27.04.2017

Audi A6, - business class car, produced under brand Audi, internal designation - « type C". Audi cars have always attracted connoisseurs premium cars, but, due to the high cost, not everyone can afford to buy such a car new, which is why most connoisseurs German car industry considering hundreds of proposals for secondary market. And, if you ask the fans of this brand why this particular car, because it is already old, and most of the mileage is already under 100,000 km, most of them will answer you - “After all, this is an Audi”, which means quality is guaranteed. Frankly, it's hard to disagree with these people, but not in the case of the Audi A6 (C6) with mileage. Today, I will try to explain under what circumstances this car is by no means worth buying, and what you should pay attention to in order to buy the car of your dreams and not be left without pants.

A bit of history:

The Audi A6 originally had an index of 100, but in 1994, engineers from the design bureau from Ingolstadt decided to adopt new rules for naming the model range, and, during the restyling of the 4th generation, the “weave” was called A6. Audi A6 (C6) debuted on the market in 2004. Initially, the car was produced only in the sedan, in 2005 the station wagon and coupe were added to the lineup. The car was designed by German chief designer Walter de Silva, who managed to keep family traits Ingolstadt brand, while emphasizing the sportiness and innovative solutions engineers. In 2005, at the international auto show in Detroit, the car was awarded the title of " Best car planets».

In 2008, a minor restyling was carried out, during which the front and rear optics, grille and front bumper. Also, the rear-view mirrors were enlarged. In the interior, the changes affected the front panel and multimedia system. After holding out on the assembly line for seven years, in 2011 the C6 gave way to the next, fourth generation of the Audi A6 model with the C7 index.

Common malfunctions and disadvantages of the Audi A6 (C6) with mileage

Body. By and large, there should be no problems here. All steel elements are well galvanized, and aluminum, in principle, are not subject to corrosion, however, over time, however, they can corrode and even crumble. The front fenders and hood are made of aluminum, thanks to which you can easily determine whether the car has been beaten. As you know, it is quite difficult and expensive to restore aluminum parts, therefore, after an accident, most owners change them to cheaper steel counterparts. And, here, which part is installed on the car, you can determine with the help of a magnet. If, when inspecting a car under the hood, you find poor sealing of seams or microcracks, this does not mean that the car was beaten. The fact is that on cars with diesel engines and powerful gasoline engines (4.2 liters), over time, from heavy loads, the joints of the body panels become loose.

Also, you should pay attention to the windshield frame - there may be the same problems ( poor sealing and microcracks). It is worth looking under the bottom of the car, because of the small clearance, the spars and the rear floor panel often come into contact with the road, therefore, the anti-corrosion layer is damaged. It would seem that optics can cause problems, but, in the case of the Audi A6 (C6), they can be quite large. Taillights often fog up, and an additional rear stop may stop working altogether. The problem is eliminated by cleaning and bending the contacts of the LED groups. From the front LED optics everything is much more complicated. First, problems with tightness. Secondly, if at least one LED from the strip running lights fails, the entire strip will stop burning, as a result, you will have to change the entire headlight unit (about 1000 USD). To avoid high costs, you need to take care of replacing the headlight seal in advance.

Engines

Audi A6 (C6) has a fairly wide range power units: gasoline - aspirated: 2.4 (177 hp), 2.8 (190, hp), 3.0 (218, 240 hp), 3.2 (256 hp) and 4.2 (321 and 350 hp), turbocharged: 2.0 (170 hp) and 3.0 (300 hp); diesel - 2.0 (140 and 170 hp), 2.7 (163, 180 hp), 3.0 (211, 224 hp). The most problematic are the engines of the series FSI TFSI, they use an aluminum block with a special Silumin coating ( aluminum and sulfur alloy), which is rapidly destroyed by high temperatures. The manufacturer claims that the resource of these power units is 250-300 thousand km, but in fact, in most cases, expensive engine repairs have to be done at a mileage of 140-170 thousand km. As a rule, the main reason is the wear of the cylinder mirror; manifested by vibrations extraneous noise at idle and increased consumption oil from 300 gr., up to 1 liter per 1000 km. Also, a failed crankcase ventilation valve can affect oil consumption.

Petrol

In TFSI engines, turbines are not famous for a large resource either, in most cases they have to be changed at a range of 150-170 thousand km. Another trouble that you will have to face during the operation of the car is a small resource of ignition coils ( go up to 70,000 km). It would seem that the problem is not significant, but this is until you are given a price tag for a replacement. After 100,000 km, troubles with the timing chain tensioner are possible. If, in time, you do not pay attention to the diesel rumble that has appeared, the consequences will be the saddest ( the pistons will meet the valves). For the 3.2 engine, in addition to the tensioner, the chain may begin to stretch by 100,000 km, in which case you will have to pay about 1500 USD for timing repair. . At the power unit 2.4, the Achilles heel is the damper on intake manifold if it knocks, you will have to pay more than 1000 USD for repairs.

The most reliable among gasoline engines is aspirated 3.0, but it is not without sin. The 3.0 engine is made according to the old technology using cast-iron liners ( installed before 2008), thanks to this, the owners of cars with such an engine are not aware of problems with the piston. Of the shortcomings this motor it can be noted: loss of tightness of the head gasket. Because of this, antifreeze gets into the engine ( ailment manifests itself on a run of 130-150 thousand km). Of the minor troubles of all motors, one can note the failure of the thermostat, pump and catalyst on a run of 100-120 thousand km. FSI direct injection powertrains have an unusual idling sound ( clatter). This feature due to the fact that the nozzles in these engines operate at a pressure of 100 bar, instead of 5 bar for similar engines with the "old" injection system.

