Mercedes-Benz C-Class Coupe 2019 Operator's Manual page 71

Problem
Activating/deactivating the automatic lock‐
ing feature
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn‐
ing faster than walking pace.
Possible causes/consequences and
The SmartKey is faulty.
R
Activate the SmartKey functions (
#
Check the battery using the battery check lamp and replace if necessary (
#
Use the emergency key to unlock or lock the vehicle (
#
Have the vehicle and SmartKey checked at a qualified specialist workshop.
#
M M Solutions
page 63).
/
page 64).
/
To activate: press and hold button
#
approximately five seconds until an acoustic
signal sounds.
To deactivate: press and hold button
#
approximately five seconds until an acoustic
signal sounds.
In the following situations, there is a danger of
being locked out when the function is activated:
While the vehicle is being tow started/
R
pushed.
The vehicle is being tested on the dynamom‐
R
eter.
69
Opening and closing
page 64).
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2 for
1 for