BMW 7 Series: Functions
Overview
The functions of the exterior lighting are integrated in the footwell module.
These lighting functions are:
- Side lights
- Low beam headlight
- High-beam headlight
- Headlight flasher
- Fog light
- Direction indicator light
- Hazard warning light
- Tail light/license plate light
- Dynamic brake light
- Reversing light
- Parking lights
- Welcome light
- Delayed switch-off home lights
- Daytime driving light.
The headlight lighting functions are powered via a headlight driver module or the footwell module.
The footwell module controls a constant brightness level for each headlight. This is achieved with a pulse-width regulated voltage supply. Voltage fluctuations in the vehicle electrical and bus systems are compensated for by the pulse width.
The headlight driver module receives the information on the voltage supply for its light source via the LIN bus.
NOTE: The LEDs, e.g. in the additional brake light, tail light or bi-xenon headlight are not controlled but rather activated at 100%pulse width.
In addition to the standard light functions, further functions for the exterior lighting are integrated in the footwell module:
- Dynamic beam throw adjustment system
- Lamp monitoring
- Cold monitoring with lights "OFF"
- Hot monitoring with lights "ON"
- Visual alarm/feedback
- Central locking system
- Antitheft alarm system
- Crash signal
- Special case at "Terminal 15 OFF"
- Emergency operating mode
- Adaptive headlight with
- Turning lights
- Adaptive headlight-range adjustment system.
READ NEXT:
Light Functions
Side Light, Low Beam and High Beam
The exterior lighting system is switched on via the light switch.
The following table shows the terminal setting for switching on the exterior
lighting.
LIGHT FUNCT
Low Beam Headlight
To switch on the low beam headlights, the light switch in the lights control
panel must be turned to low beam
headlight (switch position 2) When the low beam headlights are switched-on the
bi-xenon
Hazard Warning Lights
The hazard warning lights are switched on by pressing the hazard warning
switch. As a result, all direction
indicator lights are activated simultaneously and the indicator in the hazard
warning swit
SEE MORE:
Removing And Installing/Replacing Middle Pedestrian Protection Sensor
WARNING: Observe SAFETY INSTRUCTIONS for handling gas generators.
Incorrect handling can activate pedestrian protection and cause injury.
Necessary preliminary work
Disconnect BATTERY CABLE
Remove BASEPLATE FOR NUMBER PLATE
Remove ORNAMENTAL GRILLE IN BUMPER TRIM.
Release screws (1).
Tighteni
Replacing Complete Tail Panel
Read contents of BODY, GENERAL.
STRIP DOWN VEHICLE.
NOTE: Observe new procedure for bonding and riveting (REPAIR STAGE 2).
Operation is partially described on the left side. Right side identical.
Following new body parts are required (refer to Electronic Parts Catalogue -
EPC):
Rear panel
Follo
