BMW X3 Service & Repair Manual: 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).
Bosch:
Release screw (1) and nuts (2), remove cover.
Bosch:
Release screws and remove regulator switch (1) in direction of arrow.
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.
Valeo:
Slacken nut (1).
Slacken nut (2).
Release screws (3).
Release cover (4).
Valeo:
Release screws.
Remove regulator switch (1) towards top.
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.
Installation:
Fit new regulator (1) with attached mounting sleeve (2) or locked carbon brush.
Pull off mounting sleeve (2) and replace with cover (3).
Removing and installing/replacing alternator (N47 D20 O1)
Necessary preliminary work:
Read out the fault memory of the DDE control unit.
Switch off ignition.
Disconnect BATTERY EARTH LEAD .
Remove I ...
Other materials:
BMW X3 Service & Repair Manual > Starter lead: Replacing positive battery cable between starter motor, alternator and
positive battery connection point (N20)
Necessary preliminary tasks:
Switch off ignition.
Disconnect BATTERY NEGATIVE LEAD .
Remove INTAKE PLENUM .
REMOVE COVER FOR WINDSCREEN COWL PANEL .
Release screw (1).
Lever out cable clip (2).
Remove cover (3).
Fold back cover (1).
Release nut underneath. Remove positive ba ...
BMW X3 Owners Manual
BMW X3 Service & Repair Manual
