BMW X3 (F25) Service & Repair Manual: Switches and relays
REPLACING POWER DISTRIBUTION MODULE (N20, N52T, N55)
Necessary preliminary tasks:
- Switch off ignition.
- Disconnect BATTERY NEGATIVE LEAD .
- Remove left service flap on cowl panel cover.
Unlock and pull off all connectors (1) from power distribution module.
Remove cover (2).
Release nut beneath it and set positive battery cable aside.
Release lock (3).
Feed out and remove power distribution module in upward direction.

Reassemble the vehicle.
Other materials:
BMW X3 (F25) Service & Repair Manual > Transmission: 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 automatic transmissions have a life-time oil filling. These transmissions
require no oil change for their entire service life.
The approved lifetime fluid ...


