Indicator lamp

First read and observe the introductory information and safety warnings

Lit up	Possible cause	Solution
	There is a defective bulb in the vehicle's exterior lighting (excluding bend lightinga)) b).	Change the defective bulb.

Goes out	Possible cause	Solution
	A trailer turn signal or all trailer lights have stopped working.	Change the defective bulb or check the trailer lights.

Several warning and indicator lamps will light up briefly as a functional check when the ignition is switched on. 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 trailer turn signal or all the trailer lights fail, the indicator lamp in the instrument cluster will go out .

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 illuminated warning lamps and text messages can lead to your vehicle breaking down in traffic, and can cause accident and serious injury.

• Never ignore any illuminated warning lamps or text messages.

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

NOTICE

Failure to observe illuminated indicator lamps and text messages can lead to your vehicle being damaged.

If a light emitting diode (LED) in the tail light cluster fails, a warning is not given. If all LEDs fail, this is indicated by the indicator lamp .

^a) A separate display appears in the instrument cluster if there is a bend lighting fault.

^b) Displayed in colour on an instrument cluster with colour display.