Automatic transmission (AT). BMW the 5th E28/E34 series (from 1981 to 1993 of release)
Repair of BMW E28 and series E34 from 1981 to 1993
1. Cars of the BMW brand of 5-series
2. Engine
3. Cooling system
4. Power supply system
5. Ignition system
6. Control systems of the engine and decrease in toxicity of the fulfilled gases
7. System of production of the fulfilled gases
8. Coupling
9. Manual box of gear shifting (RKPP) and automatic transmission (AT)
9.1. Manual box of gear shifting (RKPP)
9.2. Automatic transmission (AT)
9.2.1. General information
9.2.2. General information about diagnostics of malfunctions
9.2.3. Adjustment of a drive of the lever of the selector
9.2.4. Adjustment of a cable of a drive of a butterfly valve
9.2.5. Check of work and replacement of the switch of permission of the start / switch of fires of a backing
9.2.6. Removal and installation of automatic transmission
9.2.7. Replacement of epiploons
9.2.8. Diagnostics of malfunctions of automatic transmission
10. Transmission line
11. Steering and suspension bracket
12. Brake system
13. Body
14. Control body sizes
15. Heater and air conditioner
16. System of onboard electric equipment
17. Routine maintenance of the car
18. Size table and adjusting data
19. Schematic electric circuits
20. Governing bodies and operation receptions
21. System of onboard diagnostics - a principle of functioning and codes of malfunctions


9.2. Automatic transmission (AT)

General information

Earlier models are equipped with 3-step automatic transmission (AT) of ZF 3HP 22. On latest models 4-step automatic transmission of ZF 4HP 22 or ZF 4HP EH with electronic control is used.

In view of complexity of mechanisms of coupling and control systems of hydraulics, and also due to the need of use of special tools for major maintenance of AT, this work usually is not made in house garage. Therefore the general descriptions of procedures of diagnostics of malfunctions, routine maintenance, adjustment, and also removal and transmission installation are included in this Chapter only.

If AT needs the general repair, it is necessary to provide its performance to specialists of dealer office of the BMW company or a workshop in repair of transmissions. With a view of economy of means you can make removal and installation of transmission is independent, however remember that the most part of tests on diagnostics of malfunctions demands, that transmission was in the car.

If you decided to replace transmission on new or restored, at first make sure, whether it suits your car. Identification шильдик transmissions is in the left part of a casing, directly behind the selector lever.

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9.2.1. General information