Do-it-yourself automatic transmission repair opel astra

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 Opel Astra H automatic transmission is repaired in Moscow, and after washing and drying of 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 the repaired Opel Astra H 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 Astra H mountings and auxiliary transmission service systems are replaced. In addition, during installation, preliminary adjustments of Astra H are made to the external part of the control system.

Video (click to play).

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.

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Since an automatic transmission has a more complex design than a mechanical one, it fails faster than the latter. It may need a major overhaul after 300 thousand kilometers for the Opel car of the best models and after 150-200 kilometers if it is a budget model.

Car automatic transmission Opel astra the Opel concern has been producing for several years. Its assembly is maximally debugged and of very high quality, and the design of the box is thought out in detail. But even that doesn't save Automatic transmission from breakdowns. If the car already has a high mileage, then vibration, various noises, jerky movement may appear, and also untimely operation appears when switching speeds. In addition, the service life of the automatic transmission is strongly influenced by the operation of the car, in which the instructions for its use are not followed, and poor maintenance.

If the above defects appear, it is necessary to carry out repair of an automatic transmission, with its dismantling, disassembly and troubleshooting. If the critical wear of any parts of the car is determined, then they will have to be replaced. For any degree of automatic transmission repair, oil seals and seals, friction discs must be replaced. In addition, dismantling of the torque converter, as well as inspection of all its parts and assemblies, must be carried out without fail.This is necessary in order to assess their condition and select new necessary parts and components.

If the repair is carried out in specialized centers for the maintenance and repair of the Opel Astra, then at the end of the inspection you should receive a statement indicating all the work required, as well as the necessary components. The statement is signed by the owner of the car and is the basis for ordering the required parts. As soon as all the ordered parts and components, of which there may be a lot, arrive at the service center, its employees will proceed to the direct repair of the car. Both parts and components come from the Opel Astra manufacturer. Despite the fact that such an option for organizing repairs makes it more expensive and time-consuming, the services go to this, as it increases the quality of the repair.

The automatic transmission Opel Astra, in addition to the mechanism itself, also has a control system, which in turn consists of electronic control in the form of a processor and actuators. When repair work is carried out, all components of the control system are subject to careful inspection. Computer diagnostics of this system is mandatory, and parts that require replacement are identified. It is the good work of the electromechanical drive unit that will make the transitions smooth, and the gearbox response speed fast.

It often happens that the final cost of the repair turns out to be higher than the estimated one before the start of the work. This is due to the fact that during the repair hidden faults are revealed. Without the elimination of such malfunctions, the operation of such a complex device as an automatic transmission is often simply impossible.

Very often, the repair of the Opel Astra automatic transmission turns out to be part of such a long work as the overhaul of the entire car. Such repairs will cost a lot. However, attempts to save money by contacting specialists who make repairs with improvised means or in other ways that are far from professional methods can be even more expensive.

A real, guaranteed high-quality automatic transmission repair can only be carried out by specially trained personnel using branded equipment and using high-quality tools.

Opel is a German car manufacturer affiliated with General Motors. Opel has been making cars for over a century. In its cars, Opel uses the proven automatic transmissions of the companies specializing in them. Most of the transmissions are reliable and their repair is well studied by workshop specialists around the world.

Since 2006, the Opel Astra has been equipped with an automatic transmission 6T40. The 6T40 is a six-speed automatic transmission manufactured by General Motors. This transmission, called HydroMatic, is used in all- and front-wheel drive vehicles with engines up to three liters.

The E in these transmissions stands for electronic control. 6 is the number of stages, and the T40 marking is used to determine the engine configuration and torque.

Oil - only synthetic for automatic transmission Opel Astra, brand Dextron-4. Automatic transmission oil Opel Astra, it is better to change every 40,000 kilometers and more often check for transparency and the absence of debris.

Oil filter automatic transmission Astra without metal mesh, disposable, can not be washed. Changed twice a year with every oil change.

Transmissions of Astra cars are very reliable and unpretentious, Opel automatic transmission repairs are rarely required.

Astra automatic transmission clutches are changed as a set after operation on burnt oil. Oil seals and gaskets are traditionally changed during major repairs. Typically, their kits include both the required O-rings and pump seals.

The rubber of the pistons of the automatic transmission Astra in the conditions of the Russian winter dubs and loses its properties.

The solenoids and torque converters of the Astra automatic transmission do not live very long due to the slip mode.