Diesel

Diesel powertrains are more reliable than gasoline and, in most cases, without special complaints walk 250-300 thousand km. The most problematic is the 2.0 engine installed on cars until 2007. It is most often bothered by: nozzles, oil pump, valve EGR, there have been cases of cracking of the cylinder block. After 2007, the manufacturer eliminated most of the defects by installing the injection system " common rail ". However, the engine did not become problem-free; over time, the high-pressure fuel pump bothers and particulate filter. When choosing a car with a 2.0 diesel engine, consider the fact that the 140-horsepower and 170-horsepower versions power plant have many design differences. The most important of them - on a more powerful motor, piezoelectric nozzles are used, which cannot be restored.

V6 diesel engines with a Common Rail injection system are equipped with a timing chain drive, which includes a group of chains, the replacement of which will cost a fortune. Another disadvantage of diesel engines is the small resource of the dual-mass flywheel, in most cases it has to be changed at a range of 120-150 thousand km. Also, after 100,000 km, you will have to change the engine mounts and thermostat, and closer to 200,000 km - catalysts. When refueling a car with low-quality diesel fuel, the resource of fuel injectors, high-pressure fuel pump and EGR valve is significantly reduced.

Transmission

For the Audi A6 (C6), three types of gearboxes were available - five- and six-speed mechanics, a Tiptronic automatic transmission with manual shifting and a Multitronic CVT. Mechanics is considered the most reliable transmission, in which even the clutch, with careful operation, can last 150-200 thousand km ( a new one will cost around 500 USD.). There are no special complaints about the automatic transmission, but only on the technical side. But, electronics are characterized by malfunctions ( jerks appear when shifting gears and hard acceleration). For lovers of active driving on a run of 100-120 thousand km, the torque converter locking mechanism fails. You will have to pay 2000-3000 USD for the replacement.

The most problematic is the variator. The main problem lies in the wet clutch kit, it serves 100-120 thousand km, and with frequent loads ( in a traffic jam) its resource is reduced to 70-80 thousand km. Also, the culprit of the cost of 80-100 thousand km. can serve as a transmission control unit (1000 c.u.) and drive chain(250-300 USD). To extend the life of the automatic transmission and the variator in them, it is necessary to change the oil every 40-60 thousand km. Most of the Audi A6 are front-wheel drive, but, often, in the secondary market there are also all-wheel drive cars this model ( Quattro). With regard to reliability this system all-wheel drive, then, with proper maintenance, there will be no problems with it. The only thing to consider when choosing such a car is that the all-wheel drive version has a more complex suspension design.

Suspension Audi A6 (C6) with mileage

In general, the suspension of the sixth generation Audi A6 is quite reliable, but you need to be prepared for the fact that every 100,000 km a considerable investment in the chassis will be required. First to give up upper arms, this happens approximately on a run of 80-90 thousand km. Approximately at the same run, the steering tips also need to be replaced. Wheel bearings and live 90-110 thousand km ( change in assembly with the hub), the stabilizer struts can last the same amount. ball joints ( change assembly with lever) and shock absorbers go 100-120 thousand km. Silent blocks and rubber bushings nurse 150-200 thousand km.

Rear suspension in rare cases requires intervention up to 150,000 km. The only thing to worry about rear suspension– caliper guides and pad mounting brackets ( may rattle when driving on uneven surfaces). An air suspension was also installed on the Audi A6 (C6), but such instances are not common, and thank God, since the reviews about it are not the best ( low reliability, complex repair, expensive spare parts). Steering reliable and usually does not deliver special problems, but sometimes the steering force regulator fails, which leads to a decrease in the efficiency of the hydraulic booster.

Salon and electronics

Electronics is the most trouble spot Audi A6 (C6), and when you find out about the cost of repairs, it becomes uncomfortable ( 72 control units installed in the car various systems ). Here, for example, the seat heating control unit, its diagnostics and flashing will cost 100-150 USD, and for the replacement of a faulty unit, you will have to pay about 500 USD. The high cost is due to difficult access to electronic components, and the replacement of any of the blocks requires prescribing in the system, even replacing the battery is not complete without adaptation. Because of this, finding a car with a mileage of 100-120 thousand km, in which the front panel has not been disassembled at least once or the door trim has not been removed, is almost unrealistic. This is precisely the main reason extraneous sounds while driving on uneven pavement (squeaks, knocks, etc.).

The main sores of the Audi A6 (C6) electronics are:

• multimedia system ( stops reading discs). To fix the problem, you need to clean the reader ( sometimes a cleaning disc helps).
• Because of bad contact on the block of wires, the quality of reception of radio waves is deteriorating. The problem is eliminated by crimping the wires.
• Possible failure of the force regulator on the steering wheel. The problem is manifested by a suddenly heavier steering wheel, even at speed.
• Faulty climate control system stuck heater valves). It is required to clean the valve block ($ 100-150), if the block does not help, you will have to change it ($ 800).
• Often the parking system fails. The reason is in space sensors.
• By 100,000 km, problems with the electronic parking brake appear. The wiring is frayed, which leads to failure executive mechanisms(repair will cost 500-700 USD).
• On a run of 120-140 thousand km, the headlight corrector unit fails.

If we talk about the quality of finishing materials, then they are on high level and do not cause any complaints even after many years of operation.

Outcome:

Audi A6 (C6) can hardly be called reliable and unpretentious car, but, nevertheless, he continues to be one of the leaders in his segment. In order to understand why they choose this car and forgive it for all the shortcomings, you need to ride it at least once.

