Mercedes-Benz

Display message

Problem	Possible causes/effects andsolutions
Key not detected (red display message)	The key cannot be detected and may no longer be in the vehicle. The key is no longer in the vehicle and you switch off the engine: You can no longer start the engine. You cannot centrally lock 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: Stop the vehicle immediately in accordance with the traffic conditions. Place the key in the slot for starting the engine with the key .

Problem

Possible causes/effects andsolutions

Key not detected (red display message)

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

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

Ensure that the key is in the vehicle.

If the key detection function has a malfunction due to a strong radio signal source:

Stop the vehicle immediately in accordance with the traffic conditions.

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