1.0 GENERAL INFORMATION ON AUTOMATIC TRANSMISSION FLUIDS
Automatic Transmission Fluid was developed especially for automatic transmissions. It requires additives which are carefully matched with each other, a high viscosity index and a solidification point below -40 ºF/-40ºC.
Friction behavior of Automatic Transmission Fluid in plate-type clutches under very different operating conditions is extremely important. Other important factors are:
2.0 OIL ADDITIVES
Automatic transmissions are designed so that oil additives are not necessary. BMW disapproves the use of any oil additives and cannot accept the liability for any consequential damage which results from using oil additives.
BMW X3 Service & Repair Manual > Microfilter: Replacing microfilter for interior ventilation
IMPORTANT:
Risk of damage!
A/C system must not be operated without the prescribed filter element.
Note on cleaning:
Spray microfilter housing from inside with BMW pollen filter housing cleaner* (observe instructions for use).
Comply WITH NOTES AND INSTRUCTIONS ON HANDLING CLEANING AGEN ...