Cornering Lamp: Description and Operation

HID Headlamp and Cornering Lamp

• Before working on HID headlamps and cornering lamps, always switch off headlamps and remove ignition key.

• Automatic Headlamp Range Control and cornering light in HID headlamps have On Board Diagnostics (OBD).

• Familiarity with the function and operation of the lighting system is essential in the event of customer complaints.

• Additional information:

Refer to the Owner's Manual.

General Description

Headlamps with HID lamps and cornering lamps (AFS = Adaptive Front lighting System) have Bi-Xenon function.

Gas discharge lamps generate only the low beam headlamp in standard Xenon headlamps. Bi-Xenon allows one gas-discharge lamp to generate low beam and high beam headlamp. For this purpose, an electro-mechanical adjuster ( Left Headlamp Reflector Adjustment Solenoid (N395) and Right Headlamp Reflector Adjustment Solenoid (N396) ) opens the dimmed region of low beam Headlamp when high beam function is operated and a high beam light emission results.

For this reason, the high beam is also adjusted automatically with the low beam on Bi-Xenon headlamps.

Headlamps with HID lamps and a cornering lamp do not have auxiliary high beams.

The cornering light system has the following functions:

• Swiveling low beams and high beams (dynamic cornering light) at vehicle speeds above 10 km/h (6 mph) and steering angle steer.

• Cornering lamp bulb (static cornering lamp) on tight curves (curve radius < 500 meters) or when turning and vehicle speeds under 50 km/h (31 mph).

DTC Recognition and Display

Automatic headlamp range control, cornering lamps and vehicle electrical system control are equipped with On Board Diagnostic (OBD) which assists troubleshooting of headlamps with HID lamps and cornering lamps.

For troubleshooting, use Vehicle Diagnostic, Testing and Information System (VAS 5051B) in operating mode "Guided Fault Finding".

• Malfunctions in the headlamp range control or AFS system are displayed in the instrument cluster with the lamp failure indicator lamp.