BMW X3 Service & Repair Manual: Final-drive gear oils for bmw m1 motorsport coup

In the BMW M1, the final drive is integrated into the manual transmission and is lubricated by the same oil.

The following oil specifications apply: During the breaking-in phase or after replacing the final drive (the first 1, 000 km (approx. 620 miles), use of the following oils is approved:

After this period, only manual-transmission gear oils that comply with specification SAE 80 MIL-L-2105 A or API-GL 4 may be used.

These manual-transmission gear oils are available from the parts sales department:

NOTE: Oil-change intervals and rules to be followed when breaking can be found in the maintenance documentation or the Repair Instructions of the model in question.

General information about final-drive transmission oils

Final-drive and hypoid transmission oil must fulfil the following requirements for handling high loads as arise at the tooth flanks of the hypoid gear:

• high load-carrying capacity
• high degree of immunity from seizure
• good protection against wear
• optimum frictional behavior and temperature stability
• compatibility with sealing materials
• resistance to ageing

A brand-name hypoid transmission oil already possesses these and other characteristics thanks to its high concentration of EP agents (EP = Extreme Pressure).

Oil additives

All final drives are designed in such a way that there is absolutely no need to use oil additives. BMW is totally against the use of such additives. We will also accept no liability for any consequences resulting from the use of additives.

OUTPUT SHAFTS

The joints of the output shafts are lubricated for life and therefore maintenance-free. If repairs are carried out, the amount of joint grease required is enclosed in the "Repair kit, gaiter".

WHEEL BEARINGS

See 2.0 APPROVED HIGH TEMPERATURE MULTI-PURPOSE GREASE .

GREASE FOR FLANGE NUT AND INPUT FLANGE, GLUE FOR THREADS OF FLANGE NUT

The following grease should be used for greasing the contact surfaces of the flange nut to the bearing inner ring and to the insert nut, and for greasing the face of the drive flange.

The Drei Bond glue is to be used for the threads of the flange nut.

TRANSMISSION OIL FOR ELECTRIC VEHICLES