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.
General notes
Please note that for the specified vehicle
data:
R the heights specified may vary as a result
of:
- Tires
- Load
- Condition of the suspension
- Optional equipment
R the vehicle length specifi ...
Care
Notes on care
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use care products and cleaning agents
recommended and approved by Mercedes-
Benz.
WARNING
...
ESP® (Electronic Stability Program)
Important safety notes
Observe the "Important safety notes"
section .
WARNING
If ESP® is malfunctioning, ESP® is unable to
stabilize the vehicle. Additionally, further
driving safety s ...