BMW 3 series E30

Since 1983-1994 of release

Repair and car operation

+ 1. The maintenance instruction
+ 2. Maintenance service
+ 3. The engine
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. An 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. Draught of the selector of transmission
      8.2.5. A kick-down-mode cable
      8.2.6. The blocking switch / the switch of a signal of a backing
      8.2.7. Removal and transmission installation
      8.2.8. Epiploons of automatic transmission
      8.2.9. "Automatic machine"
+ 9. Coupling
+ 10. Brake system
+ 11. A running gear
+ 12. A body
+ 13. An electric equipment
+ 14. A good advice

8.2. Automatic transmission

8.2.1. Introduction

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

Later models are completed with 4-speed automatic transmissions of type ZF 4НР ЕН with electronic change of transfers.

The scheme of electronic control by automatic transmission 4НР ЕН 22 EH
1. The 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 throttle заслонки)
4. The management block
5. A control lamp of refusal
6. The switch throttle заслонки
7. The gauge of speed of a stream
8. The gauge of speed of rotation коленвала
9. The case of valves

Automatic transmission ZF 4НР 22
1. The hydrotransformer
2. Carter of the hydrotransformer
3. A secondary shaft
4. Carter of a transmission

The device of 4-speed automatic transmission ZF 4НР 22 (the device of 3-speed transmission is similar)
1. The turbine
2. The case
3. A pump wheel
4. Стартор
5. An epiploon
6. Coupling
7. Planetary gear wheels (1–3 transfers)
8. Planetary gear wheels (4 transfers)
9. A centrifugal regulator
10. Однотсторонняя муфта
11. Однотсторонняя муфта 1 transfers
12. Однотсторонняя муфта 2передачи
13. Coupling
14. The pump трансмиссионной liquids
15. Муфта
16. A leading disk
17. Blocking муфта

Repair of transmission with dismantling is carried out only in car-care centre.

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

At transmission replacement be guided by the data on the tablet strengthened on a left-hand side картера, directly behind the selector.

The tablet with codes of identification of automatic transmission

The mechanism of a hand control automatic transmission
1. A pin
2. The screw
3. The button
4. A spring
5. The selector
6. A selector clamp
7. A shutter
8. The mechanism case
9. The bottom lever
10. The plug
11. An axis
12. The lever of a drive of valves (on картере transmissions)
13. Draught of the selector of transmission
14. Скоба
15. A sound-proof lining
16. The switch of positions Neutral/Park/a backing and the index of positions of the selector

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