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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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.
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
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:
Fig. 151: Identifying AGM Battery
Introduction
In September 2002 so-called VRLA batteries, better known as AGM batteries ,
were introduced.
(VRLA stands for Valve Regulated Lead Acid, i.e. lead acid battery with pressure
relief valve; AGM stands for
A bsorbent G lass M at, i.e. absorbent glass f
REMOVING AND INSTALLING HOOD/BONNET
WARNING: Danger of injury!
Support engine hood in fully opened position with suitable apparatus.
IMPORTANT: Removal of the hood/bonnet must be carried out with the
assistance of a
second person.
NOTE: Carry over schematic representation to the relevant vehicle ty