Malfunction - Mercedes-Benz 2011 M-Class Operator's Manual

Problems with the SmartKey
Problem
You cannot lock or
unlock the vehicle
using the SmartKey.
You can no longer lock
or unlock the vehicle
using KEYLESS-GO.
You have lost the
SmartKey.
You have lost the
mechanical key.
Possible causes/consequences and M Solutions
The SmartKey battery is discharged or nearly discharged.
X
Point the tip of the SmartKey at the driver's door handle from a
distance of approximately 1.5 ft (50 cm) and try to unlock or
lock the vehicle again.
If this does not work:
X
Check the SmartKey battery and replace it if necessary
( Y page 76).
X
Y
Lock ( page 80) or unlock (
the mechanical key.
The SmartKey is faulty.
X
Lock ( Y page 80) or unlock (
the mechanical key.
X
Have the SmartKey checked at a qualified specialist workshop.
KEYLESS-GO is in standby mode because the vehicle has not been
unlocked for an extended period.
X
Pull the door handle twice and then insert the SmartKey into the
ignition lock.
There is a malfunction with KEYLESS-GO.
X
Lock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the %/& button.
X
Have the SmartKey checked at a qualified specialist workshop.
There is interference from a powerful source of radio waves.
X
Lock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the %/& button.
X
Have the SmartKey canceled at an authorized Mercedes-Benz
Center.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
SmartKey
Y
page 80) the vehicle using
Y page 80) the vehicle using
77
Z