REPAIR of automatic transmission
AUTOMATIC GEARBOXES
installation | buy | sale | diagnostics | replacement of automatic transmission
valve body repair | torque converter repair | ecu repair
automatic transmission oil change TOYOTA Land Cruiser Prado 120 2.7 3.0 3.4 4.0

Moscow city

Artem 8 965 126 13 83 Vadim 8 925 675 78 75

Full car diagnostics during repair - free of charge!

If you are the owner of a TOYOTA Land Cruiser Prado 120 with an "electronic" automatic transmission, it is possible after qualified diagnostics with professional equipment, reading the fault codes and deleting them from the electronic control unit (ECU), your repair will be limited to eliminating the malfunction in the electronic part of the control system responsible for the corresponding work Automatic transmission. Problems in the mechanical part of the TOYOTA Land Cruiser Prado 120 machine show themselves as a refusal to move the car forward or backward (intermittent or constant). We repair all types of automatic transmissions: Domestic, European, American, Asian (including China) production, cars, trucks and special vehicles.

The cost of repairing an automatic transmission TOYOTA Land Cruiser Prado 120:

The cost of spare parts for the repair of automatic transmission TOYOTA Land Cruiser Prado 120:

A complex of services for the repair of an automatic transmission of TOYOTA Land Cruiser Prado 120:

• Consultation by a repairman (by phone free of charge)
• Delivery of the car for repair (within the city of Moscow free of charge. From the Moscow region and other regions of the Russian Federation - by agreement)
• Comprehensive diagnostics of the electronic circuits of the car with professional equipment (determination of error codes for engine, automatic transmission, ABS, brake system; checking the electrical circuits of the car, checking the kinematic destruction, checking the oil pressure, checking the performance of the hydraulic system) - free of charge when repairing the automatic transmission
• Visual inspection, checking the integrity of the automatic box body
• Checking the transmission oil level and its content
• Opening the automatic transmission pallet (if necessary)
• Removing the automatic transmission from the car
• Dismantling, washing of parts and assemblies of automatic transmission
• Troubleshooting of the unit (the presence of the car owner is required)
• Coordination with the car owner of the cost of a complete repair and the date of completion of the repair of an automatic gearbox
• Receiving spare parts from the warehouse (repair kit, consumables, assemblies)
• Torque converter repair
• Valve body maintenance
• Repair of the electronic control unit (ECU)
• Assembly of automatic transmission
• Installing the box on the car
• Filling with gear oil
• Output diagnostics and test drive of the car

Warranty from 3 to 24 months or 60,000 km. mileage for automatic transmission repair work TOYOTA Land Cruiser Prado 120 and automatic transmissions.

Own spare parts warehouse. Everything you need to repair the TOYOTA Land Cruiser Prado 120 automatic transmission is available and on order from leading manufacturers. Housings, differentials, brake bands, solenoids, friction and steel discs, spacer kits, filters and more.

We have a fund remanufactured and new automatic transmission TOYOTA Land Cruiser Prado 120 (see article replacement)... If the car owner wishes, we can replace the faulty transmission with one that was moved from the exchange fund, which is often more economically expedient.

Automatic transmission diagram (example)

The petrol and diesel engine of the popular Toyota Land Cruiser Prado 120 off-road vehicle is equipped with a five-speed rear-wheel drive automatic transmission A750F, which replaced the A650E. The unit is distinguished by well-chosen gear ratios, an improved oil cooling and heating system, which ensures trouble-free operation under load. Dynamic acceleration (sport mode) is realized through a balanced connection of the valve body slip lock from third gear. Thanks to this technical solution, the MTO of the transmission is increased.

Features of using an automatic box

The main purpose of the automatic box installed on the Toyota Land Cruiser Prado 120 is to provide convenience to the driver in driving an SUV. When driving in any conditions, the gear selection is provided in automatic mode. The control unit analyzes the driving speed, the vehicle load, the position of the accelerator pedal and takes into account other factors to quickly engage the optimal gear ratio.

Thanks to the automatic transmission, the driver is completely focused on the road and does not concentrate on turning on the required speed. Automatic changeover is fast and without power dips. Efficient and rational distribution of engine power is manifested:

• dynamic acceleration at start;

• sharp acceleration to perform overtaking;
• confident overcoming of irregularities and obstacles in the event of movement over rough terrain.

