Loss - Mercedes-Benz 2015 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 a Smart-
Key.
You have lost the
mechanical key.
Possible causes/consequences and M M Solutions
The SmartKey battery is discharged or nearly discharged.
Try again to lock/unlock the vehicle using the remote control
X
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:
Check the SmartKey battery (
X
essary ( page 83).
Y
Lock ( page 88) or unlock (
X
Y
mechanical key.
The SmartKey is faulty.
Lock ( page 88) or unlock (
X
Y
mechanical key.
Have the SmartKey checked at a qualified specialist workshop.
X
There is interference from a powerful source of radio waves.
Lock/unlock the vehicle using the remote control function of
X
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.
Lock/unlock the vehicle using the remote control function of
X
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the % or & button.
Have KEYLESS-GO checked at a qualified specialist workshop.
X
If this does not work:
Check the SmartKey battery (
X
essary ( page 83).
Y
Lock ( page 88) or unlock (
X
Y
mechanical key.
Have the SmartKey deactivated at a qualified specialist work-
X
shop.
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.
X
SmartKey
page 83) and replace it if nec-
Y
page 88) the vehicle using the
Y
page 88) the vehicle using the
Y
page 83) and replace it if nec-
Y
page 88) the vehicle using the
Y
85
Z