Car automatic transmission BMW 5 Series E28

General information about automatic transmission
Earlier models equipped with 3-speed automatic transmission (AT) ZF 3HP 22. The latest models use a 4-speed ZF 4HP 22 or ZF 4HP EH electronically controlled...

General information about troubleshooting
Automatic transmission failures can be caused by five main causes: engine inefficiency, misadjustments, hydraulic problems, mechanical failures, or...

Checking the operation and replacing the start permission switch / reversing light switch
If the engine starts not only in the positions "P" (parking) or "N" (neutral) selector lever, or the reverse lights do not light up when the selector lever is...

Removal and installation of automatic transmission
If your car's radio is equipped with an anti-theft system, make sure you have entered the correct code before disconnecting the battery. If, after connecting...

Replacement of oil seals
There are three oil seals on an automatic transmission—the rotary converter oil seal, the selector lever shaft oil seal, and the transmission output shaft oil...

Diagnostics of malfunctions of automatic transmission
In view of the complexity of the AT design, it will be difficult for an average amateur mechanic to accurately diagnose its failures and restore repairs. In...

Selector lever drive adjustment
Jack up the vehicle and place it securely on axle stands. On some models, you may have to remove the exhaust system (see chapter Exhaust system ) and a heat...

Throttle cable adjustment
1. Before starting the adjustment procedure described below, check the throttle cable adjustment at wide open throttle, and adjust if necessary (see chapter...