If the vehicle can no longer be unlocked with the SmartKey, use the mechanical key.
If you use the mechanical key to unlock and open the driver's door, the anti-theft alarm system will be triggered .
■ Take the mechanical key out of the SmartKey .
■ Insert the mechanical key into the lock of the driver's door as far as it will go.

1 To unlock X Turn the mechanical key counter-clockwise to position 1.
The door is unlocked.
■ Turn the mechanical key back and remove it.
■ Insert the mechanical key into the SmartKey.
ECO start/stop function (AMG
vehicles)
Important safety notes
WARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is a risk of acci ...
Mirrors
Rear-view mirror
Rear-view mirror (manual anti-glare)
- anti-glare mode: flick anti-glare
switch 1 forwards or back.
Exterior mirrors
Adjusting the exterior mirrors
WARNING
Exercise care whe ...
Warning and indicator lamps in the instrument cluster
Seat belt
Display messages
Possible causes/consequences and
Solutions
After starting the engine, the red seat belt warning lamp lights up for
six seconds.
The sea ...