The second-generation Mercedes-Benz M-Class replaced the first-born in the spring of 2005. The engineers from Stuttgart carried out great job to create a new crossover. The car received advanced and sophisticated technical solutions that turned into a headache for the owners of the second generation ML. The W164 was assembled at the assembly line of the Tuscaloosa plant, Alabama, USA. In March 2008, a restyled version of the M-class went on sale.
Engines
The first production MLs of the second generation were equipped with a gasoline V6 - M272 with a displacement of 3.5 liters and a power of 272 hp. (ML350), V8 - M113 5.0 l / 308 hp (ML500) and diesel V6 OM642: 3.0 l recoil 190 hp (ML280 CDI) and 224 hp (ML320 CDI). In 2006, the V8 OM629 diluted the line of diesel engines with a working volume of 4.0 liters 306 hp. And in June 2007, the flagship V8 M113 was replaced by the M273 with a power of 388 hp. (ML500 and ML550). In 2009, there was a marketing castling: the ML320 CDI model was removed from sale, and instead the ML300 CDI (190 and 204 hp) and ML350 CDI (224 hp) appeared with the same 3-liter V6 OM642.
The most widespread petrol modifications ML350. The first M272 power units turned out to have significant design flaws, which were corrected at the end of 2007. So with a run of more than 80-100 thousand km, "diesel" could appear, and later it would light up " check engine". Reason: wear of the balance shaft sprockets. To replace it, it is necessary to remove the engine, which is why repairs are significantly more expensive. In addition, it is necessary to change the timing chain, the tensioner with dampers and the camshaft magnets, since the chain often stretches to 100-150 thousand km, and the magnets of the camshaft position adjustment mechanism begin to “strange”. Experts recommend changing the oil pump, although there are no problems with it. For repairs in the official service, they will ask about 150-160 thousand rubles, along with spare parts. Self-selection spare parts and replacement in a regular service will cost almost 2 times cheaper - about 80-100 thousand rubles. After finalizing the problem node, the costly trouble began to occur much less frequently. Exactly the same problem is inherent in the 273rd V8 engine. True, there, to replace the balance shaft, the removal of the engine is not required, which simplifies and reduces the cost of repairs.
With a run of more than 100-150 thousand km, some ML350 owners are faced with the need to replace the intake manifold due to problems with the vacuum damper valves. The cost of the collector is about 40,000 rubles. The node was finalized in 2007.
Plastic plugs of the engine block head begin to "poison" the oil after 40-60 thousand km. There is also oil leakage at the junction of the filter housing and the oil cooler heat exchanger - due to a leaky seal.
Diesel engines the OM642 series of pre-styling Mercedes ML suffer from a defect in the exhaust manifold. Pieces of the inner shell of the collector or welds break off and fall into the turbine. As a result, get serious damage turbine blades and shaft, as well as a mechanism for changing geometry. It will take about 70-90 thousand rubles to replace two collectors. The turbine itself is tenacious, and with proper care, it easily takes care of more than 200-300 thousand km.
Transmission
All Mercedes engines The ML was paired with a 7G-Tronic 722.9 automatic transmission. According to the established tradition, the "automatic" pre-styling ML W164 also had a number of problems, some of which were resolved in 2007. The electro-hydraulic control unit often "departed to another world" after 100,000 km. For a new block, you will have to pay about 60-100 thousand rubles. Problems with the valve body in some cases were caused by the failure of 2 speed sensors. Some services restored the valve body by soldering these sensors. Another common problem with a run of more than 100,000 km is the “welding” of the bushing, and the destruction of the gearbox oil pump gears, which in turn led to scoring in the housing. Less often, problems arise with the gearshift control unit (25-30 thousand rubles).
Shocks when starting, stopping or switching are the “sore” of most second-generation Mercedes MLs. Changing the software of the gearbox and engine control unit helps to cure the disease, followed by synchronization of the blocks. The cost of such a procedure is about 6-8 thousand rubles.
From time to time there are cases of failure of the gearbox front axle. The cost of its restoration is about 40,000 rubles. Less often there is a need to replace the front cardan shaft. We also have to deal with the wear of the transfer case chain, which will be indicated by cod and rattle under load. The cost of the chain is about 5-6 thousand rubles, and the work to replace it is about 2-3 thousand rubles. If the razdatka buzzes, then about 40-45 thousand rubles will have to be paid for its bulkhead.
