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
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Removing And Installing/Replacing Eccentric Shaft (N52K)
Special tools required:
11 4 481
Necessary preliminary tasks:
Remove cylinder head cover
Remove intermediate lever
If necessary, move eccentric shaft (1) on twin surface to minimum lift (2).
Fig. 218: Eccentric Shaft
NOTE: All bearing caps (1 and 2) of eccentric shaft are marked with
number
Battery Vapor Separator
REPLACING BATTERY NEGATIVE LEAD
WARNING: Observe safety instructions for handling vehicle battery.
Follow instructions for disconnecting and connecting battery.
IMPORTANT: Do not under any circumstances use force to pull/lever off
Intelligent Battery
Sensor (IBS).
Necessary preliminary tasks:
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