Mercedes-Benz M-Class User Manual

Problems with the SmartKey
Problem Possible causes/consequences and M Solutions
You cannot lock or
unlock the vehicle
using the SmartKey.
The SmartKey battery is discharged or nearly discharged.
X
Try again to 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 % or
& button.
If this does not work:
X
Check the SmartKey battery (Y page 83) and replace it if
necessary (Y page 83).
X
Lock (Y page 88) or unlock (Y page 88) the vehicle using
the mechanical key.
The SmartKey is faulty.
X
Lock (Y page 88) or unlock (Y page 88) the vehicle using
the mechanical key.
X
Have the SmartKey checked at a qualified specialist workshop.
You can no longer lock
or unlock the vehicle
using KEYLESS-GO.
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 % or & button.
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 % or & button.
X
Have KEYLESS-GO checked at a qualified specialist workshop.
If this does not work:
X
Check the SmartKey battery (Y page 83) and replace it if
necessary (Y page 83).
X
Lock (Y page 88) or unlock (Y page 88) the vehicle using
the mechanical key.
You have lost a
SmartKey.
X
Have the SmartKey deactivated at a qualified specialist
workshop.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
You have lost the
mechanical key.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
SmartKey
85
Opening and closing
Z

Mercedes-Benz M-Class Specifications

General

Brand	Mercedes-Benz
Model	M-Class
Category	Automobile
Language	English