Chassis
Racks and bushings of the stabilizer roll stability serve about 60-80 thousand km. Weak spot in the front lower control arms - rear silent block. Replacement of the lever is provided only in the assembly. The cost of the original lever is about 22-24 thousand rubles, the analogue is from 2 to 8 thousand rubles. After 50-70 thousand km, the rear ones often begin to creak ball joints and they show no signs of wear. An attempt to drive grease under the ball boot with a syringe rarely succeeds, the ball will have to be replaced. The cost of the original ball is about 10-16 thousand rubles, the analogue is about 2-4 thousand rubles. Shock absorbers of a conventional spring suspension go more than 100-150 thousand km. Wheel bearings also live that long: 8-10 thousand rubles plus 1.5-2 thousand rubles for a replacement.
Pneumocylinders AirMatic air suspension do not differ in durability - a resource in the region of 80-120 thousand km. The cost of a new original air spring in specialized services is about 60-70 thousand rubles for the front, and 30-40 thousand rubles for the rear. Analogues are cheaper: about 20 thousand rubles and 11 thousand rubles, respectively. For many, over time, knocks appear in the right front of the air suspension, which disappear when the Sport mode is turned on. Often knocks do not go away even after replacing the air strut. Get rid of extraneous sounds often helps the banal broach of the bolts of the suspension arms or the nuts of the shock absorber rod to top support racks. If the knocks remain, then the whole thing is in the AirMatic suspension control unit (about 30,000 rubles).
Over time, the steering ML begins to knock. In most cases, the cause lies in the wear of the outboard bearing or steering cardan. The cost of eliminating the cause in an ordinary car service is low, about 4-7 thousand rubles, in authorized services it is more expensive - about 15 thousand rubles. With a run of more than 100-150 thousand km, sometimes there are problems with the steering rack. The cost of a new rail for officials is about 110-160 thousand rubles. There are also cases of failure of the power steering pump on pre-styling copies. The cost of a new original pump is about 30,000 rubles, an analogue is about 10,000 rubles.
Body and interior
Mercedes ML body, in best traditions German quality, has good paintwork and not prone to corrosion. A chrome package, on the other hand, can bloom in just a few winters. Mirror elements and LED lights daylight often become the prey of "car robbers".
There are cases of skew of the tailgate due to the destruction of the screws holding the door hinge. At the same time, when driving through irregularities, a roar appears. After 100,000 km, problems arise with the fifth door lock due to a breakdown of the mechanism or software “glitches”. In winter, the key to open the tailgate often sticks.
There are frequent problems with door locks, aggravated in winter time. A little help to extend the life of the castle preventive measures such as lubricating moving parts. Often, the closing of the door lock is prevented by a breaking and flying rubber band, inside which the lock rod runs. The cost of a new gum is about 1,000 rubles. Another equally common reason: the destruction of the spring in the lock. A repair kit is available to replace broken springs. AT last resort You have to change the lock itself. Official services ask for a new lock about 15 thousand rubles and 5 thousand rubles for work. Additional problems adds and system keyless entry Keyless Go. Due to loss of tightness special coating on the inside of the handle, moisture gets inside and oxidation occurs electrical contacts, which leads to crashes. The cost of a new pen is about 4-5 thousand rubles.
Seals lose their seal over time. rear lights which allows moisture to enter the trunk. In the right niche there is a rear block SAM, which water procedures are contraindicated. The electrical board oxidizes, and all kinds of "glitches" of electricians appear. The cost of the new unit is about 20 thousand rubles.
Salon ML is assembled from quality materials, and therefore crickets are here a rarity. Exception: luggage cover and rear seat backrest. On some instances, there is abrasion of the leather of the steering wheel. Under the mats, in the legs, there are electronic control units for various systems. Often in winter, melted snow from the rugs falls on the floor and further into blocks that are not airtight. Electrical boards oxidize and numerous problems appear. The cost of a new block is about 20,000 rubles.
Problems with proper functioning air conditioner associated with "glitches" in software KLA control unit. After the update, the climate performance is restored. Less often you have to change the block itself - about 46-50 thousand rubles.
Conclusion
Mercedes-Benz ML W164 actually proved to be a little more reliable than its predecessor. It is gratifying that the manufacturer tried to solve design flaws in individual units and assemblies. Unfortunately, a lot of problems arise with the electrician. And the cost of individual parts and work exceeds all reasonable limits.