Advantages:

• Design.
• Smooth running.
• Build quality and finishing materials.

Flaws:

• Problems with electronics.
• Increased oil consumption.
• High maintenance cost.

In 2004, the automaker from Ingolstadt showed the world the next, third generation (index C6) of a mid-size Audi models A6 in a sedan body, and a little later, a passenger-and-freight version with the traditional Avant prefix joined the line. After three years, a restyled model was introduced to the market, which has improved in all respects - the appearance has noticeably changed, the interior has undergone cosmetic changes, and new equipment has appeared.

In this form, "A6" was produced until 2011, after which its successor appeared.

By their own external dimensions A6 in the C6 body belongs to the European class E, and in terms of status - to its premium group. The car was offered in two body styles - a sedan and a five-door station wagon.

The length of the "third" Audi A6 is from 4916 to 4933 mm, height - from 1459 to 1463 mm, width - 1855 mm. Wheelbase characteristics and ground clearance do not depend on the modification - 2843 mm and 130 mm, respectively. The mass of the car is 1540-1830 kg in the stowed state.

The "third" Audi A6 was equipped with a large number of engines that run on both gasoline and diesel fuel.

• The gasoline part is in-line “fours” and V-shaped “sixes” and eights (both atmospheric and turbocharged) with a volume of 2.0-4.2 liters, generating from 170 to 350 “horses” and from 280 to 440 Nm of rotational thrust.
• Turbodiesel versions were also installed under the hood of the car - four- and six-cylinder 2.0-3.0 liters, in the bins of which 136-239 lurked Horse power power and 320-500 Nm of peak thrust. The partnership with the units is 6-speed “mechanics” and “automatic” Tiptronic, or stepless variator Multitronic. There are two types of transmissions - front-wheel drive or all-wheel drive quattro.

The third generation Audi A6 is built on the C6 platform, which implies the presence of spring suspensions in the design of both axles - both front and rear. multi-link scheme with anti-roll bars.

The steering system is aggregated with a hydraulic booster, and the brake package is presented disc brakes on each of the wheels (ventilated on the front) with ABS.

In the arsenal of the "third A6" there are a number of advantages - good performance dynamics and economy, quality interior, rich equipment, excellent handling, thoughtful ergonomics and spacious interior decoration.

Not without drawbacks - large turning radius, high cost original spare parts, costly maintenance and modest ground clearance.

In 1997, spring came and Audi released a new body for the Audi A6 C5, they were already sold in sedan and station wagon (Avant). IN new version of course, they changed the design, but the silhouette and style of the “muzzle” of the car itself remained similar to all other Audi models, for example, the Audi A4. The design was redesigned in such a way that the aerodynamics of the car improved and, as a result, the model became a serious competitor for the Mercedes-Benz E and BMW 5. A few years later, one of the car magazines included this sedan in the list of 10 best cars in 2000.

Starting with this model, its famous sports version appeared, which was called the Audi S6.

Regarding the body, the company decided to do everything ideally and galvanized it, so that it did not rust, the manufacturer, knowing this very well, gave the buyer a 10-year warranty on the body.

Exterior

In front, the sedan received large optics with a lens inside, but in general with a halogen filling. There is a long hood with fairly strong reliefs the width of the grille. The radiator grille, in turn, has a chrome trim around. The massive bumper of the model also has a chrome trim in some places, as well as round fog lights.

The side of the car has really muscular fender flares and a slight aerodynamic line at the top. The shape of the body has also changed, it has become smoother.

The rear part also has a smooth shape, optics of a different shape with a good design are used. The smooth large trunk lid essentially has nothing interesting except for the chrome insert at the bottom. rear bumper has a huge plastic insert and essentially nothing more.

Dimensions:

• length - 4.796 m;
• width - 1.810 m;
• height - 1.453 m;
• wheelbase - 2.760 m;
• clearance - 0.120 m.

Specifications Audi A6 C5

Just like in the review of the previous generation, we will not describe in detail each TFSI engine, as there are simply a huge number of them. You can find out their characteristics from the tables below.

Type	Volume	Power	Torque	Overclocking	Max speed	Number of cylinders
Petrol	1.8 l	150 HP	210 H*m	9.7 sec.	216 km/h	4
Petrol	2.0 l	130 HP	195 H*m	10.5 sec.	205 km/h	4
Petrol	2.4 l	170 HP	230 H*m	9.3 sec.	224 km/h	V6
Petrol	2.7 l	250 HP	350 H*m	6.8 sec.	248 km/h	V6
Petrol	3.0 l	220 HP	300 H*m	7.5 sec.	243 km/h	V6
Petrol	4.2 l	300 HP	400 H*m	6.9 sec.	250 km/h	V8

This table will allow you to familiarize yourself with TDI diesel engines.

Type	Volume	Power	Torque	Overclocking	Max speed	Number of cylinders
Diesel	1.9 l	130 HP	285 H*m	10.5 sec.	203 km/h	4
Diesel	2.5 l	155 HP	310 H*m	9.7 sec.	219 km/h	V6
Diesel	2.5 l	163 HP	310 H*m	9.3 sec.	222 km/h	V6
Diesel	2.5 l	180 HP	370 H*m	8.9 sec.	223 km/h	V6

The suspension of the car is completely made of aluminum, which slightly reduces reliability, but reduces the weight of the car. The model has a completely independent system, a multi-link system is installed in front, it is a stabilizer bar and 4 levers for each wheel. A multi-link system is also used at the back.

boxes Audi gear A6 C5 (1997-2004), the manufacturer offered different ones, there are both mechanics with 5 or 6 steps, and a 5-speed automatic, and there were also CVTs on some versions. The car has front-wheel drive in most configurations, but there were also all-wheel drive versions quattro.