By eliminating the driver's involvement in gear selection, the automatic transmission improves safety when maneuvering the car and provides passenger comfort on a long trip. The automatic transmission includes the gear ratios required in this situation and contributes to the operation of the engine at optimal speeds, increasing the service life. There are no mistakes made by inexperienced drivers on a manual transmission, which entail negative consequences for the elements of the chassis. The listed advantages are characteristic of a technically sound and serviced automatic transmission. Therefore, in case of malfunctions, immediately provide the SUV to specialists for diagnostics and repair.

Unit design and causes of breakdowns

A technologically advanced automatic transmission is a device that is complex in design and operation algorithm, therefore its price is higher than a mechanical unit. Automatic transmission Toyota Land Cruiser Prado 120 consists of mechanical and electronic parts. Digital sensors are connected to the electronic control module, according to the signals of which pulses are generated for the actuators. The mechanical part includes a torque converter, which performs the task of clutching and receiving torque from the crankshaft of the motor, as well as a planetary gearbox, which allows gears to be switched on with the required gear ratio.

The gearbox is filled with gear lubricant. The system pressure is supplied by an oil pump and maintained by centrifugal regulators and valves. To perform the assigned functions, the coordinated work of all the constituent elements of the unit is required. If one unit breaks down, the sequence of the algorithm is disrupted and an urgent qualified repair of the automatic transmission is required in a specialized workshop.

Breakdowns of the transmission, which is equipped with the Toyota Land Cruiser Prado 120 SUV, arise due to non-observance of the operating rules and violation of service intervals, as well as the use of low-quality (not certified) automatic transmission oil. Reduces the transmission resource when a car starts with slipping of the driving wheels, driving at maximum speed under full load and sloppy off-road driving, in which transmission units are hit. Overheating and failure of the planetary gear set and valve body is possible if the towing rules are violated.

It is possible to determine the malfunction due to which the automatic transmission is required to be replaced by typical features:

• hum and rattle in the area of ​​the operating transmission;
• jerks at the moment the gears are turned on and vibration from an operating gearbox;
• power dips when switching gear ratios;
• transition of the box to emergency mode or incorrect selection of speeds;
• incorrect inclusion of steps;

• lack of sharp acceleration;
• clutch slippage, due to which it is not possible to get the proper dynamics from the car;
• the appearance of an emulsion on the oil dipstick.

Comprehensive repair of an automatic transmission

During long-term operation of the Toyota Land Cruiser Prado 120 under load, friction discs, gears, bushings and other components are subject to natural wear. Diagnostics using modern equipment allows you to timely identify defects at the first stage, avoid costly repairs and prevent an emergency shutdown of the unit. Therefore, if you find typical symptoms, leave the car to professionals.

A workshop specializing in the repair of transmissions offers replacement of faulty units with used, but completely serviceable and reliable machines. Buying an automatic transmission, used and restored by our craftsmen, is a profitable offer, since the purchase of a new device requires a significant investment.

Thanks to the presence of our own warehouse, the sale of automatic transmissions, differentials, repair kits, brake bands, as well as solenoids, friction discs, filters and other nomenclature of components is organized. Comprehensive work on the restoration of the transmission includes:

• diagnostics for reading control side errors;
• dismantling the box from the car and partial disassembly of the unit;
• flushing and maintenance of components and assemblies;

• replacement of defective parts;
• restoration of the planetary gearbox performance;
• connecting a new control unit;
• replacement of filter elements, as well as worn out clutches;
• checking the condition and determining the resource of the solenoid bushings and, if necessary, installing new spare parts;

• repairing the oil pump that provides pressure in the system and filling the automatic transmission with oil.

Also, the damaged housing of the Toyota Land Cruiser Prado 120 box is being repaired. After the installation of the unit, adjustment operations are carried out. The mechanics perform all operations quickly and professionally. At the last stage, the car is tested by the test drive method. The correct operation of the automatic transmission in all modes is assessed. Owners of Toyota Land Cruiser Prado 120 can count on the advice of experienced specialists and assistance in the selection of original parts for the restoration of the automatic transmission.

Diagnostics and repair of automatic transmissions in Moscow is carried out according to technological schemes and at an affordable price. A guarantee is provided for the operations performed and installed spare parts. In case of automatic transmission malfunctions, determined by typical symptoms, use the services of experienced mechanics in a repair shop. Employees perfectly know the scheme of operation of electronic modules and mechanical assemblies, therefore they quickly eliminate problems of any complexity.