Mercedes-Benz ML 2005–2011
Mercedes-Benz ML 2005–2011
Second Mercedes-Benz generation ML (W164) appeared at the beginning of 2005, replacing the model with index 163 on the assembly line. Instead of a frame structure, the car tried on a load-bearing body, in the suspension the torsion bars gave way to a spring two-lever front and a four-lever rear, and the wheelbase increased from 2820 to 2915 mm. And the standard one is, in fact, a crossover. It has permanent all-wheel drive, and the 4-ETS (Four Electronic Traction Support) system, like in the previous M-class, slows down spinning wheels. However, an off-road Pro Off-Road package was offered for the ML, including air suspension, a 2-speed transfer case, and center and axle locks. rear differential. With such an arsenal, he becomes a professional "rogue".
The geography of Mercedes-Benz ML is wide: there are both dealer cars and copies brought from America and Europe on the market. And any of the options can be safely considered as a purchase.
Engine
At first, the Mercedes-Benz ML was equipped with a 3.5-liter V6 petrol (272 hp) and a 5-liter V8 (306 hp). Turbodiesels were represented by a 3.0-liter V6 (190 and 224 hp) and a 4-liter V8 (306 hp). After restyling, the petrol V8 increased in volume to 5.5 liters (388 hp).
The base V6 3.5 l (M272) is the most massive and most problematic. Chronic sore - premature wear of the ceramic-metal gear (4200 rubles), leading balance shaft. Because of this, not only did the gas distribution phases “leave”, but the chips also got into the oil pump (7500 rubles), disabling it. Repairs are made with the removal of the engine and are expensive - from 70,000 rubles. At the same time, the service will probably offer to replace the valve timing adjustment clutches (21,000 rubles) and the timing chain. Be sure to agree - they will not live long either.
At the same time, on a run of 50-80 thousand km, the plastic swirl flaps of the intake manifold jammed, because of which it was necessary to change it entirely (29,000 rubles). Note that on post-styling machines, these shortcomings have already been eliminated.
But the old V8 of the E113 series, inherited from its predecessor, is simply unkillable. What can not be said about its 5.5-liter successor - for 50-90 thousand km you have to update the balance shaft, the replacement of which is no more expensive than that of the V6, since the engine is not dismantled for this.
The common rail diesel is generally reliable. Early cars to 150 thousand km sinned with exhaust manifold wear. Apparently, the material of this unit was chosen incorrectly and the metal from its inner surface “crumbled”, and the wear products, getting into the turbine, “killed” it. It's a shame - after all, under normal conditions, the resource of the Garret turbocharger (from 128,000 rubles) is 350 thousand km. Glow plugs must be changed carefully - due to the “sticking” of the thread, the head of the block can be damaged.
Transmission
Buyers of Mercedes-Benz ML will not have to bother with the choice of gearbox - all cars come with a 7-speed "automatic". The valve body often caused trouble, the solenoids of the control valves (4500 rubles each) of which failed by 100 thousand km. The box began to twitch and stutter during acceleration. If the disease is started, then soon the clutch pack will also “infect”. After 150 thousand, the oil pump is usually surrendered (15,000 rubles), the “automatic” selector refuses to switch, does not withstand the heat test the electronic unit ECM control (30,000 rubles). But all these defects, except for one - leaks in the cooling tubes of the "machine" - were eliminated after restyling.
The Pro Off-Road transmission is durable. The transfer case, as well as the "automatic", usually withstands 200 thousand km. Sometimes, before this period, the chain is stretched (9500 rubles) and the bearings begin to buzz. However, the soundtrack can also come from an outboard bearing, which dealers change along with the driveshaft (40,000 rubles). In specialized technical centers, the bearing can be replaced separately for 6500 rubles. After 150 thousand km, you have to change the front gearbox (43,000 rubles), the imminent death of which will be announced by hum and vibration.
Chassis and body
The spring suspension of the standard Mercedes-Benz ML is as strong as tank armor. The first in the front suspension for 60–90 thousand km are the stabilizer struts (1,500 rubles each). And only to 120-150 thousand km comes the turn of shock absorbers (10,800 rubles each) and lower arms(3500 rubles each), which become unusable due to the wear of their silent blocks. Rear suspension elements are even more reliable and last one and a half times longer on average. The only exceptions are shock absorbers (8500 rubles each), nursing an average of 100-130 thousand km.