Salon

Unfortunately, the interior of the car has not changed much, but still there are some differences. In front there are good leather seats with heating and a little lateral support. back row got a sofa for three passengers. In the middle below are retractable coasters. There is also an armrest with niches for small items. There is enough space both in front and behind.

The steering column is a 4-spoke steering wheel with height and reach adjustment. Dashboard– 4 small analog gauges and two large speedometers and tachometers. Also present on-board computer with little information about the car.

The center console at the top has a button alarm and one cup holder that slides out at the push of a button. Below is a head unit working on cassettes, these radio tape recorders have long been replaced by more modern ones. The control unit for 2-zone climate control has seat heating knobs, three monitors and many buttons for settings.

The tunnel is essentially simple, but most of it is made of wood. There is a niche for small things, a large gearbox selector. Further, the tree ends and the plastic begins, on which the selector for adjusting the rear-view mirrors is located. In the same area, there is a parking brake handbrake and an armrest. The trunk has not changed much, its volume is 551 liters.

Price

This car can be easily purchased in the secondary market, where the average price is 300 000 rubles, there are more expensive options, there are cheaper ones, as you understand, it all depends on the condition and configuration.

Acquire this model or not, it's up to you. In principle, the Audi A6 C5 is nice sedan, but it is already a bit old and despite the fact that it is reliable, it still starts to break down a little bit due to age.

Video

Demand for the Audi A6 C6 series is high: if the car is in good condition, it sells very quickly. Most of the copies on the Russian market are imported from Europe, the rest are from the USA or officially sold in Russia. In Europe, the A6 C6 was the best-selling car in the segment for three consecutive years from 2005 to 2007, with a turnover of about 120,000 units per year.

Prices for an Audi A6 C6 in good condition start at 400-500 thousand rubles, while for more recent copies they ask for about 1,000,000 rubles. The fall in value is generating interest in the car from people who are not really able to maintain it. Having bought a used A6 with the last of his money, or, worse, on credit, the owner soon realizes that operating costs "bring him to his knees." Moreover, the complexity of the design of the A6 C6 excludes the possibility of independent or cheap repairs.

With regards to copies from Germany, it must be understood that the Germans got rid of the "good" Audi A6 for two reasons: after a serious accident or because of the high mileage, reaching 300,000 km. An annual mileage of 50,000 km is common in Europe. Honest owners of autocommission shops argued that buying an A6 in Germany from the first owner for resale was unlikely. Such copies are very expensive, and do not provide an opportunity to make good money. One of the used car dealers admitted that the odometer reset procedure is in the order of things, and it is more difficult than in the previous version, but easier than in the BMW 5 E60.

Body and interior.

Organization inner space Can only be summed up in one word - amazing! As a result of the location of the engine in front of the front axle, and not behind it, in the depths of the body, as in BMW, it was possible to get a huge cabin. The disadvantage of this arrangement is big. front overhang, which is why many drivers damage the front bumper while parking at high curbs.

A6 has the most big trunk in its class - 555 liters, while in BMW it is 35 liters less, and in Mercedes - 15 liters. The shape of the Audi trunk is more correct. Under the floor there was a place for a full-size spare wheel and a battery mounted on the right side.

In the case of Audi, there is no need to be afraid of rust. Vehicles from Ingolstadt are renowned for their good corrosion protection, "double galvanized" sheet metal. Body elements front of the A6 C6 are made of aluminum, like the BMW 5 Series E60. If during the inspection “red spots” are found, especially on the hood, fenders and trunk lid, then you can be sure that the car has had accidents in the past. It was the hood and fenders that were originally made entirely of aluminum, which is not subject to corrosion. Often, after damage, cheap alternative substitutes made of heavier sheet metal are installed. However, recently traces of corrosion can be found in the threshold area.

Chassis.

Aluminum parts are also used in the suspension. For example, the front lower wishbones. The suspension has a complex multi-link design, which is common for this class. However, chassis elements wear out too quickly. The front levers, as a rule, have to be sorted out every 100,000 km (from 17,000 rubles for a set of levers). Rear arms nursed up to 200,000 km.Front wheel bearings can make noise after 100-120 thousand km.

As options in the A6, an air suspension was offered with the ability to change the clearance (included in basic equipment Allroad models). The air suspension is more reliable than the Mercedes analogue, but do not forget that when it comes to replacing shock absorbers with built-in pneumatic elements, the service will issue a five-figure bill - 70-80 thousand rubles. Failures in the system are often caused by rotten wiring (about 8,000 rubles). If you travel for a long time with a faulty pneumatic system, then the compressor and valve block may fail (over 23,000 rubles).

Audi A6 is able to surprise with very effective brakes, but the front brake discs and the pads wear out pretty quickly. And the cost of replacement will certainly disappoint you. An electric parking brake was standard equipment. Its malfunctions are common (more often due to wiring problems).

Electronics.

Audi A6 C6 received a large number of different electronic systems. Unfortunately, with age, owners have to deal with minor malfunctions in its operation. For example, parking sensors fail (from 1,000 rubles for an analogue or 5,000 rubles for an original). Or the cooling system fan control unit fails (contacts rot).

