BMW X3 Service & Repair Manual: Hypoid oils for final drive without disc-type limited-slip differential

BMW X3 Service & Repair Manual / Suspension / Operating fluids as of 11/2015 / Hypoid oils for final drive without disc-type limited-slip differential

Exception: E30/325iX differential with viscous self-locking differential.

Up to model year 07/2011:

Suspension

As of model year 07/2011:

Suspension

Suspension

NOTE: The above oils satisfy the demands required of lifetime oils.

Oil change intervals are given in the vehicle-specific inspection sheets.

Before opening the container, "mix" the transmission oil to distribute the additives evenly through the oil.

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.

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