In steering, after 100 thousand km, traction is changed (2300 rubles each). The rail takes care of 200 thousand km, but it can begin to leak much earlier than this period - it is eliminated by installing oil seals and seals from the repair kit (from 1000 rubles). And if it starts to tap, first of all check the steering shaft cardan (8000 rubles). But the power steering pumps (22,000 rubles) at first often changed under warranty. When replacing, it is advisable to update the tank, the filter mesh of which quickly clogs.
Airmatic air suspension is more finicky and expensive. Pneumocylinders rarely withstand more than 120-140 thousand km, but they are not cheap: the front ones are assembled with shock absorbers - 52,000 rubles each, and the rear ones - 14,000 rubles each. To prolong their life, it is advisable to rinse the cylinders with each wash. And if the car, when driving over bumps, starts to publish extraneous knocks, check the fastening of the front pneumatic elements to the racks - the fasteners weaken over time and require a banal broach.
The body is distinguished by heroic resistance to corrosion, and the paintwork is durable. Even chrome parts do not lose their gloss for many years. The main thing is that a car handicraftly restored after an accident is not sold to you under the guise of a worthy copy.
But the electrician with age presents unpleasant surprises: there are interruptions in the operation of climate control, the heater motor torments with serenades, air damper servos begin to live their own lives (8 pieces, 3500 rubles each), buggy sound signal and buttons on the steering wheel, a CD player swallows discs ... And the treatment is by no means cheap.
Modification
For almost all of their models Mercedes-Benz offers charged versions of AMG. And the M-class is no exception. Moreover, it should be noted that from the point of view of the margin of safety and durability, these modifications are preferable to civilian ML. After all, in the manufacture of these machines, more stringent quality control is applied. The engines are assembled by hand - each has a personal stamp of the master, who gives the motor almost lifetime warranty. And automatic 7-speed transmissions are brought up and refined to “digest” higher torque. Externally, the ML 63 AMG is distinguished by other bumpers and aerodynamic body kit around the perimeter of the body. Under the hood is a gasoline 6.2-liter V8 equipped with a compressor. The motor develops 510 hp. and 630 Nm, which allows you to accelerate a heavy SUV to 100 km / h in just 5.0 s, and maximum speed electronically limited to 250 km/h. By the way, the V8 does not suffer from a lack of appetite at all.
restyling
In 2008, the Mercedes-Benz ML underwent a restyling, which most noticeably affected its appearance. There have been no radical changes in the interior, except for the appearance of improved finishing materials. An updated car is most easily recognized by its headlights, internal bottom corners which are now omitted, modified front bumper, in which a different form of foglights are integrated, as well as an updated radiator grille. Behind stand out new led lights. There are few technical innovations for Russian-spec machines. Yes, in motor range instead of the 5-liter V8 (M113), a power unit appeared with the same number of cylinders with a volume of 5.5 liters and a power of 388 hp. And the turbodiesel 4-liter "eight" after 2008 left the engine line.
Verdict
Sergei Fedorov, editor:
About a car like the Mercedes-Benz ML, they usually say: well tailored and tightly sewn. Even at a respectable age, he can boast of a respectable appearance, and on the highway, refined driving performance and handling, and also conquers with excellent cross-country ability on the road. But for everything in this life you have to pay. And even though a used M L is several times cheaper than a new one, we do not recommend buying it with the last money. Since its maintenance, even on a specialized "gray" service, is not available to call the language. It's a Mercedes! To minimize future expenses in the maintenance of an SUV stuffed with electronics, we recommend stopping at diesel modification ML 320 CDI younger than 2008.
01.05.2017
The second generation of the popular M-class SUV from the German car brand Mercedes-Benz. The three-beam star on the hood has always caused a special thrill among most motorists, but not everyone can afford a new car of this class. At the moment, prices for a used Mercedes ML in a 164 body have become more affordable, thanks to which motorists, for whom status and prestige play an important role, can fulfill their old dream. When buying a car at the age of 7-10 years, you need to be aware that such an acquisition is fraught with additional costs. And, here's what they are, and what you should pay attention to when choosing a Mercedes ML (W164) with a range of secondary market, I will tell in this article.