The main reason for the failure of the TOYOTA Land Cruiser Prado 120 hydraulic automatic transmissions is a valve body breakdown. More precisely, the failure of the solenoids (solenoid valves, which, in response to the computer's electrical impulse, open or close the channel in the hydraulic plate to control the flow of hydraulic fluid). Photos of the valve body and solenoids, below on the page:

The TOYOTA Land Cruiser Prado 120 automatic transmission is regularly repaired with a breakdown of the oil pump. This defect is manifested by a complete refusal to move the automatic transmission forward or backward. The reason for the failure of the oil pump, in most cases, is the aggressive driving of the car (sharp acceleration and braking). Photo example of a damaged and new oil pump:

If, when the car is moving, there are shocks when shifting gears of the TOYOTA Land Cruiser Prado 120 automatic transmission, you should pay attention to the operation of the overrunning clutch. It is the overrunning clutch that keeps the drive shaft from rotating in the opposite direction to reduce shock during gear changes and prevent engine braking. Photo example of a damaged and new overrunning clutch below.

Due to insufficient oil pressure inside the TOYOTA Land Cruiser Prado 120 automatic transmission, if the valve body and solenoids do not work properly, the K-2 drum almost always burns out (breaks the shaft sleeve). Photo example below.

A ready-made package of new parts for assembling a TOYOTA Land Cruiser Prado 120 automatic transmission: valve body, freewheel, oil pump, friction and steel discs, drum, differential and other details in the photos.

The gearbox repair shop is ready to carry out the following work:

• diagnostics of automatic transmission TOYOTA Land Cruiser Prado 120
• adaptation of electronic control unit of automatic transmission TOYOTA Land Cruiser Prado 120
• replacement of oil seals of the drive of the automatic transmission TOYOTA Land Cruiser Prado 120
• replacement and repair of an automatic transmission TOYOTA Land Cruiser Prado 120
• replacement and repair of automatic transmission TOYOTA Land Cruiser Prado 120
• body replacement, automatic transmission TOYOTA Land Cruiser Prado 120
• replacement of differential, automatic transmission TOYOTA Land Cruiser Prado 120
• replacement and repair of servos of automatic transmission TOYOTA Land Cruiser Prado 120
• oil change, automatic transmission TOYOTA Land Cruiser Prado 120
• replacement of transmission oil, automatic transmission TOYOTA Land Cruiser Prado 120
• replacement and repair of the planetary gear set, automatic transmission TOYOTA Land Cruiser Prado 120
• replacement and repair of the torque converter, automatic transmission TOYOTA Land Cruiser Prado 120
• valve body replacement and repair, automatic transmission TOYOTA Land Cruiser Prado 120
• replacement and repair of temperature sensors, electronic control module, stepper motors, automatic transmission lock valves TOYOTA Land Cruiser Prado 120
• rear oil seal and crankshaft bearing replacement TOYOTA Land Cruiser Prado 120
• oil pump oil seal replacement, automatic transmission TOYOTA Land Cruiser Prado 120
• replacement of control cables of automatic transmission TOYOTA Land Cruiser Prado 120
• replacement of solenoids, automatic transmission TOYOTA Land Cruiser Prado 120
• replacement of the pressure valve, automatic transmission TOYOTA Land Cruiser Prado 120
• replacement speed sensor automatic transmission TOYOTA Land Cruiser Prado 120
• electronic adaptation of automatic transmission TOYOTA Land Cruiser Prado 120
• repair of electronic control unit of automatic transmission TOYOTA Land Cruiser Prado 120
• repair (argon welding) of the body of the automatic transmission TOYOTA Land Cruiser Prado 120
• repair of the gear selector and the control unit of the automatic transmission TOYOTA Land Cruiser Prado 120
• buy automatic transmission TOYOTA Land Cruiser Prado 120
• buy spare parts automatic transmission TOYOTA Land Cruiser Prado 120
• sale automatic transmission TOYOTA Land Cruiser Prado 120

Call us to choose the time for diagnostics of the Toyota Land Cruiser Prado 120 automatic transmission and repair in a gearbox repair shop. An appointment in advance will allow you to find the most convenient solution, we are always ready to meet the wishes of the client.

