BMW 7 Owners & Service Manuals

BMW 7 Series: Regulator

REPLACING VOLTAGE REGULATOR

Necessary preliminary tasks

  • Switch off ignition
  • Disconnect battery negative lead
  • See NOTES/INFORMATION ON REMOVING AND INSTALLING CONTROL UNITS
  • Remove alternator

Bosch

Release protective caps (1).

Regulator
Fig. 52: Identifying Protective Caps

Bosch

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

Regulator
Fig. 53: Identifying Screw And Nuts

Bosch

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

Regulator
Fig. 54: Removing Regulator Switch

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.

Regulator
Fig. 55: Identifying Regulator Switch Dimensions

Valeo

Slacken nut (1).

Slacken nut (2).

Release screws (3).

Release cover (4).

Regulator
Fig. 56: Identifying Nut, Screw And Cover

Valeo

Release screws.

Remove regulator switch (1) towards top.

Regulator
Fig. 57: Locating Regulator Switch Screws

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.

Regulator
Fig. 58: Identifying Measurement A

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

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

Regulator
Fig. 59: Identifying Regulator, Mounting Sleeve And Cover

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