Immobilizer
The immobilizer prevents your vehicle from being started without the correct SmartKey.
When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be started by anyone with a valid SmartKey that is left inside the vehicle.
•► To activate with the SmartKey: remove the SmartKey from the ignition lock.
•► To activate with KEYLESS-GO: switch the ignition off and open the driver's door.
•► To deactivate: switch on the ignition.
The immobilizer is always deactivated when you start the engine.
In the event that the engine cannot be started when the starter battery is fully charged, the immobilizer may be faulty.
Contact an authorized Mercedes-Benz Center or call 1-800-FOR-MERCedes (in USA) or 1-800-387-0100 (in Canada).
See also:
NECK-PRO luxury head restraints
If you have difficulty resetting
the NECK-PRO
luxury head restraints, have this work
carried out at a qualified specialist
workshop, e.g. an authorized Mercedes-
Benz Center.
Remove res ...
Tailgate emergency release
If the tailgate can no longer be opened from outside the vehicle, use the emergency
release on inside of the tailgate.
Take the mechanical key out of the SmartKey ().
To open the tailgate com ...
Mechanical key
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, the anti-theft alarm
system ...