One of the weak points of the Astra automatic transmission oil pump is its sleeve. It is subject to gradual destruction due to vibration and wear of the torque converter. As a result, the pump performance drops and some parts of the Astra automatic transmission may begin to experience oil starvation. All bushings can suffer from abnormal vibrations of the Astra automatic transmission. After reaching a certain amount of wear, they begin to leak oil. In this case, the solenoids of the automatic transmission Astra will open to full, and the pump will work at the power limit, trying to maintain normal pressure in the box. This, in turn, leads to the fact that dirty oil in the Astra automatic transmission under enormous pressure will constantly be driven through the box, abrasively treating some of its parts, while other parts will completely lose oil. The clutches of the Astra automatic transmission without oil will begin to slip and burn, contaminating the oil even more. Astra automatic transmission bushings are changed only as a set, and the sooner, the better.

In the Astra automatic transmission, until 2010, one of the clutch drums suffered from a break in the retaining ring, until the drum design was redone.

The first releases of the Astra automatic transmission contained an unsuccessful wave-shaped spring, which, when destroyed, damaged the bushings of the reactor sun. The problem arose from vibrations and aggressive operation of the gas pedal. When driving without minor repairs and replacement of the spring, replacement of the planet itself and the drum was soon required. If you tighten this moment too, pieces of the planet destroyed the Astra automatic transmission in a completely unpredictable manner.

The planetary row on old models consisted of an Astra automatic transmission of four satellites and wore out quickly. Nowadays a five-stellite one is installed.

One of the diseases of the automatic transmission Astra is cracks in the cooling tubes from sudden changes in temperature. Without replacing the cooling tubes, oil begins to leave the cooling system, which leads to dangerous overheating of the box.

The solenoid block of the Astra automatic transmission changes quite often. When replacing them, it is necessary to diagnose whether there are problems with oil pressure. Otherwise, they will not work for a long time (at standard pressure, they develop their resource right before our eyes, opening to full). The wear of the bushings and rings is worth looking at.

Hall sensors often cannot work normally due to the extreme settings of modern boxes. High temperature conditions and dirty oil will destroy them. The first problems with the valve body usually end in the loss of gears from the fourth and higher. The main symptom is jerks and jerks when starting to move. Sometimes this behavior of the box can be associated with a break in the wiring.

Also, such a symptom may be associated with excessive depletion of the torque converter control channels on the hydraulic plate. With such a breakdown, it is easier to change the valve body assembly, because the repair work will lie in an area close to neurosurgery (complex and precise operations on the human brain). Only very experienced and intelligent craftsmen can take on them.

It is better to repair the torque converter itself with the replacement of friction discs at 120,000 kilometers, until their wear has led to more serious problems.

Opel cars should not be overloaded with fast acceleration and when starting from a standstill. The automatic transmission is configured in such a way as not to spare the box, but to give the driver maximum power. The machines of the last years of release are tuned more carefully and use their resource more correctly. For lovers of aggressive driving or for those who wish to operate the car for many years, it is recommended to install an additional cooling radiator and even an additional fine line filter on the automatic transmission.

Cars Zafira and Insignia from Opel are equipped with a six-speed transmission TF-80SC from the manufacturer Aisin. Used for front wheel drive vehicles with engines up to four liters. The box began to run in cars of the Volvo concern since the beginning of the 2000s.

After the elimination of childhood diseases, the transmission of Zafir and Insignia joined the list of legendary unkillable transmissions. The main goal of the company was to prove that not only Toyota cars have eternal and reliable transmissions. Which they managed to do. Along the way, they provided good fuel economy and acceleration characteristics, ensuring the highest possible efficiency. And they managed to do all this by fitting this box into the engine compartment, taking up as much space as the "mechanics" takes. Some design solutions have provided very fast gear changes, making them so smooth that they are almost invisible. What made transmissions of this type the main competitors of preselective gearboxes, brought the automatic transmission back to the market as a promising development.

Automatic transmission Zafira and Insignia is not only well-designed, but also assembled only from reliable materials. Now it was a good old reliable automatic transmission, which did not care about overheating and dirty oil. Consumption and speed characteristics are nailed to modern machines.

There are not so many weaknesses in the Zafira and Insignia automatic transmissions. The traditional weak point for six-speed transmissions is the torque converter. The manufacturers of this automatic transmission still install only one friction lining. But the torque converter lock-up settings also work like on old cars, not using it too often.

The electronic control unit program is more gentle and allows the driver to force the accelerator pedal. On heavy vehicles, the driver will still be able to overload the box by making the torque converter clutch slip and transfer the torque from the engine directly. As an additional protection, the electronics of this box will block the torque converter earlier and delay gear changes if the oil temperature rises above 129 ° C.