All vehicles are equipped with a Multi Media Interface - MMI for short. This is an integrated on-board electronics system with a display in the center console and a controller between the front seats. There are several varieties of it: 2G Basic, 2G High, and after restyling 3G with navigation, DVD and hard drive. MMI does not allow as many nodes to be controlled as BMW's iDrive. The Audi driver can only find out how soon he needs to report to Maintenance. However, using the diagnostic interface, you can unlock hidden features, such as oil level detection or battery charge voltage. Using VAG-COM or VCDS, it is quite possible to change many parameters on your own various devices. However, without proper knowledge, it is easy to bring the car to a complete blockage.

Transmission.

The least stable is the Multitronic CVT, which is present only in cars with front axle drive. Problems with the variator may arise after 100,000 km. Much more reliable is the Tiptronic automatic with a classic torque converter, which was used exclusively in Quattro all-wheel drive modifications.

Audi claims that it is not necessary to change the oil in the box, but this is not true. Without an oil change, automatic transmissions reach a maximum of 200-250 thousand km, and Multitronic ends even earlier. It is recommended to change the oil every 60,000 km. Then the machine is able to cover more than 400,000 km. In case of problems with any of the automatic transmissions, before going to the service, you should stock up on an amount of about 100,000 rubles.

Drive unitQuattro.

Full system Quattro drive available in all variants, except for cars with 2-liter engines. Traction to the wheels is transmitted constantly to all four wheels, but in a different ratio. Torsen central differential is responsible for the distribution of torque along the axes. In addition, an electronic simulation of the differential lock mechanism is used on the front and rear axles.

It should be noted that the all-wheel drive system is very reliable. Faults are extremely rare, and even then, only among those who like to "light up": the transfer case bearings wear out, and the shank play appears.

The manufacturer claims that transmission fluid filled for the entire service life. But in reality, the fluid resource is much less than the transmission itself - a hum appears. It is recommended to change the oil at least once every 100,000 km.

Engines.

The palette of engines includes 20 different options, 12 of them are petrol.

In the short term, petrol engines, especially the 3-litre, are the cheapest to run. a common problem gasoline units - unstable ignition coils. Owners of diesel versions will face high costs for the replacement of expensive equipment.

The most risky is the 2.0 TDI diesel with unit injectors. The most common defects: drive wear oil pump and cracking of the block head. In addition, failures plagued the pump injectors and the EGR valve.

In 2007, the 2-liter turbodiesel received a Common Rail injection system, and the shortcomings were eliminated. However, he began to deliver injection pump problems. Keep in mind that the 140-horsepower and 170-horsepower versions of the power plant have many design differences. The most important of these is the presence in more strong motor piezoelectric injectors that cannot be restored.

Diesel V6s cause a lot of controversy. All engines use a Common Rail type injection system and a chain-type timing drive, which includes a group of chains. Unfortunately, it cannot be called unattended. After about 150-200 thousand km, problems arise with the upper timing chain tensioner. If the chain were placed in the usual place - in front of the engine, then the replacement would not be difficult. But Audi engineers went too far, placing the timing drive on the side of the gearbox. Therefore, to get to the tensioner, it is necessary to completely dismantle the engine. In the best case, you will have to pay 50-60 thousand rubles for repairs.

Some owners ignore drive chain noise camshafts, claiming it's okay. In an advanced case, when the noise becomes too loud, the chain can jump a couple of teeth, which can damage the valves. In this case, the repair will require at least 100,000 rubles. After restyling in 2008, the problem with the tensioner was solved. However, by 250,000 km, the timing chain is often stretched.

Also in TDI engines there are malfunctions typical of modern diesel engines. For example, a malfunction of the intake manifold flaps that change its length. The cost of a new collector is about 30,000 rubles. In addition, it may fail throttle assembly(gear wear) or DPF differential pressure sensor. After 200-250 thousand km, you should be ready to replace the turbocharger.

Nevertheless, there is no doubt about the durability of diesel engines. If you replace, albeit expensive, a faulty unit, then you can continue to drive almost forever. It is not uncommon for an A6 with a 2.0 TDI engine to run 500,000 km in 4-5 years as a taxi, and continue to work properly further. However, many owners, in anticipation of big expenses, simply give away their car for little money.

Gasoline engines require less maintenance costs as long as they are in good condition. However, in the case of TFSI, it is not uncommon for the ignition coils, thermostat, and sometimes the intake manifold to cause trouble. The latter ailment is very expensive to eliminate. The 2.0 TFSI has a complex equipment, and the simplest in design is a 2.4-liter V6 without a direct injection system. True, it is not without flaws.

Engines 2.4, 2.8 FSI, 3.2 FSI and 4.2 FSI have problems with the timing chain drive similar, in fact, to the 3.0 TDI: premature wear and difficulty in replacing (timing drive from the box). Some experts have adapted to change the timing chain drive of 2.4, 2.8 and 3.2 liter engines without removing the engine.

All atmospheric petrol units, with the exception of the 3-liter, sometimes present unpleasant surprises in the form of scoring and, as a result, excessive oil consumption. Several reasons: faulty fuel injectors, washing oil from the walls of the cylinders; tightening with oil change; low-quality oil and lack of control over its level.

Operation and costs.

A typical problem of the restyled version is the burning LED lights (LED) in the headlights and rear lights. Apparently, the engineers considered that they would be eternal, since they did not provide for the possibility of replacing the LEDs separately from the headlight. Fortunately, craftsmen have learned how to restore the performance of optics by replacing burned-out LEDs and resistors. In copies produced in the early years, the MMI system sometimes freezes. In this case, it often helps to install a new software. But sometimes you can’t do without visiting a specialized service.

