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:
Drive readiness
Principle
Turning on drive-ready state corresponds to
starting the engine.
General information
Some functions, such as DSC Dynamic Stability
Control, can only be used with drive-ready state
switched on.
Safety information
DANGER
If the exhaust pipe is blocked or ventilation is insufficient,
harmful
Oil Supply - System Functions
The oil condition sensor reports the engine oil level and engine oil quality
back to the DME control unit. A
temperature sensor in the oil condition sensor indicates the engine oil
temperature. The engine oil temperature is
used together with the coolant temperature to calculate the engine tempera
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