Cornering Lamp: Description and Operation: 358
HID Headlamps With Cornering Lamp
• Before working on HID headlamps with cornering lights, turn off the headlamps and turn the key to the 0 position (ignition off).
• 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 an HID lamp and cornering lamp (AFS = adaptive front lighting system) have the "Bi-Xenon" function.
HID lamps generate only the low beam 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 Low Beam Reflector Motor (V294) and Right Low Beam Reflector Motor (V295) ) 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".
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.
The "Guided Fault Finding" function is to be used for troubleshooting of the systems as described in => [ Vehicle Diagnosis, Testing and Information Systems ] Vehicle Diagnosis, Testing and Information Systems.
• The indicator light "lamp failure" lights up in instrument cluster when headlamp range control or AFS (Adaptive Frontlighting System) system malfunctions.
• After measures that could affect the headlamp adjustment, check the headlamp adjustment and adjust if necessary. Refer to => Maintenance Procedures.
1 High Intensity Gas Discharge Lamp (L13) and High Intensity Discharge Lamp (L14) ("Bi-Xenon")
• Type D3S, 35W
• Removing and Installing, refer to => [ HID Headlamp Bulb ] HID Headlamp Bulb.
2 Left Front Turn Signal Light (M5) and Right Front Turn Signal Light (M7)
• Removing and Installing, refer to => [ Front Turn Signals Lamps ] Front Turn Signals Lamps.
3 Cap
4 Left Headlamp Beam Adjustment Motor (V48) and Right Headlamp Beam Adjustment Motor (V49)
• Removing and Installing, refer to => [ Headlamp Beam Adjustment Motor ] Headlamp Beam Adjustment Motor.
5 Cap
6 Headlamp Range/Cornering Lamp Control Module (J745)
• Removing and Installing, refer to => [ Headlamp Range/Cornering Lamp Control Module J745 ] Headlamp Range/Cornering Lamp Control Module J745.
• Perform a basic setting on the headlamp if the headlamp range/cornering lamp control module (J745) was coded.
7 Upper Screw
• 2 Nm
8 Adjusting Bushings
• Correcting installation position of headlamp, refer to => [ Headlamps, Correcting Installation Position ] Headlamps, Correcting Installation Position.
9 Screws
• 6 Nm
10 Left Headlamp Power Output Stage (J667) or Right Headlamp Power Output Stage (J668)
• Removing and installing, refer to => [ HID Headlamp Control Module with Headlamp Power Output Stage ] HID Headlamp Control Module with Headlamp Power Output Stage.
• Code the cornering lamp and headlamp range control module (J745) and perform a basic setting on the headlamp after installing a new headlamp power output stage.
11 Screws
• 2 Nm
12 Screws
• 2 Nm
13 Left High-intensity Gas Discharge Lamp Control Module (J343) and Right High-intensity Gas Discharge Lamp Control Module (J344)
• Removing and Installing, refer to => [ HID Headlamp Control Module with Headlamp Power Output Stage ] HID Headlamp Control Module with Headlamp Power Output Stage.
14 Level Control System Sensor
• Removing and installing, refer to => [ Left Level Control System Sensor G76 ] Service and Repair.
15 Headlamp Bracket
• Removing and installing, refer to => [ Headlamp Bracket ] Headlamp Bracket.
16 Headlamp
• Removing and installing, refer to Refer to 357 => [ Headlamp ] Headlamp or 358 => [ Headlamp ] Headlamp.
• Correcting installation position of headlamp, refer to => [ Headlamps, Correcting Installation Position ] Headlamps, Correcting Installation Position.