Unfortunately, we have to admit that the image of the Audi A6 C6 is a bit overrated. Some copies constantly annoy with malfunctions, especially cars of the initial period of production. Buying a good A6 for 400-500 thousand rubles is quite realistic, but it is unlikely that it will fully satisfy the owner in the future. Only cars after restyling in 2008 became more thoughtful and reliable. Worst of all, neither low mileage nor regular visits to the dealer service station protect against many malfunctions.

While the Audi A6 has not broken down, it is difficult to find serious flaws in it. Excellent finishes, rich equipment and the most spacious interior in the class are a real delight. The interior looks great with no signs of fatigue even after two three hundred thousand kilometers. This is very pleasing to any kind of merchants who, without any fear, rewind the odometer counter back 100-200 thousand km.

Add positive emotions powerful engines and Quattro all-wheel drive system. However, significant defects in gasoline engines are of concern, the likelihood of which increases with increasing mileage.

Special versions.

AudiA6All road

The Audi A6 Olroad was produced from 2006 to 2011. All cars on the standard equipment list had an all-wheel drive system and air suspension. As engines, petrol 3.2 or 4.2 liters and diesel - 2.7 and 3.0 TDI were offered. The vast majority of copies have a Tiptronic automatic transmission. The cost of the car is very high.

AudiS6 andRS6

While the S6 looked pretty "decent", the RS6 introduced in 2008 was a real monster with heavily flared wheel arches. Both models used a V10 engine: the S6 had a displacement of 5.2 liters and produced 435 hp, and the RS6 5.0 liter produced 580 hp. At first, the RS6 was only available in the back station wagon Avant, but a year later, a sedan appeared.

The 5.2-liter V10 has the same basic design as the 3.2 and 4.2-liter engines. V10 has a tight layout - neighboring cylinders are too close. As a result, the motor experiences huge thermal loads, which contributes to the rapid aging of the oil. The use of oils of the "Long Life" type and, accordingly, long replacement intervals contributed to the wear of the engine even in the first 100,000 km. The problem affected almost all instances of 2007-2008. Later, a number of changes were made, including a shorter oil change interval, but the high risk of a major overhaul remained.

Specifications:

Audi S6 C6: 5.2 V10, power - 435 hp, torque - 540 Nm, maximum speed 250 km / h, acceleration 0-100 km h - 5.2 seconds

Audi RS6 C6: 5.0 V10 biturbo engine, power - 580 hp, torque - 650 Nm, top speed - 250 km / h, acceleration 0-100 km / h - 4.5 seconds

StoryAudiA6 C6.

2004 - end of production of A6 C5, debut of A6 C6.

2005 - start of sales, the appearance of the Avant station wagon version.

2006 - the appearance of the Allroad modification (only in the station wagon body with air suspension). The lineup replenished the S6 with a V10 engine.

2007 - 2.8 FSI appeared in the engine line.

2008 - restyling, affecting the front and rear of the body. Behind appeared led lights. In the front, the bumper and fog lights. Inside, a new central display was installed, the instrument panel was changed, and a new MMI 3G controller was introduced. RS6 presentation.

2010 - End of RS6 production.

2011 - the new generation A6 sedan C7 is introduced.

AudiA6 C6 - typical problems and malfunctions:

• - failure of the dampers in the intake manifold 3.0 TDI
• - failure of the oil pump drive in the 2.0 TDI engine
• - defective timing chain tensioner and problems with injectors in 2.7 and 3.0 TDI engines
• - failure of the pneumatic system
• - problems with continuously variable transmission Multitronic
• - oil pressure sensor failures
• - problems with the trunk lock
• - ingress of water into additional brake light station wagon Avant

AudiA6 C6 in reliability ratings

GTÜ: Vehicles under 3 years old received a bad mark for brakes. For other parameters, the result is better than the average values ​​in the class.

T Ü V : cars aged 4-5 years were rated excellent and ranked 19th in the reliability rating. Audi A4 and A8 are higher in the same rating.

DEKRA: in 87.7% of the examined A6 C6 there were no technical defects. Serious faults were found in 3.5% of cars, and minor faults in 8.8%.

• - gasoline modification with a 3 liter engine and mechanical box gears - the cheapest offer among used A6
• - cars with traditional suspension and all-wheel drive Quattro
• - versions with 3.0 TDI and full service history

Avoid:

• - 2.0 TDI with unit injectors - regardless of mileage
• - vehicles with Multitronic CVT
• - diesel versions with 3.0 TDI whose service history cannot be verified
• - cars with any malfunctions and powerful S6 with a 5.2-liter V10. Any repair will be astronomically expensive.

Advantages:

• - perfect protection against corrosion
• - the most spacious salon among German classmates
• - excellent all-wheel drive system
• - very large trunk

Flaws:

• - unsuccessful turbodiesel 2.0 TDI pre-styling version
• - very complex front and rear suspension design
• - most copies on the secondary market have an unsatisfactory technical condition, twisted odometers and traces of recovery after an accident

Version	2.0TFSI	2.4	2.8 FSI	2.8 FSI	2.8 FSI
Engine	petrol turbo	petrol	petrol	petrol	petrol
Working volume	1984 cm3	2393 cm3	2773 cm3	2773 cm3	2773 cm3
	R4/16	V6/24	V6/24	V6/24	V6/24
Max power	170 HP	177 HP	190 HP	210 HP	220 HP
Max Torque	280 Nm	230 Nm	280 Nm	280 Nm	280 Nm
Dynamics
Max speed	228 km/h	236 km/h	238 km/h	237 km/h	240 km/h
Acceleration 0-100 km/h	8.2 sec	9.2 sec	8.2 sec	8.4 sec	7.3 sec

Specifications: Audi A6 C6 (2004-2011) - petrol versions.

