Lights

Mercedes-Benz M-Class / Mercedes-Benz M-Class Owners Manual / On-board computer and displays / Display messages / Lights

Display messages about LEDs:
This display message will only appear if all LEDs have failed.

Display messages	Possible causes/consequences and Solutions
	The left or right-hand cornering light is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The left or right-hand low-beam headlamp is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The left or right-hand trailer tail lamp is faulty. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The left or right-hand trailer turn signal lamp is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The trailer brake lamp is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The rear left-hand or rear right-hand turn signal is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The front left-hand or front right-hand turn signal is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The turn signal in the left-hand or right-hand exterior mirror is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The high-mounted brake lamp is faulty. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The left or right-hand brake lamp is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The left or right-hand high beam is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The license plate lamps are faulty. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The rear fog lamp is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The front left or front right parking or standing lamp is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The backup lamp is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The left or right front side marker lamp is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The left or right-hand tail lamp is defective. or The rear left or right side marker lamp is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The left or right-hand daytime running lamp is defective. – Check whether you are permitted to change the bulb yourself. or – Visit a qualified specialist workshop.
	The active light function is defective. – Visit a qualified specialist workshop.
	The exterior lighting is defective. – Visit a qualified specialist workshop.
	The light sensor is defective. – Visit a qualified specialist workshop.
	The lights are still switched on when you leave the vehicle. A warning tone also sounds. – Turn the light switch to or .
	Adaptive Highbeam Assist is faulty. – Visit a qualified specialist workshop.
	Adaptive Highbeam Assist is deactivated and temporarily inoperative. Possible causes are: - the windshield in the camera's field of vision is dirty. - visibility is impaired due to heavy rain, snow or fog. – Clean the windshield. If the system detects that the camera is fully functional again, the Adaptive Highbeam Assist Now Available display message is shown. Adaptive Highbeam Assist is operational again.

Lights

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