HID Headlamps, From 12.06

HID Headlamps, From 12.06


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

• Always switch off headlamps with gas-discharge lamps and remove ignition key before working on headlamps.

• Automatic vertical headlamp aim control of headlamps with gas-discharge lamps has 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.

General Description

Main headlamps with gas-discharge lamps 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. If auxiliary high beam headlamp is installed, it can be adjusted separately.

North American Models

Low beam headlamp is generated by one light source:

• Left High Intensity Gas Discharge (HID) Lamp (L13) ("Bi-Xenon") and Right High Intensity Gas Discharge (HID) Lamp (L14) ("Bi-Xenon")

High beam headlamp is generated by one light source:

• Left High Intensity Gas Discharge (HID) Lamp (L13) ("Bi-Xenon") and Right High Intensity Gas Discharge (HID) Lamp (L14) ("Bi-Xenon")

High beam headlamp (flasher with ignition switched off) is generated by one light source:

• Left High Beam Headlamp (M30) and Right High Beam Headlamp (M32) (auxiliary high beam headlamp)

DTC Recognition and Display

Automatic vertical headlamp aim control and vehicle electrical system control are equipped with On Board Diagnostic (OBD) which assists troubleshooting of main headlamps with gas-discharge lamps.

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