Mercedes-Benz 2013 CLS Coupe, Owner'S Manual

Page: 87 / 424

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
%
or
&
button.
If this does not work:
X
Check the key 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 emergency key element.
The key is faulty.
X
Lock (
Y
page 88) or unlock (
Y
page 88) the vehicle using
the emergency key element.
X
Have the key 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 key. Point the tip of the key at the driver's door handle from
close range and press the
%
or
&
button.
There is a fault with KEYLESS-GO.
X
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
%
or
&
button.
X
Have KEYLESS-GO checked at a qualified specialist workshop.
If this does not work:
X Check the key 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 emergency key element.
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.
Key
85
Opening and closing
Z