A bit of history:
Work on the development of the Mercedes ML (W164) began back in 1999 and lasted 6 years. Steve Mattin worked on the car design project under the strict guidance of Peter Pfeiffer for more than 2 years. Testing of the prototype was carried out during 2003 - 2004 and ended in early 2005. The debut of the Mercedes ML (W164) took place in 2005 on international motor show in North America. In April of the same year, mass production. The car was assembled in the USA at the Chrysler plant located in Tuscaloosa (Alabama).
The novelty was built on common platform with the GL-class, thanks to which it was possible to increase the dimensions of the body and wheelbase, compared with its predecessor (W163). In 2008, a restyled version of the car was presented to the public at the New York Auto Show. The main changes affected the front and rear bumpers, optics and grille ( it has been increased in size and equipped with chrome inserts along the edges). The changes also affected the lineup, albeit slightly: updated diesel model ML 420 CDI, ML 280 CDI renamed to ML 300 CDI, ML 320 CDI to ML 350 CDI, and ML 420 CDI became known as ML 450 CDI. In 2009, the new ML 450 Hybrid SUV was introduced at the New York Auto Show. The production of the second generation of the M-class lasted 6 years and ended in 2011, and was replaced by a car Mercedes-Benz series W166.
Advantages and disadvantages of Mercedes ML (W164) with mileage
The body of the Mercedes ML (W164) has practically no weaknesses- he is not afraid of corrosion, but only on condition that the car was not restored after an accident. And, here, chrome elements do not tolerate the harsh realities of our winters and quickly become cloudy, after which they begin to bloom. When inspecting the car, be sure to check the tailgate, on most copies it is skewed ( the screws holding the door hinge are broken). Also, there may be problems with door locks ( breakdown of the mechanism, failures in the keyless access software "Keyless Go"). If there is moisture in the trunk, the problem most likely lies in the worn lamp seals. If you do not pay attention to this for a long time, over time, problems with the block will begin. SAM, since its electronic board is located in the right niche of the trunk.
Engine
Depending on the engine size of the Mercedes ML (W164), the corresponding index was assigned: gasoline - 3.5-ML350 (272 hp), 5.0-ML500 (308 hp), 5.5-ML550 (388 hp) 6, 2-ML 63 AMG (510 hp); diesel - 3.0-ML280 CDI, ML320 CDI (190 and 224 hp) since 2009 ML300 CDI (190 and 204 hp) ML350 CDI (224 hp), 4.0-ML420 CDI (306 hp).
Petrol
Most often in the secondary market there is a 3.5-liter gasoline power unit. Operating experience has shown that the engine is generally reliable, but, nevertheless, some shortcomings in it have been identified. As a rule, problems begin after the first 100,000 runs. The most common drawback is the wear of the cermet sprockets of the balance shaft. In the presence of a breakdown, in most cases, the error “ check engine". Also, a signal about the presence of a problem will be the “dieselization” of the motor, vibrations and metallic ringing when starting a cold engine. Another problem with characteristic symptoms is the stretching of the timing chain, this happens on a run of 100-150 thousand km.
Replacing the chain and shaft sprockets is a rather laborious process ( The motor must be removed to do the job.), because of which, the cost of work is quite high ( 1500-3000 c.u.). It is this fact that makes many owners get rid of the car at the first alarm bells ( Before buying, be sure to conduct a complete engine diagnostics). When performing repairs, it is advisable to immediately replace the chain damper, the magnets of the camshaft adjustment mechanism and the oil pump, so as not to pay twice for the removal and installation of the power unit. Often, owners of cars with a 5.5 engine (388 hp) also face the same problems, however, in this case, removing the engine is not required to eliminate most of the shortcomings, which significantly reduces the cost of repairs. Closer to a run of 150,000 km, many owners of the Mercedes ML (W164) have to change the exhaust manifold due to problems with the vacuum rods of the adjustable dampers ( on copies after 2007 release, this problem was fixed). A signal about the presence of problems will be walking speeds at idle.
All gasoline engines suffer from oil leakage, most often leaks appear on the plastic plugs of the cylinder head. Also, on cars with a mileage of more than 100,000 km, oil smudges can be found at the junction of the filter housing and the oil cooler heat exchanger due to a leaky seal. Owners of pre-styling cars often encountered such a problem as the “hanging” of the plastic swirl flaps of the intake manifold, which made it necessary to change the entire manifold. When using fuel Low quality catalysts die prematurely. The problem is solved by replacing them with flame arresters. The 5.0 engine has proven to be the most reliable, of its shortcomings, only high flow fuel and high transport tax, otherwise, there are practically no complaints about him. The car uses 2 batteries, they usually last about 5 years, to replace them you will have to pay almost 100 USD. for every. Once every 100,000 km, you have to change the starter retractor relay, they ask for 40-70 USD for a replacement. 
