Mercedes-Benz C-Class Operator's Manual page 243

Display messages
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Don't Forget Your
Key
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Key Not Detected
(red display message)
Â
Key Not Detected
(white display
message)
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Key Detected in
Vehicle
Possible causes/consequences and M Solutions
The display message is shown for a maximum of 60 seconds and
is only a reminder.
You have opened the driver's door with the engine switched off.
The KEYLESS-GO key is not in the ignition lock.
Remember to take the KEYLESS-GO key with you when you
X
leave the vehicle.
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.
Pull over and stop the vehicle safely as soon as possible, paying
X
attention to road and traffic conditions.
Secure the vehicle against rolling away (
X
( page 158).
Y
Locate the KEYLESS-GO key.
X
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.
Pull over and stop the vehicle safely as soon as possible, paying
X
attention to road and traffic conditions.
Secure the vehicle against rolling away (
X
Operate the vehicle with the SmartKey in the ignition lock.
X
The KEYLESS-GO key cannot be detected at present.
Change the location of the SmartKey with the KEYLESS-GO
X
functions in the vehicle.
If the KEYLESS-GO key is still not detected:
Operate the vehicle with the SmartKey in the ignition lock.
X
The KEYLESS-GO key has been detected inside the vehicle during
locking.
Remove the KEYLESS-GO key from the vehicle.
X
Display messages
page 158)
Y
page 158).
Y
Z
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