Auto Manual of VW Passat B5

VW Passat
The maintenance instruction
1. Maintenance service
2. Engines
3. Cooling system
4. Fuel system
5. Engine management
6. An exhaust system
- 7. Transmission
    7.1.2. A coupling disk
    7.2. A mechanical transmission
   - 7.3. Automatic transmissions Adjustment of the mechanism of a gear change
      7.3.2. Completely an automatic transmission Adjustment of a cable of switching (an automatic transmission) All-wheel drive cars
8. A running gear
9. A steering
10. Brake system
11. A body
12. Heating, ventilation
13. An electric equipment


7.3.2. Completely an automatic transmission

On cars Passat automatic transmissions are established four- or five-step completely.

The automatic transmission consists of the hydrotransformer, planetary transfer, and also coupling and brakes with a hydraulic and electric drive.

The twisting moment from the engine to a transmission is transferred through the hydrotransformer which carries out function of liquid coupling and operates as automatic coupling, also provides twisting moment transfer at acceleration.

Management of an automatic transmission is made by the electronic control block. The electronic block on the basis of more extensive information sets an optimum operating mode of a transmission for everyone эксплуатационно го a mode. For management of a transmission there are no modes переключае мые manually, such as economic and sports. The block of management on the basis of the information on speed of movement of the car, pedal position акселерато ра, and also movement manners chooses corresponding transfer. Also at the moment of a gear change traffic conditions presence of the trailer and a wind influence.

If it is faulty any of gauges or magnetic the valve, there is a switching of the block of management by a transmission on emergency operation, and malfunction registers in memory of the block.

Towage of the car with an automatic transmission on wheels is authorised to be made on distance to 50 km with the maximum speed of 50 km/h. All-wheel drive cars with an automatic transmission are forbidden to be towed, having lifted one axis of the car.

The transmission represents very difficult unit and repair it it is necessary to make in специализирован ache a workshop. Before transmission repair it is necessary to define character of malfunction which can be electric, mechanical or hydraulic.

Do not remove a transmission from the car for repair before malfunction as the majority of tests demands that the transmission was in the car will not be professionally revealed.