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).
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Fig. 40: Inserting Screwdriver Between Cover And Threaded Pin
Bosch:
Release screw (1) and nuts (2), remove cover.
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Fig. 41: Identifying Controller Switch And Contact Screws
Bosch:
Release screw (1) and nuts (2), remove cover.
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Fig. 42: Identifying Contact Surfaces Of Slip Rings
Bosch:
Release screws and remove regulator switch (1) in direction of arrow.
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Fig. 43: Installing Controller Switch
Valeo:
Slacken nut (1).
Slacken nut (2).
Release screws (3).
Release cover (4).
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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).
READ NEXT:
Starter With Mounting
REMOVING AND INSTALLING/REPLACING STARTER MOTOR (N52, N52K, N51, N53,
N54)
IMPORTANT: Aluminum-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical
corrosion.
Starter Lead
REMOVING AND INSTALLING OR REPLACING BATTERY POSITIVE LEAD
(BETWEEN STARTER, ALTERNATOR AND BATTERY POSITIVE TERMINAL)
Necessary preliminary tasks:
Read out fault memory of DME control unit; if nece
Engine Wiring Loom
REPLACING WIRING HARNESS SECTION FOR ENGINE (N52K)
Special tools required:
24 2 390.
IMPORTANT: Read and comply with notes on protection against
electrostatic damage (ESD
protection)!
Necessary pr
SEE MORE:
Piezo Fuel Injectors
It is the outward-opening piezo-injector that renders possible spray-directed
direct injection and thus the overall
innovations of the N54 engine. Due to the fact that only this component ensures
that the injected fuel spray cone
remains stable, even under the prevailing influences of pressure and
Engine-Off / Coasting
Principle
Under certain conditions the engine is automatically
decoupled from the transmission in the D
selector lever position. The vehicle continues
traveling with the engine idling to reduce consumption.
Selector lever position D remains engaged.
This driving condition is referred to as
coastin
