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
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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 On Handling Wiring Harnesses And Cables
The following applies in general
To avoid damage, observe the following instructions:
Avoid compressive and tensile loads
To ensure professional repairs, perform repair work only with
BMW-approved or recommended special
tools and spare parts
Make sure cables are laid without kinks or abrasion
Steering Wheel Button Block
Button block for driving functions
The steering wheel contains a button block for the Dynamic Cruise Control (DCC)
or Active Cruise Control
(ACC) Stop&Go functions. The button block is located on the left-hand side of
the steering wheel.
Fig. 138: Identifying Steering Wheel Button Block For D
