Mercedes-Benz CLA-Class 2015 - Manual (Page 81)

Problems with the SmartKey
Problem Possible causes/consequences and M M Solutions
You cannot lock or
unlock the vehicle
using the SmartKey.
The SmartKey battery is discharged or nearly discharged.
X
Vehicles without KEYLESS-GO or KEYLESS-GO start func-
tion: try again to lock/unlock the vehicle using the remote con-
trol 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 77) and replace it if nec-
essary (
Y
page 78).
X Unlock (
Y
page 83) or lock (
Y
page 83) the vehicle using the
mechanical key.
There is interference from a powerful source of radio waves.
X
Vehicles without KEYLESS-GO or KEYLESS-GO start func-
tion: try again to lock/unlock the vehicle using the remote con-
trol function of the SmartKey. Point the tip of the SmartKey at
the driver's door handle from close range and press the % /
& button.
If this does not work:
X
Unlock (
Y
page 83) or lock (
Y
page 83) the vehicle using the
mechanical key.
The SmartKey is faulty.
X
Unlock (
Y
page 83) or lock (
Y
page 83) 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.
The SmartKey battery is discharged or nearly discharged.
X
Check the SmartKey battery (
Y
page 77) and replace it if nec-
essary (
Y
page 78).
If this does not work:
X Unlock (
Y
page 83) or lock (
Y
page 83) the vehicle using the
mechanical key.
There is interference from a powerful source of radio waves.
X Unlock (
Y
page 83) or lock (
Y
page 83) the vehicle using the
mechanical key.
SmartKey
79
Opening
and
closing
Z