BMW X3 (F25) Service & Repair Manual: Controller

BMW X3 (F25) Service & Repair Manual / Electrical / Controller

REPLACING VOLTAGE REGULATOR

Necessary preliminary tasks:

  • Switch off ignition
  • Disconnect battery negative lead
  • Notes on removing and installing electronic control units.
  • Remove alternator

Bosch:

Release protective caps (1).

Electrical

Bosch:

Release screw (1) and nuts (2), remove cover.

Electrical

Bosch:

Release screws and remove regulator switch (1) in direction of arrow.

Electrical

Bosch:

Installation:

Clean contact surfaces and check pretension of contact spring, replace regulator switch if necessary.

Measurement A = min. 5 mm.

Check collector ring for wear and recondition if necessary.

Electrical

Valeo:

Slacken nut (1).

Slacken nut (2).

Release screws (3).

Release cover (4).

Electrical

Valeo:

Release screws.

Remove regulator switch (1) towards top.

Electrical

Valeo:

Installation:

Clean contact surfaces and check pretension of contact spring, replace regulator switch if necessary.

Measurement A = min. 5 mm.

Check collector ring for wear and recondition if necessary.

Electrical

Installation:

Fit new regulator (1) with attached mounting sleeve (2) or locked carbon brush.

Pull off mounting sleeve (2) and replace with cover (3).

Electrical

Alternator with drive and mounting
...

Starter with mounting
...

Other materials:

BMW X3 (F25) Service & Repair Manual > Driveline+Axles: Approved final drive oils for front and rear axle final drives with and without limited slip or viscous coupling
2.0 APPROVED FINAL DRIVE OILS FOR FRONT AND REAR AXLE FINAL DRIVES WITH AND WITHOUT LIMITED SLIP OR VISCOUS COUPLING LIMITED SLIP DIFFERENTIALS With the introduction of the Z3 roadster a new synthetic final drive oil for all vehicles with a multi-plate limited-slip differential has been releas ...