Display messages
Possible causes/consequences and
M
M
Solutions
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Key not detected
Key not detected
(red display message)
The key is not in the vehicle.
A warning tone also sounds.
If the engine is switched off, you can no longer lock the vehicle cen-
trally 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 166).
X
Locate the key.
Because there is interference from a strong source of radio waves, the
key is not detected whilst the engine is running.
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 166).
X
Insert the key into the ignition lock and bring into key mode.
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Key not detected
Key not detected
(white display message)
The key is currently undetected.
X
Change the location of the key in the vehicle.
If the key still cannot be detected:
X
Operate the vehicle with the key in the ignition lock if necessary.
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Remove
Remove starting
starting but‐
but‐
ton,
ton, then
then insert
insert key
key
The key is continually undetected.
The key detection function has a temporary malfunction or is faulty. A
warning tone also sounds.
X
Insert the key into the ignition lock and turn it to the desired posi-
tion.
X
Consult a qualified specialist workshop.
Warning and indicator lamps on the instrument cluster
General notes
Some systems perform a self test when the ignition is switched on. Some warning and indicator
lamps may temporarily switch on or flash during the test. This behaviour is nothing to be concerned
about.
The warning and indicator lamps will alert you to a malfunction if they switch on or flash after the
engine is started or while driving.
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Warning and indicator lamps on the instrument cluster
On
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