Changing the battery
You require a CR 2025 3 V cell battery.
- Take the mechanical key out of the SmartKey ().
- Press mechanical key 2 into the opening in the SmartKey in the direction of the arrow until battery tray cover 1 opens. When doing so, do not hold cover 1 shut.
- Remove battery tray cover 1.
- Repeatedly tap the SmartKey against your palm until battery 3 falls out.
- Insert the new battery with the positive terminal facing upwards. Use a lint-free cloth to do so.
- Make sure that the surface of the battery is free from lint, grease and all other forms of contamination.
- Insert the front tabs of battery tray cover 1 and then press to close it.
- Insert the mechanical key into the SmartKey.
- Check the function of all SmartKey buttons on the vehicle.
See also:
Engaging park position P automatically
Park position P is automatically engaged if:
- you switch off the engine using the
SmartKey and remove the SmartKey, or if
you switch off the engine using the Start/Stop button and open one of th ...
General notes
If you cannot lock or unlock the vehicle with
the SmartKey, either the battery in the
SmartKey is discharged, the SmartKey is
faulty or the starter battery is discharged.
Check the battery in ...
Service for recovering a stolen vehicle
If your vehicle has been stolen:
Notify the police.
The police will issue a numbered incident
report.
This number will be forwarded to
the
Mercedes-Benz Customer Assistance
Center togethe ...