HID Headlamps and Cornering Lamp, from MY 12

HID Headlamps and Cornering Lamp, from MY 12

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

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.


Observe the safety precautions for the HID headlamp bulb, refer to => [ HID Headlamp Usage and Safety Precautions ] HID Headlamp Usage and Safety Precautions.

General Information

HID headlamps and cornering 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.

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

Cornering lamps system performs the following functions:

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

• Cornering lamp bulb (static cornering lamp) at sharp curves (curve radius smaller than 500 m (0.3 mile)) or on turning-off and vehicles speeds below 40 km/h (25 mph)

DTC Recognition and Display

Automatic headlamp range control, cornering lamps and vehicle electrical system control (J519) are equipped with OBD.

Use the (Vehicle diagnostic tester) in "Guided Fault Finding".

• A malfunction in the range control or in the variable front lighting will be displayed in the instrument cluster by the lamp failure indicator lamp (K170).