E30 series BMW 3

since 1983-1994 of release

Repair and car operation



E30 BMW
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engine
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. Exhaust system
- 8. Transmissions
   + 8.1.2. Specifications
   - 8.2. Automatic transmission
      8.2.2. Specifications
      8.2.3. Diagnostics of automatic transmission
      8.2.4. Draft of the selector of transmission
      8.2.5. Kick-down-mode cable
      8.2.6. The blocking switch / switch of a signal of a backing
      8.2.7. Removal and transmission installation
      8.2.8. Epiploons of automatic transmission
      8.2.9. "Machine gun"
+ 9. Coupling
+ 10. Brake system
+ 11. Running gear
+ 12. Body
+ 13. Electric equipment
+ 14. Good advice



8.2. Automatic transmission

8.2.1. Introduction

GENERAL INFORMATION

On early models 3-speed automatic transmissions of the ZF 3HP 22 type are established.

Later models are completed with 4-speed automatic transmissions of the ZF 4HP EN type with electronic change of transfers.

Scheme of electronic control by automatic transmission of 4HP EN of 22 EH
1. Selector
2. The switch of programs (is on
tray of the tunnel of a body floor)
3. The kick-down-mode switch (under a pedal of a drive of a butterfly valve)
4. Control unit
5. Control lamp of refusal
6. Butterfly valve switch
7. Sensor of speed of a stream
8. Sensor of speed of rotation of the crankshaft
9. Case of valves

Automatic transmission of ZF 4HP 22
1. Hydrotransformer
2. Hydrotransformer case
3. Secondary shaft
4. Transmission case

The device of 4-speed automatic transmission of ZF 4HP 22 (the device of 3-speed transmission is similar)
1. Turbine
2. Case
3. Pump wheel
4. Starter
5. Epiploon
6. Coupling
7. Planetary gear wheels (1–3 transfers)
8. Planetary gear wheels (4 transfers)
9. Centrifugal regulator
10. Odnotstoronny coupling
11. Odnotstoronny coupling of 1 transfer
12. Odnotstoronny coupling 2передачи
13. Coupling
14. Pump of transmission liquid
15. Coupling
16. Leading disk
17. The blocking coupling

Transmission repair with dismantling is carried out only in car-care center.

It is independently possible to remove and establish transmission, and also to execute certain types of works on care, adjustment and diagnostics.

At replacement of transmission be guided by data on the plate strengthened on the left side of a case, directly behind the selector.

The plate with codes of identification of automatic transmission

Mechanism of manual control by automatic transmission
1. Pin
2. Screw
3. Button
4. Spring
5. Selector
6. Selector clamp
7. Lock
8. Mechanism case
9. Bottom lever
10. Plug
11. Axis
12. The lever of a drive of valves (on a transmission case)
13. Draft of the selector of transmission
14. Bracket
15. Sound-proof laying
16. Switch of the provisions Neutral/Park/backing and index of positions of the selector