Problems with the key, Opening and closing – Mercedes-Benz 2013 CLA Class User Manual
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Problems with the key
Problem
Possible causes/consequences and M Solutions
You cannot lock or
unlock the vehicle
using the key.
The key battery is discharged or nearly discharged.
X
Try again to lock/unlock the vehicle using the remote control
function of the key. Point the tip of the key at the driver's door
handle from close range and press the % / & button.
If this does not work:
X
Check the key battery and replace it if necessary (
X
the emergency key element.
There is interference from a powerful source of radio waves.
X
Try again to lock/unlock the vehicle using the remote control
function of the key. Point the tip of the key at the driver's door
handle from close range and press the % / & button.
The key is faulty.
X
the emergency key element.
X
Have the key checked at a qualified specialist workshop.
You have lost a key.
X
Have the key 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 emer-
gency key element.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
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Key
Opening and closing