BMW X5: Control Unit Box
REPLACING FAN FOR ELECTRONICS BOX
NOTE: Follow instructions for removing and installing electronic control units.
- Remove control unit.
- Read fault memory. Switch off ignition.
Unclip plug (1).
Remove DDE control unit (3).
Remove relay plug-in (5) towards top.
Release screws (4).
Lift out device carrier (2).
Unfasten plug connection and disconnect.
Release air cowl (1).
Remove electric fan (2) with bracket.
Add final details to vehicle.
Read fault memory.
Additional Fault Notes For Troubleshooting
Necessary preliminary tasks:
- Connect diagnosis system
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Fig. 79: Identifying DIS
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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
SEE MORE:
Starter Lead
REMOVING AND INSTALLING OR REPLACING BATTERY POSITIVE LEAD
(BETWEEN ALTERNATOR, STARTER MOTOR AND JUMP START CONNECTION POINT) (N62,
N62TU)
REFERENCE CHART
REMOVING AND INSTALLING OR REPLACING BATTERY POSITIVE LEAD
(BETWEEN ALTERNATOR, STARTER AND BATTERY POSITIVE TERMINAL) (N62)
REFERENCE CHART (N
General Information On Intelligent Battery Sensor (IBS)
WARNING: Danger of destruction in event of mechanical strain
Do not introduce any additional connections at the battery
negative
terminal.
Do not modify the grounding cable.
The grounding cable also serves to dissipate heat.
Do not establish any connection between the IBS and the sensor
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