Version	3.0TFSI	3.2 FSI	4.2	4.2 FSI
Engine	petrol turbo	petrol	petrol	petrol
Working volume	2995 cm3	3123 cm3	4163 cm3	4163 cm3
Arrangement of cylinders / valves	V6/24	V6/24	V8/40	V8/32
Max power	290 HP	255 HP	335 HP	350 HP
Max Torque	420 Nm	330 Nm	420 Nm	440 Nm
Dynamics
Max speed	250 km/h	250 km/h	250 km/h	250 km/h
Acceleration 0-100 km/h	5.9 sec	6.9 sec	6.5 s	5.9 sec
Average fuel consumption in l/100 km			11.7	10.2

Gasoline engines - a brief description

The 2.0 TFSI is the only 4-cylinder petrol engine in the range. In other VW Group vehicles, it has more high power. In this model, he is assigned the role of the base motor. The power unit is too weak and has serious drawbacks: high flow oil and the accumulation of deposits in the head of the block. It is worth noting that this motor is different from those that were installed in the A4, A5 and Q5, where they earned a bad reputation as an oil eater.

2.4 - has the simplest design in the A6 C6 engine line and uses distributed fuel injection. Typical malfunctions: failure of the thermostat and dampers in the intake manifold. There is a high risk of scuffing on the cylinder walls.

2.8 FSI- modern engine with direct injection system, variable valve timing and timing chain. He is also prone to scuffing, but it is more difficult to line the engine - the cylinder walls are too thin.

3.0 - an old design engine that was used by its predecessor. It has a belt-type timing drive, for the replacement of which it is necessary to disassemble the front of the car. Naturally aspirated V6 port injection very reliable, but finding a car with such an engine in good condition is a big problem.

3.2 FSI - has direct injection fuel and is usually combined with a Tiptronic automatic transmission.

4.2/4.2 FSI - Audi's V8 sounds great and drives well. Fuel consumption at an acceptable level - 13-15 l / 100 km. Until 2006, a version with distributed fuel injection was used, and after that - with direct fuel injection (FSI). The first has a combined timing drive: belt + chain, and the second has a chain. FSI is slightly lighter and more economical, but not as durable as before. Carbon accumulates on intake valves, and there are problems with the durability of the timing chain drive. The reliability of the upper timing chain also raises questions in the version with distributed injection.

Version	2.0 TDIe	2.0 TDI	2.0 TDI	2.7 TDI
Engine	turbodis	turbodis	turbodis	turbodis
Working volume	1968 cm3	1968 cm3	1968 cm3	2698 cm3
Arrangement of cylinders / valves	R4/16	R4/16	R4/16	V6/24
Max power	136 HP	140 HP	170 HP	180 HP
Max Torque	320 Nm	320 Nm	350 Nm	380 Nm
Dynamics
Max speed	208 km/h	208 km/h	225 km/h	228 km/h
Acceleration 0-100 km/h	10.3 sec	10.3 sec	8.9 sec	8.9 sec
Average fuel consumption in l/100 km

Specifications: Audi A6 C6 (2004-2011) - diesel versions

Version	2.7 TDI	3.0 TDI	3.0 TDI	3.0 TDI
Engine	turbodis	turbodis	turbodis	turbodis
Working volume	2698 cm3	2967 cm3	2967 cm3	2967 cm3
Arrangement of cylinders / valves	V6/24	V6/24	V6/24	V6/24
Max power	190 HP	225 HP	233 HP	240 HP
Max Torque	400 Nm	450 Nm	450 Nm	500 Nm
Dynamics
Max speed	232 km/h	243 km/h	247 km/h	250 km/h
Acceleration 0-100 km/h	7.9 sec	7.3 sec	6.9 sec	6.6 sec
Average fuel consumption in l/100 km

Diesel engines - a brief description.

2.0 TDIe - A small "e" means a small sacrifice in favor of the environment: power is reduced by 4 hp, a particulate filter is installed and tires with reduced rolling resistance.

2.0 TDI 140 HP - a turbodiesel with pump nozzles, the purchase of which should be discarded. A 2-liter turbodiesel can only be considered after modernization in 2007, when a Common Rail type power system was used.

2.0 TDI 170 HP - the engine differs significantly from the 140 strong counterpart, including the presence of piezoelectric injectors that cannot be repaired.

The 2.7 TDI is the predecessor of the 3.0 TDI, has a common rail injection system and a timing chain drive. The most reliable in the pre-styling version.

3.0 TDI - initially had many problems, in the future they were gradually eliminated by Audi engineers. A turbodiesel makes for great driving pleasure, but is very expensive to maintain and repair.

Conclusion.

Don't fool yourself. Cheap Audi A6 of the first years of production is already seriously depleted, which means they promise big expenses. It is better to pay attention to more expensive restyled copies of recent years.

Audi A6 C6 is one of the most prestigious and expensive cars. A few years after the release, the model is confidently moving into the category of affordable luxury, which affects the number of reviews about the Audi A6 C6.

Interior

High-quality natural materials - wood, leather, plastic - were used for interior decoration. The factory assembly of the body is excellent and does not cause any complaints, however, in the reviews of the "Audi A6 C6" it is indicated that squeaks occur if non-specialists were involved in the assembly. The front panel of the car is removed only if it is necessary to adjust the electronic control units or the climate control servos break down.

Additional soundproofing of the cabin is not required: the interior is more than ergonomic, after the restyling carried out in 2008, it acquired the proprietary MMI multimedia system. However, such an innovation also has its drawbacks, noted by the owners of the Audi A6 C6 in the reviews: the sound often disappears, the buttons do not work, or the display turns off.

