Indicator lamps

First read and observe the introductory information and safety warnings

Lit up	Possible cause	Correction
	There is a defective bulb in the vehicle's exterior lighting.	Change the defective bulb.

Several warning and indicator lamps will light up briefly when the ignition is switched on while the vehicle runs functional checks. They will switch off after a few seconds.

Monitoring of the light bulbs on the trailer

For vehicles with a factory-fitted towing bracket, the vehicle will also monitor certain bulbs on a trailer which has been connected properly via the trailer socket:

If a turn signal in the trailer fails, the indicator lamp ( or ) in the instrument cluster will flash twice as fast .

• Failure of all turn signals on one side.

• Failure of the tail light on one side (in some models, failure of the licence plate light).

• Failure of both brake lights.

Failure to observe the warning lamps and text messages could lead to your vehicle breaking down in traffic, accidents and serious injuries.

• Never ignore warning lamps and text messages.

• Stop the vehicle as soon as it is possible and safe to do so.

NOTICE

Failure to observe the warning lamps and text messages could lead to your vehicle being damaged.