BMW X5: Regulator

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).

Fig. 40: Inserting Screwdriver Between Cover And Threaded Pin

Bosch:

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

Fig. 41: Identifying Controller Switch And Contact Screws

Bosch:

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

Fig. 42: Identifying Contact Surfaces Of Slip Rings

Bosch:

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

Fig. 43: Installing Controller Switch

Valeo:

Slacken nut (1).

Slacken nut (2).

Release screws (3).

Release cover (4).

Fig. 44: Identifying Controller Switch And Contact Screws

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).

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