General notes
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 or the rear door, the anti-theft alarm system will be triggered .
► To end the alarm: insert the SmartKey into the ignition lock.
Removing the mechanical key

1 Release catch
2 Mechanical key
► Push release catch 1 in the direction of the arrow and at the same time remove mechanical key 2 from the SmartKey.
BAS (Brake Assist System)
Observe the "Important safety notes" section .
WARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident ...
Safety systems
...
Important safety notes
WARNING
Replace rims or tires with the same
designation, manufacturer and type as shown
on the original part. For further information
contact an authorized Mercedes-Benz Center.
If incorrectly ...