Diesel
On diesel engines during long trips, there is a decrease in the resource of the turbine (with normal operation the turbine takes care of up to 300,000 km). The main reason premature wear details lies in a not very good location (installed in a place where the highest temperature). The cost of the turbine will surprise even wealthy ML owners (about 2000 USD). Also, the rapid appearance of soot on exhaust manifold, which eventually begins to fall off and can "kill" the turbine. Significant costs may also be required if the glow plugs are not replaced in time. The fact is that when a candle burns out, it is unlikely that it will be possible to unscrew it naturally, and in order to replace them, you will have to remove the engine head and drill out the burnt candle.
If extraneous vibrations appear on the car, you need to pay attention to the crankshaft pulley clutch, it may have begun to fail. Also, due to the weight power units quite often you have to change the engine mounts. Diesel engines are equipped with the Common Rail system, which is an advantage and, at the same time, a disadvantage. The advantages include the efficiency of motors. The disadvantages are the sensitivity of the system to fuel quality. If not in your area good gas stations, you need to be prepared for frequent expensive repairs injectors, injection pump and EGR valve.
Transmission
Mercedes ML (W164) is equipped only with 7G-Tronic automatic transmission. automatic transmission has whole line problems, most often jerks when starting, accelerating and stopping. In most cases, flashing the transmission control unit helps to cope with this trouble. The valve body is not famous for its reliability either, its resource rarely exceeds 100,000 km. The main signal about the presence of a problem will be jerks during acceleration. If you do not contact the service in time, you will soon need to replace the clutch package. Replacing the valve body costs 1500 USD, but you can save money by buying a repair kit, in which case it will be possible to fix the problem for 500 USD. By 150,000 km of run, on most instances, the oil pump “dies”, if it is not replaced in time, then from high temperatures the ECM will fail. All these defects, except for one - the leaks of the "machine" cooling tubes, were eliminated after restyling.
Of the shortcomings of the system all-wheel drive problems with the front axle gearbox (100-150 thousand km) can be identified. The imminent death of the gearbox will be notified by vibrations and hum. To fix the breakdown, you will have to pay 500-700 USD. Not much lives longer and front cardan shaft. On a run of 120-170 thousand km ( depending on operating conditions) bearings begin to buzz. Often, the soundtrack can also come from the outboard bearing, which dealers, as a rule, change in tandem with the cardan shaft; for non-officials, the bearing can be changed separately. With the active use of the all-wheel drive system, the transfer case chain is stretched to 100,000 km. The disease is accompanied by cracking and grinding under stress. Transfer case, like automatic transmission, with correct operation do not deliver serious problems up to 200-250 thousand kilometers.
Features and disadvantages of the Mercedes ML suspension (W164)
Mercedes ML (W164) is presented on the market with two types of suspension - independent spring and air suspension. If we talk about which of the two types of running gear to give preference, then, in terms of reliability, it would be preferable regular suspension, for comfort — pneumatic. In a spring suspension, most often you have to change the stabilizer struts, about once every 60-70 thousand km. After 50,000 km, ball bearings begin to creak, and after 20-30 thousand km they have to be changed. Once every 100-120 thousand km, replacement is required: shock absorbers, wheel bearings and silent blocks of levers ( change assembly with levers). Rear suspension does not require intervention up to 150,000 km, only shock absorbers can be an exception ( their resource rarely exceeds 130,000 km).
Air suspension repairs will have to be done every 80-100 thousand km. The cost of one original front pneumocylinder is about 1000 USD, the rear is about 500 USD. If, in time, you do not change worn air bellows, this will negatively affect the life of the compressor, the replacement of which costs 2000-3000 USD. To check the condition of the pneuma, raise the machine to the maximum level and leave it in this position for half an hour ( the machine must not lower even one mm.).
