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).
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Fig. 52: Identifying Protective Caps
Bosch
Release screw (1) and nuts (2), remove cover.
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Fig. 53: Identifying Screw And Nuts
Bosch
Release screws and remove regulator switch (1) in direction of arrow.
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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.
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Fig. 55: Identifying Regulator Switch Dimensions
Valeo
Slacken nut (1).
Slacken nut (2).
Release screws (3).
Release cover (4).
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Fig. 56: Identifying Nut, Screw And Cover
Valeo
Release screws.
Remove regulator switch (1) towards top.
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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.
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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).
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Fig. 59: Identifying Regulator, Mounting Sleeve And Cover
READ NEXT:
Starter With Mounting
REMOVING AND INSTALLING/REPLACING STARTER (N63)
Necessary preliminary work
Switch off ignition.
Disconnect BATTERY EARTH LEAD.
Remove right ENGINE SUPPORT ARM.
Release connector (1) and remove.
Replacing Battery Positive Lead Between Starter, Alternator And
Battery Positive Terminal (N63)
Necessary preliminary tasks
Read out fault memory of DME control unit
Turn off ignition
Disconnect BATTERY NEGATIVE LEAD
Remove RIGHT INTERCOOLER
Remove RIGHT INTAKE MANIFOLD
Open cover.
Relea
SEE MORE:
Checking Cylinder Head For Watertightness (N63)
Necessary preliminary work
Remove LEFT CYLINDER HEAD.
Remove RIGHT CYLINDER HEAD.
Remove ALL VALVES.
NOTE: Set of special tools 11 8 080 can be used for cylinder bank 1 to 4
and cylinder
bank 5 to 8.
Position special tool 11 8 081 on cylinder head.
Fig. 44: Positioning Special Tool 11 8 081 O
Removing And Installing/Replacing All Pressure Lines (N63)
Notes
WARNING: Electric fuel pump starts up automatically when door is
opened!
Disconnect BATTERY NEGATIVE TERMINAL (risk of fire due to shortcircuiting
on removal).
Observe warning on cylinder head cover.
WARNING: Carry out installation work on fuel system only with coolant
temperature
below 40Â