In our specialized repair shops for the TOYOTA Land Cruiser Prado 120 automatic transmission, its high-quality service, diagnostics and repair are carried out. We offer an honest service for your repair.

Your presence is obligatory at all stages of diagnostics and repair of the TOYOTA Land Cruiser Prado 120 automatic transmission; all work and accessories are coordinated.

Overhaul period from 3 to 5 working days.

We work seven days a week.

We have a round-the-clock consultation line on the repair of the TOYOTA Land Cruiser Prado 120 automatic transmission (8 965 126 13 83) and free delivery for repairs by tow truck (8 926 167 15 40). A tow truck is provided free of charge for repairs (within the MKAD, outside the MKAD by agreement).

The cost of the overhaul of the TOYOTA Land Cruiser Prado 120 automatic transmission is 17,000 rubles (input and output diagnostics, removal and installation, disassembly and assembly, output adaptation of the electronic units of the car) + the cost of components.

Input diagnostics is carried out with the obligatory presence of the car owner within 30 - 40 minutes (inspection, removal of accumulated errors of the electronic control unit, checking the oil pressure on the solenoids, electronic adaptation of the ECU).

Removing the automatic transmission from the car, disassembly and troubleshooting takes place on the day of the call for repair.

The warranty for the repair of the TOYOTA Land Cruiser Prado 120 automatic transmission is from 3 to 24 months or 60,000 km of run.

Changing the oil in the prado 120 automatic transmission when operating a car off-road is done more often than when driving quietly on the highway. If you change the fluid regularly, then the car will serve the owner longer, and the cost of current repairs will not be sky-high. The price of the service at the service station is high, so it is cheaper in the Prado 120 4 liters to change the oil in the automatic transmission yourself.

When and why you need to change the oil

Every car owner is obliged to know when it is better to change the oil on the Prado 120 automatic transmission. The auto developer claims that the new car will cover 100,000 km without problems, and no repairs are needed. If you operate the car off-road, then the frequency of fluid replacement is 80,000 km. Experienced drivers of Toyota Land Cruiser Prado 120 advise changing the oil in the automatic transmission when driving on bad roads every 40,000 km.

If these requirements are ignored, then the box will break down, and a new "automatic" is expensive.

Inventory for changing the oil in the Toyota Prado 120

To change the lubricant, you need to prepare the inventory:

• container where the old liquid is drained;
• several rags;
• plastic containers (5 l);
• sharp thin knife;
• 10 and 17 socket wrenches with ratchet;
• a tube 2 m long with an inner diameter of 10 mm.

On the Prado 120, it is also impossible to replace the old oil in the automatic transmission without pliers, a pallet gasket, an oil filter for an automatic gearbox, and a sealant.

Partial oil change

In case of partial replacement, the old fluid is drained from the transmission pan, the transmission pan cover and filter are dismantled. All this is thoroughly cleaned; if necessary, a new oil filter is installed.

Then they mount everything in the reverse order, put a new pallet gasket or use a sealant. Then you need to fill in new grease (the engine is muffled) and set the oil level. Then the engine starts (on gasoline or diesel), and a certain amount of lubricant is added to bring its level to the maximum mark.

On an automatic transmission, check and top up the lubricating fluid according to the level when the engine is running.

Disadvantage of partial replacement: about half of the obsolete oily substance from the transmission will not merge and will remain in its working parts.

Complete oil change algorithm

Before starting a complete oil change in the Toyota Land Cruiser Prado 120 automatic transmission, it does not hurt to take a little ride. The engine and transmission will warm up and the old fluid will come out quickly as it becomes more fluid. Strictly follow the work procedure!

We install the car on the inspection pit. We find the drain plug, unscrew it. The spent liquid will flow out into the prepared container in 20 minutes. After that, we unscrew each bolt, dismantle the pallet cover. Make sure that the hot liquid does not get on the skin, otherwise there will be a burn.

We drain the obsolete grease from the pallet, then rinse it thoroughly and wipe it dry. On the sides of the pallet, we cut off the traces of the old hermetic composition, we clean all the areas where the sealant was.

We remove the old filter, put a new one. We mount a clean pallet, do not forget to put a new rubber gasket, treat it with a sealant. The plug of the hole through which the drain occurs is twisted. There is a control hole under the hood, into which we pour 6 liters of grease. Then we attach a flexible hose to the lower pipe of the heat exchanger, the end of which is lowered into the container for the old grease.

