Mercedes-Benz GL-Class: 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 will be triggered.
There are several ways to turn off the alarm:
► To turn the alarm off with the
SmartKey: press the
button
on the SmartKey.
or
► Insert the SmartKey into the ignition
lock.
or
► To deactivate the alarm with KEYLESSGO:
press the Start/Stop button in the
ignition lock. The SmartKey must be in the
vehicle.
or
► Lock or unlock the vehicle using
KEYLESSGO.
The SmartKey must be outside the vehicle.
Removing the mechanical key

► Push release catch 1 in the direction of the arrow and at the same time, remove mechanical key 2 from the SmartKey.
Restoring the factory settings
► Press the
buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice. ...
SmartKey battery
Important safety notes
It is advisable to have batteries replaced at a
qualified specialist workshop, e.g. at an
authorized Mercedes-Benz Center.
WARNING
Batteries contain toxic and c ...
See also:
Rear Seat Audio (RSA) System
Vehicles with this feature allow the rear seat passengers to listen to and control
any of the music sources: radio, CD, DVD, or other auxiliary sources. The rear seat
passengers can control the same ...
Remote Keyless Entry (RKE) System
The RKE transmitter is used to remotely lock and unlock the doors from up to
60 m (195 ft) away from the vehicle.
Press to unlock the driver door.
Press again within five seconds
to unlock a ...
Off-road ABS
An ABS mode specifically suited to off-road
terrain is activated automatically if the offroad
drive program is activated
or the LOW RANGE off-road
gear is selected.
At speeds below 18 mph(30 km ...






