Mercedes-Benz

Display message

Problem	Possible causes/effects andSolutions
Key not detected (red display message)	The key is not detected and may no longer be in the vehicle. The key is no longer in the vehicle and you switch off the vehicle: You can no longer start the vehicle. You cannot lock the vehicle centrally. Ensure that the key is in the vehicle. If the key detection function has a malfunction due to a strong radio signal source, proceed as follows: Stop the vehicle immediately in accordance with the traffic conditions. Place the key in the slot for starting with the key More.

Problem

Possible causes/effects andSolutions

Key not detected (red display message)

The key is not detected and may no longer be in the vehicle.

The key is no longer in the vehicle and you switch off the vehicle:

Ensure that the key is in the vehicle.

If the key detection function has a malfunction due to a strong radio signal source, proceed as follows:

Stop the vehicle immediately in accordance with the traffic conditions.

Place the key in the slot for starting with the key More.