BMW 7 Series: Headlight Fogging Fault Pattern
NOTE: Certain weather conditions can lead to fogging on the inside of the headlight lens.
This is not necessarily a fault that requires replacement of the headlight.
- Permissible fogging. Headlight does not need to be replaced.
- Impermissible fogging. Replace the headlight.
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Fig. 42: Identifying Permissible And Impermissible Fogging
NOTES FOR REPLACING THE PROTECTIVE CAP OF THE HEADLIGHT
IMPORTANT: Risk of damage! Damaged seals on the protective caps will lead to moisture penetration into the headlight.
This will in turn cause porous cable insulations and malfunctioning of the headlight.
When working on the headlight system, check the protective cap seals.
Replace the protective cap in the event of damage! Example: screwed protective cap.
Seal (1) on protective cap (2).
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Fig. 43: Identifying Seal On Protective Cap
Example: latchable protective cap Seal (1) on protective cap (2).
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Fig. 44: Identifying Seal On Protective Cap
OVERVIEW OF HEADLIGHTS, FOG LIGHTS AND AUXILIARY TURN INDICATOR/TRIM
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Fig. 45: Identifying Headlights, Fog Lights And Auxiliary Turn Indicator/Trim
- Remove left headlight
- Remove left fog light
- Auxiliary turn indicator/trim, front left
READ NEXT:
Removing And Installing (Replacing) Left Headlight - Led
Technology
Remove FRONT BUMPER TRIM
Vehicles with auxiliary radiator:
Remove FRONT WHEEL ARCH COVER
Lever out expanding rivets (1) on engine compartment lid seal (2).
Fig. 46: Identifying Expanding Rivets
Removing And Installing/Replacing Left Headlight Vertical Aim
Adjuster
WARNING: Version with xenon headlights:
Danger to life due to high voltage!
Therefore disconnect all components from voltage supply before removal.
Work on the entire xenon lighting system (control u
Replacing Control Unit For Left Xenon Headlight
WARNING: Version with xenon lighting system: Danger to life due to high
voltage!
Therefore disconnect all components from voltage supply before removal.
Work on the entire xenon lighting system (ign
SEE MORE:
Notes/Information On Removing And Installing 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. Investigate stored faults and, once any
faults have been remedied, cancel the fault memory.
Control unit
Introduction
The BMW Universal Bluetooth HandsFree System (ULF) utilizes Bluetooth
wireless technology to enable
a wireless connection to be established between a Bluetooth enabled mobile
phone and the ULF Control
Module installed in the vehicle. The combination of these components results in
a new generation
