BMW X5: Troubleshooting
- Contents Of Engine Electrical System General
- Instructions For Removing And Installing Electronic Control Units
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Contents Of Engine Electrical System General
General Information
Working on ignition system
Removing and installing electronic control units
Welding work (overload protection of control units)
Disconnecting and connecting battery
Disconnec
Instructions For Removing And Installing Electronic Control Units
IMPORTANT:
Disconnecting the vehicle battery will cancel the fault memories
of control
units. Consequently, before disconnecting the car's battery, always
interrogate the fault memories. Invest
Ignition Wires, Spark Plugs
FIRING ORDER
Fig. 3: Firing Order (V8)
REPLACING ALL SPARK PLUGS (N62, N62TU)
Special tools required:
12 1 171
12 1 172
Necessary preliminary tasks:
Switch off ignition
Remove all IGNITION CO
SEE MORE:
Removing And Installing/Replacing Right Intermediate Levers (N62
From 9/03 And N62TU)
Special tools required:
11 9 470
11 9 472
11 9 473
11 9 474
11 9 475
11 9 480
11 9 490
(cylinder bank 1 to 4)
Removal of intermediate levers is described separately from installation.
Necessary preliminary tasks:
Remove servomotor from right eccentric shaft.
Remove ignition coils on cyl
Notes On Panorama Glass Roof (Initialization/Normalization/Learning Of
Characteristic Curve)
NOTE: Initialization comprises:
Normalization
Learning characteristic curve
The mechanical end positions are recorded and stored during normalization.
The characteristic curve is learned immediately after normalization.
When the characteristic curve is learned, the mechanical closing forces of
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