After that, we start the engine - let it work in parking mode. The grease will begin to spread through the system and about 5 liters of dark waste will flow out of the tube.

We pour in new transmission oil in the right amount. The complete process of replacing the transmission fluid will require somewhere between 11-16 liters of lubricant, so you should not save on an extra liter, otherwise we will not change the oil. Sometimes dark oil starts flowing from the tube again. Then we repeat the last stage several times until a light liquid flows.

We twist the filler plug, start the engine, warm it up, then turn on each transmission gear in turn. At the last stage of the process, we again check the transmission level with a dipstick, if there is a lack of fluid, add the required volume.

If you regularly check the lubrication level in the automatic transmission, then your favorite car will last a long time.

PRICES

In the event of a major overhaul, the gearbox is removed from the vehicle. At this stage, the mechanic carefully examines the condition of all systems serving the gearbox, power unit mounting supports, etc.

After dismantling from the car, the automatic transmission goes to the overhaul area. It should be noted that on this site, as well as on all previous ones, experienced craftsmen who have a higher technical education (engineering and physical) work. Here, the Toyota Land Cruiser Prado 120 automatic transmission is being repaired, and after washing and drying all parts, their fault detection is carried out, i.e. the possibility of further use of each part or the need for its replacement is determined.

If desired, any customer can be present both during the disassembly of the gearbox and during the fault detection of its parts. At the end of this procedure, a list of replacement parts is drawn up, which is then necessarily agreed with the customer. It should be especially noted that during a major overhaul, it is necessary, regardless of the state of the automatic transmission, to replace all seals and gaskets. The use of original spare parts only from manufacturers of gearboxes increases the service life of a repaired Toyota Land Cruiser Prado 120 automatic transmission, but leads to a significant increase in the cost of spare parts. To achieve the most optimal combination of price-quality ratio allows the use of aftermarket parts, i.e. companies specializing in the production of spare parts for automatic transmissions.

Installation is carried out taking into account all technical requirements. At this stage, the failed mounting elements and auxiliary transmission service systems are replaced. In addition, during installation, preliminary adjustments are made to the elements of the external part of the control system.

Output diagnostics and car break-in. They are carried out using the same techniques as the entrance diagnostics. In addition, all previously existing fault codes are erased from the memory of the control unit.

In our conditions, it is recommended to change the oil in the Prado automatic transmission every 60-80 thousand. km., but let's not forget about regular checking of the lubricant. If you drive mainly on the highway at a low speed, then the replacement can be carried out every 100 thousand km. In terms of service, the work will not be cheap, so let's figure out how to do it ourselves. Toyota Prado

Despite the fact that Toyota Prado has a fairly high ground clearance, it is better to replace it on a lift or a pit, not forgetting about its safety. For work we need:

• container for draining old oil
• rags
• ratchet with heads for 10 or 17 or similar keys
• laying the pallet of the automatic transmission of your Prado
• transmission oil
• filter
• sealant
• long hose with a diameter of 10 mm.

Detailed instructions on how to change the oil in Toyota Prado 120

First. Unscrew the drain plug of the automatic transmission crankcase, but do not forget to substitute a canister or other container for draining the used oil.

It will be around 11 liters. We are waiting for the oil to completely drain out of the box (it will take about 15-20 minutes), after which we proceed to dismantle the crankcase.

Second. Remove the pallet by unscrewing the bolts in a circle - some more oil may remain in it, so remove it carefully.

Third Wipe the inside of the pallet with rags and carefully cut off the old sealant.

Fourth. Further, if necessary, unscrew the bolts of the oil filter and replace it.
Fifth. After that, we install a new automatic transmission pan gasket, grease it with a little sealant on top and screw it into place.

Video oil change in automatic transmission Toyota Prado 120 body

Slowly pour six liters of oil into the upper hole. Then we remove the lower pipe of the heat exchanger and connect the hose to it. We insert the hose into the canister, then we start the car in the "P" mode. The transmission oil should flow through the hose into the canister. When 4-4.5 liters are typed, we turn off the car and add the same amount to the automatic transmission.

Detailed video instruction for oil change in automatic transmission TLK Prado 120

The capacity of a 4-speed automatic box is 10.9 liters, during replacement it will be necessary to drive around 16 liters.
Then close the filler plug and start the car again. To warm up the oil, you must switch the selector in all modes.