BMW X3 Service & Repair Manual: General information on automatic transmission fluids
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:
- Wear protection
- Oil film shear resistance
- Adhesive property
- Oxidation resistance
- Corrosion inhibition
- Sludge prevention
- Temperature-dependent viscosity changes
- Compatibility with sealing materials.
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.
Automatic transmission fluid for zf-transmission
GA8HP45Z / GA8HP50Z / GA8HP70Z / GA8HP90Z / GA8P70H / GA8P75H /
GA8HP75Z
14.0 AUTOMATIC TRANSMISSION FLUID FOR ZF-TRANSMISSION
GA8HP45Z / GA8HP50Z / GA8HP70Z / GA8HP90Z / GA8P70H / GA8P75H /
GA8HP75Z
NOTE:
The automati ...
Approved automatic transmission fluids for initial fillings and correcting
fluid levels
3.0 APPROVED AUTOMATIC TRANSMISSION FLUIDS FOR INITIAL
FILLINGS AND CORRECTING FLUID LEVELS ...
Other materials:
BMW X3 Service & Repair Manual > Front axle gearbox: Removing and installing/replacing front axle differential
IMPORTANT:
For the initial filling of a new replacement front axle differential, the gearbox is filled with 600
ml oil! If oil is filled up to the lower edge of the oil filler opening, the gearbox would be
overfilled and in rare individual cases oil could emerge from the ventilation opening ...