Oil specification: automatic transmission oil (ATF) with the designation Dexron II D, for example:
- Shall ATF Dexron II D-21-631;
- Mobil ATF 220 D-20104;
- Total Dexron II D-21298.
Contact your BMW dealer for the possibility of using other ATFs.
With the engine off, unscrew the expansion tank cap.
Start the engine and let it idle. Top up the oil level immediately to the lower MIN·mark -2-.
Attention: The operation of the hydraulic booster pump without oil is not allowed.
Slowly turn the steering wheel twice as far as it will go to the left and right.
Top up the oil level in the compensation tank again.
Stop the engine and check the oil level.
Top up the oil level to the MAX mark -1-. When replenishing the level, add oil in small portions. Filling volume of the system: 1.2 liters.
Close the expansion tank cap.
With cold oil (+20°C) its level in the tank should be between the MIN and MAX marks.