Mercedes-Benz 2013 C Class Coupe - Manual (Page 282)

Display messages Possible causes/consequences and M Solutions
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Key not detected
(red display message)
The KEYLESS-GO key is not in the vehicle.
A warning tone also sounds.
If the engine is switched off, you can no longer lock the vehicle
centrally or start the engine.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 169)
( Y page 169).
X Locate the KEYLESS-GO key.
The KEYLESS-GO key is not detected while the engine is running
because there is interference from a strong source of radio waves.
A warning tone also sounds.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 169).
X Operate the vehicle with the key in the ignition lock if necessary.
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Key not detected
(white display mes-
sage)
The KEYLESS-GO key cannot be detected at present.
X Change the location of the key with the KEYLESS-GO functions
in the vehicle.
If the KEYLESS-GO key is still not detected:
X Operate the vehicle with the key in the ignition lock if necessary.
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Key still in vehi‐
cle
The KEYLESS-GO key has been detected inside the vehicle during
locking.
X Remove the KEYLESS-GO key from the vehicle.
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Remove starting
button, then
insert key
The KEYLESS-GO key is not continually detected.
KEYLESS-GO is temporarily malfunctioning or is defective. A warn-
ing tone also sounds.
X Insert the key into the ignition lock and turn it to the desired
position.
X Visit a qualified specialist workshop.
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Close doors to
lock vehicle
At least one door is open. A warning tone also sounds.
X Close all doors and lock the vehicle again.
280
Display messages
On-board computer and displays