Body

The hood and front wings of the C6 are made of aluminum - an expensive metal with a low level of maintainability, and therefore, after accidents, they are often replaced with counterparts made of other types of metal. Despite the fact that the entire body has excellent corrosion resistance, it is the replaced parts that most often begin to rust and collapse.

Range of petrol engines

Third Audi generation A6 in the back of C6 was equipped with a wide range of petrol and diesel type. They can be divided into two main categories: aluminum block cylinders and with a cast-iron block.

Engine 2.4 MPI

In the line of power units with aluminum cylinder head - base model. The owners of the "Audi A6 C6" 2.4 l in the reviews talk about the main reason expensive repairs motor - scuffing on the walls of the cylinders. The malfunction cannot be eliminated by lining or replacing the cylinder block and occurs in direct proportion to the regularity of engine maintenance - engine oil, for example, must be changed every 8-10 thousand kilometers. The engine power of 2.4 liters on gasoline, according to reviews, on the "Audi A6 C6" is 177 horsepower, which is quite enough for a measured ride in the city without pretensions to racing.

Engine 2.8 FSI

The motor has a similar 2.4 MPI design, but at the same time it does not meet with any complaints from motorists: the reason for this may lie in the reduced piston stroke.

Engine 3.2 FSI

The owners of the "Audi A6 C6" in the reviews warn that it is impossible to buy a car with such an engine if outside noise and rattling appear immediately after starting, which are signs of a breakdown in the hydraulic timing chain tensioner. Its repair is too time-consuming and expensive, it requires the disassembly of actually half of the car and the replacement of the chain itself, the working life of which is 150 thousand kilometers.

Engine 4.2 FSI

It differs from the previous version of the engine in the presence of two additional cylinders in the design, which are practically not used and wear out quickly - the replacement of the entire block is required after 50 thousand kilometers. Motorists and experts also do not recommend purchasing a model with this power unit, especially since the line has its worthy replacement - a three-liter TFSI.

Engine 3.0 TFSI

A fairly powerful 290-horsepower unit with six-second acceleration dynamics. Despite the presence of the letter T in the name, the engine is equipped with mechanical compressor. The owners of the "Audi A6 C6" 3.0 l note in the reviews cheap service of this engine, especially in comparison with the turbine, increased fuel consumption and better traction on low revs. An increase in fuel consumption, by the way, may indicate the presence of scoring on the cylinder walls.

3.0 MPI engine with cast iron cylinder block

The Audi A6 C6 inherited from its predecessor, produced in the C5 body, received 3.0 MPI. Motorists and owners of the model consider it the most reliable of the entire line of units. It was installed on models produced before 2008.

The power of the three-liter engine is 218 horsepower. Fuel consumption is quite expected and within the city is 16-18 liters per 100 kilometers.

Engine 4.2 MPI

Similar to the previous engine installation with eight cylinders. Fuel consumption is identical to a three-liter engine, but with the active use of the gas pedal, it can jump up to 25 liters.

Engine 2.0 TFSI

In the line of gasoline power units, this is the only four-cylinder engine. Its power is appropriate - 170 horsepower, which is enough for a calm and measured ride in the city. Frequent and heavy loads quickly wear out the engine.

The owners of the "Audi A6 C6" in the reviews of the 2.0 TFSI note that the standard engine maintenance is replenished with turbine diagnostics, but is greatly simplified due to the presence cast iron block cylinders and simple design.

transmissions

The proposed engines were paired with a six-speed manual. The owners of the Audi A6 C6 noted that when the first problems with the car appeared in traffic jams and when maneuvering in city traffic, it is worthwhile to diagnose the transmission - it is likely that an expensive dual-mass flywheel will need to be replaced.

There were two automatic transmissions:

• Installed only on the all-wheel drive "Audi A6 C6 Quattro" and, according to reviews, reliable torque converter Tiptronic manufactured by ZF.
• Improved version of the Multitronic CVT with chain drive. Installed on front wheel drive Audi versions in the body of the C6.

Tiptronic, judging by the reviews of the "Audi A6 C6 TDI", is not particularly sensitive to a sharp start, racing at top speeds and slipping in place. But this does not mean at all that the transmission is immortal - it is considered maintenance-free, but in practice it requires an oil change every 60 thousand kilometers. With careful operation, its working life can be increased by 100 thousand kilometers without resorting to repair work.

If the need for repair nevertheless arose, then there will be no difficulties in finding spare parts and specialists in their field. However, such work will cost a large amount: the price tag starts from 70 thousand rubles. At full exit automatic transmission out of action, the owner of an Audi A6 C6 will have to fork out for a mechatronics unit - it will be much easier to purchase components at a disassembly.

The situation with Multitronic is many times more complicated: gear shifting is easier and smoother, there are no “glitches” in operation and car jerking. From a constructive point of view, the variator is very reliable, but quickly fails under the influence of overloads, slippage and overheating. For this reason, in fact, the frequency of changing gear oil plays a huge role.

The variator chain has an operational resource of 150 thousand kilometers and an affordable price, however, with illiterate maintenance and untimely replacement can cause damage to expensive cones. Significantly complicates the diagnosis and any work is the fact that it is impossible to assess the condition of the transmission without its complete analysis. The minimum that the owner of the Audi A6 C6 can pay attention to is the absence of slips, twitches and extraneous sounds in operation.

All transmissions offered for the car are reliable, do not have pronounced weaknesses and shortcomings. At the same time, it should be remembered that automatic transmissions require special maintenance and careful operation, which is not always expected from owners of Audi, equipped with powerful engines.