Often, when driving on a rough road, extraneous knocks are heard from the suspension, check the fastening of the front pneumatic elements to the racks - the fasteners weaken over time and require a banal broach. steering rack generally reliable and able to last up to 200,000 km without repair, but there were cases when it started to flow at a range of 100-120 thousand km ( eliminated by replacing seals and seals). Weak points in the steering are: thrust ( go up to 90-110 thousand km) and the steering shaft cardan. Also, there is a complaint about the reliability of the power steering pump, when replacing the pump, it is recommended to change the tank as well, since the filter mesh quickly clogs in it. The braking system is reliable, but, due to the considerable weight of the car, brake pads wear out quickly enough (30-35 thousand km).
Salon
The quality of finishing materials leaves an ambiguous impression. The plastic from which the central panel and other interior elements are made is of high quality and retains its original appearance for a long time. And, here, the seat trim does not correspond to the class of the car, the fact is that the seats are made of eco-leather, which cracks and begins to climb by 100,000 km. As for the electrics, over the years, it begins to present unpleasant surprises, such as malfunctions in the climate control ( “buggy” electronic damper servos), sound signal and standard audio system ( does not return disks). Eliminating even minor problems in electronics is not cheap. 
Outcome:
Mercedes ML (W164) is generally a fairly reliable car, but copies made after 2009 are considered less problematic. Unfortunately, air suspension presents a lot of problems, and the cost of individual spare parts and work exceeds all reasonable limits.
Advantages:
- Comfort suspension.
- High quality paint finish.
- Four-wheel drive.
Flaws:
- High repair cost.
- Small air suspension resource.
- Unreliable transmission.
advanced car model Mercedes ML W164 was discontinued a few years ago. However, those copies of this model that appeared on the market much earlier cost more than two new Dusters. Therefore, now we will figure out whether it is worth giving crazy money for a used Mercedes ML.
The Mercedes W164 body is characterized by the so-called exemplary survivability. Its outer surface is covered with high quality paint and varnish, such a paintwork is durable and long lasting. Metal, as is typical for Mercedes, is also durable and properly processed, therefore, the owner of this model can forget about the word “corrosion” for a long time. Even the chrome from the outside looks representative, of course, the chrome on older specimens loses its gloss a little, but this is all a matter of life. All in all, Mercedes ML body deserves respect.
The interior of the car is no less attractive. So, you need to try hard so that at least somehow the interior trim is frayed, because it is made of reliable and resistant materials. Creaking in the cabin can only curtain the trunk and back rear seats And then, after a long time. The interior is durable, so only the look of the wooden finish worsens - cracks form on the varnish surface.
A sore subject is only the electronics installed in the cabin. For cars that were produced for the first time, there are sometimes interruptions in the functioning of the climate control system. The driver needs to either reflash or install another KLA control unit, which, by the way, is not cheap - about 1000 euros. In addition, after several years of operation, the heater motor, as well as servos, begins to "jump" air dampers. Replacing these parts will cost the owner of the car about a thousand euros.
After some time, you may notice that the audio system can be “greedy” at times - it does not give away discs. Therefore, you will have to install a brand new CD changer. Quite often, by pressing the buttons located on the steering wheel, the sound signal stops responding, and therefore it is necessary to install a new steering column wiring cable.
The real scourge for drivers is oxidized electronic boards. At first glance, a minor nuisance, which consists in the deteriorated quality of the tightness of the rubber seal on the rear right lamp, can turn into either a simply unexpectedly extinguished brake light or a damaged rear block of the SAM information processing system.
Equally unimportant is the reputation of the front SAM units installed in the space under the front passenger seats. As soon as a small amount of moisture gets there, instrument backlight failures immediately begin to occur and that's it. electronic devices located in the front of the passenger compartment may turn off. And new such SAM blocks cost around 400 euros.
Unlike the surface of the body, the outer handle driver's door fairly easy to corrode. Poor quality contacts cause the operation of the optional Keyless Go system to deteriorate. In most cases, after a few years you have to change and door locks because the springs break in them.
Due to software failures, the electric lock on the trunk begins to act up, and after a few more years the plastic structure can completely collapse. Around the same period, many begin to notice failures in the tailgate servo, which are “cured” as a result of recalibration.
But the biggest problem should be expected in about eight years. Exactly then Mercedes owner ML may be surprised by the "behavior" of the ignition switch, which will not respond to the transponder key and, as a result, simply will not start the engine.
Motors in Mercedes ML
The most popular model is considered to be the gasoline "six" M272, which has a volume of 3.5 liters. It is she who constitutes a significant part of all automotive market. Such a machine is characterized as the most problematic. In vehicles that have not undergone restyling, plastic swirl flaps are jammed, after which you have to purchase a new one. intake manifold. But for newer machines (released after 2007), this defect has been fixed.
