VOLKSWAGEN GOLF IV

since 1997 of release

Repair and car operation

On cars the four-stage automatic transmission can be established. At a troganiye from a place the automatic transmission carries out coupling functions, and during movement carries out gear shifting.

The most important knots of an automatic transmission are the torque converter, planetary transfer and a hydraulic or electronic control unit transfers.

For gear shifting hydraulically operated multidisk brakes and frictional couplings are used.

The torque converter on the way of action reminds the hydraulic coupling. It provides possibility of a troganiye of the car from a place and switchings of separate steps without inclusion of mechanical coupling.

Management of gear shifting in an automatic transmission is carried out by the electronic actuation device.

Manual programs of movement, such as "economic" and "sports", it is not provided. Instead the actuation device distinguishes till speed from which the driver presses a pedal of the accelerator, what way of driving, sports or economic, he prefers. Thus the device operates respectively gear shifting. The gear shifting moments are affected also by movement conditions, for example, up or down from the mountain, and also existence of the trailer and a head wind.

At malfunctions of entrance signals or magnetic valves there is a switching on the emergency program of movement. The arisen malfunction also registers in memory of the device of accumulation of refusals. Further this information can be caused by means of the interrogating device.

For an assessment of operability of an automatic transmission and for the correct search of malfunctions experience with automatic transmissions of this kind and existence of the corresponding working skills is.

It is authorized to tow cars with an automatic transmission on distance to 50 km with the maximum speed of 50 km/h. In the presence of a platform for transportation of cars it is possible to lift only a forward part of the car. It is necessary to establish all-wheel drive cars on a platform four wheels.