Table of Contents

HID Headlamps with Cornering Lamp


Note usage and safety notes for gas discharge headlamps, refer to=> [ HID Headlamps, Usage and Safety Precautions ] Service Precautions.

• 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.

Refer to Self Study Program No. 297; The Touareg.

Refer to Self Study Program No. 298; The Touareg Electrical System.

Refer to Self Study Program No. 302; The Touareg suspension and All Wheel Drive (AWD) concept.

Refer to Self Study Program No. 335; Cornering lamp system.

Refer to.

General Description

Main headlamps with gas-discharge 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.

HID headlamps with cornering lights 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 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

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 main headlamps with HID lamps and cornering lamps.

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

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