The car uses 2 batteries, costing 55 and 70 euros. They are usually enough for about 5 years, they provide power to all the electronics in the cabin. The Mercedes ML has a fairly reliable generator, it can easily work out 250,000 km, the starter solenoid relay may break after about 100,000 km. To change it you will need 45 euros.
However, the sore point of this motor is hidden in the ceramic-metal gear of the balance shaft drive. Its teeth sometimes wear out so much that the valve timing shifts, and chips with crumbs adversely affect the functioning oil pump, the cost of which is approximately equal to 170 euros.
When purchasing a used car, you should pay attention to the presence of "diesel" tapping, as well as to the correct operation of the motor. Do this Mercedes ML test it is necessary, otherwise you will have to fork out for its repair, which involves the mandatory removal of the engine, which is about 2,500 euros. At the same time, it is possible to install new clutch adjusting the valve timing and a drive chain with dampers and tensioners, which will stretch evenly over time.
The few owners of ML with a V8 engine of the M273 series should not relax too much. They also expect problems with gears. Its only advantage is that there is no need to remove the engine when replacing the balance shaft.
most reliable model is the "eight" M113. It can be compared with a tank, but such a "rarity" is very rare. Therefore, connoisseurs of reliability should consider, as an option, the diesel "six" OM642. Behind her wheel, one can face a rather serious problem only when driving a pre-styling version, which was released no later than 2007.
The inner surface of these cars is made of erroneously selected material. In addition, after about 150 thousand kilometers, the welds begin to crumble very quickly. Metal chips enter the turbine, as a result of which it stops its work.
Transmission
One thing pleases: you don’t have to rack your brains with the choice of the type of gearbox. Indeed, today there is no alternative to the 7-speed automatic Mercedes G-tronic 722.9. It was created in 2005 and even then had a large number of minor flaws. The ISM module is experiencing faults that prevent the selector from being switched. The main disadvantage is a weak electronic board Siemens control ECM. The latter is not able to withstand roasting in a special oil box over a long period. In this regard, a temperature of 130 degrees is considered fatal for her.
The valve body, combined with the ECU into one system, is also not famous for its reliability, because control solenoids become out of service over time. As a result, the clutch packs are disabled. Exactly the same consequences can occur due to incorrect operation an oil pump whose gears are deformed after crossing the mark of 150,000 kilometers.
However, all the problems described above often concern only those cars that were produced before 2007. In other models, only one drawback is manifested - in the places of rolling, the cooling tube of the "machine" flows. But the box itself has the ability to nurse about two hundred thousand kilometers without supernatural effort.
Approximately the same amount can last transfer case. But occasionally there is another breakdown after every hundred thousand kilometers. May be observed strong grinding, which occurs under the influence of a load from stretched chain, as well as beeps after speeding up, if the planetary gear bearings are already worn out. The hum is usually caused by outboard bearing cardan shaft, which changes along with the cardan. Replacing the gearbox is mandatory if you feel vibrations generated in the front gearbox.
The disadvantages do not end there in the Mercedes ML. Many car owners complain about uncharacteristic sounds in the steering system. For instances that are more than eight years old, it is better to immediately replace the power steering pumps, as well as the reservoir. Such measures are carried out for the purpose of prevention, because the filter mesh becomes clogged after a few years and quickly fails.
As for the steering rack, it rarely breaks, but it can leak. This shortcoming is corrected by using the original set of seals with stuffing boxes. The play in the steering shaft cardan shafts should be checked after a noticeable knock appears when the steering wheel is turned.
Car suspension
In the suspension of a car that has traveled at least seventy thousand kilometers, the stabilizer strut usually breaks first. Then the tie rods begin to give up (after about 100,000 km), as well as rear shock absorbers. In addition, you may have to spend the money needed to replace the front shock absorbers and at the same time the lower arms, in which silent blocks are torn along the inner race.
This is where the problems with the spring suspension end, which is not typical for the rather capricious pneumatic Airmatic. Her worries are just beginning. During the general washing of the vehicle, the air bellows should be washed every time. Otherwise, with constant movement, they will be erased to holes. However, it is worth remembering that even with proper care, pneumatic parts cannot last longer than 120,000 kilometers.