After such operating modes, the package of clutches of the fourth, fifth and sixth gears is the first to burn. The clutches soaked in burnt oil for this box are real poison. It is better to change them as a set, at the same time changing the brake band and pistons. Even though it won't come cheap.

The robust torque converter friction lining contaminates the oil heavily with its dust. To replace it, the torque converter has to be cut. Without replacing it, huge damage from dirty oil will be inflicted on the valve body. The aluminum from which it is made will literally be eaten by the oil, which has acquired abrasive properties due to pieces of metal. Its damage is not restored and will lead to a chain of very sad events associated with oil starvation and abnormal pressure in the box. Also, the stove needs to be cleaned regularly with every repair.

Solenoids reach their end of life after about 150,000 kilometers.

Most of the overhauls consist of cleaning the valve body and replacing the torque converter lining. As consumables, oil seals, gaskets, pistons, oil filter and clutches are changed if at least one of the kits is burnt out.

The oil is considered insane (from overhaul to overhaul). But this overhaul box will not take much longer if the oil is changed every 60,000 kilometers. An interesting filter that can only be changed when the box is disassembled. To facilitate and extend the life of the automatic transmission, it is recommended to install an external fine filter in the service. It helps keep the oil clean and reduces abrasion. Usually these filters have a metal mesh. They are washed and used several times. In cases associated with the combustion of clutches, it will not be possible to wash such a filter - it will be filled with adhesive residues from the clutches. It is better to wash such filters every 10,000 kilometers and inspect them at the same time. The presence of various types of debris can help diagnose what is failing.

Repair of burst cooling pipes is also waiting for the driver who operated the car in winter temperature extremes.

If the pump has been running for some time after the bushing is worn out, then it makes sense to replace its cover.

The valve bodies were developed individually for each machine, their control programs are different, and they have a different price. When battery valves are worn out and delays when switching on, they are changed as a set. Iron is generally quite reliable. On powerful engines, there are problems with the differential, their splines are torn off.

The Vectra car from Opel was equipped with an AW55-50SN. This is a five-speed transmission from Aisin to front-wheel drive vehicles with engines up to 3 liters.

A typical illness of the Vectra transmission of the first releases was the ingress of antifreeze into the transmission fluid. After getting rid of the Vectra transmission from this defect, the transmission has become very reliable. But various manufacturers, adjusting and programming this transmission for their cars, often made mistakes in the settings of the valve body and the cooling system.

New Opel Vectra with automatic transmission AW55-50SN

Hydraulic blocks of the Vectra automatic transmission were problematic for a long time, until the last modification. After 2004, the Vectra automatic transmissions require only major repairs and routine cleaning, and in case of repair they are easily restored. The reason for the premature failure of the Vectra automatic transmission is insufficient oil pressure. Dirty oil and overheating often damage the valves and solenoids in the Vectra automatic transmission. Plungers wedge and oil in the Vectra automatic transmission may not reach the clutch packs and the torque converter lockup in sufficient volume. The first symptom of such a nuisance in the Vectra automatic transmission is usually jerks and jerks when switching between second and third gear. The reason for this is the failure of one of the solenoids, and jerks quickly kill the brake band, leading to a whole series of breakdowns in the automatic transmission. Therefore, it is better to clean the valve body and replace failed solenoids as part of a major overhaul with a mileage of over 150,000 kilometers. If this is not done, dirty oil can destroy the body of the hydraulic plate of the Vectra automatic transmission itself, and then only its replacement will help.

The hardware of this box is very reliable and rarely needs repair.

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Replacing the cooling tubes after long-term operation in winter conditions is also typical for these machines.

Opel Corsa was equipped with a four-speed transmission from Aisin. This transmission was designed for front wheel drive vehicles with engines up to 1.6 liters. Korsa received a very cheap and at the same time very reliable and unpretentious transmission. The main Corsa repair cases are the same as the transmissions described above. The weak points of the Korsa automatic transmission are the friction packages of 3-4 gears. The valve body is sensitive to dirty oil. The automatic transmission does not like operation in extreme temperature conditions and aggressive driving with slippage.

Modifications of this transmission under the AF17 brand were installed on the Astra. For Astra with AF17, the main weak points are the same as for Kors.

Automatic transmissions from Opel are technically complex and require an equipped box and trained experienced specialists to repair them. A sensible driver can monitor the level and condition of the oil and prevent the transmission from operating in extreme conditions. In this case, the automatic transmission from Opel will only require routine overhaul and it will last a very long time. In case of detection of abnormal operation of the automatic transmission, you should immediately contact the professionals and do not delay with this moment until the last.

Opel automatic transmission in the process of repair