
Display messages
Possible causes/consequences and
M
M
Solutions
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 191).
X
Insert the key into the ignition lock and bring into key mode.
Â
Remove
Remove starting
starting but‐
but‐
ton,
ton, then
then insert
insert key
key
R
The key detection function has a temporary malfunction or is faulty.
R
The key is continually undetected.
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 in the instrument cluster
General notes
Some systems carry out a self-diagnosis when the ignition is switched on. Several warning and
indicator lamps can thereby temporarily light up or flash. This behaviour is non-critical. These
warning and indicator lamps only indicate a malfunction if they light up or flash after the engine is
started or during a journey.
Safety
Seat belts
Warning/
indicator
lamp
N
N
Signal type
Possible causes/consequences and
M
M
Solutions
ü
N
Only for certain countries: the red seat belt warning lamp lights up for 6 seconds
after the engine starts.
The seat belt warning lamp reminds the driver and front passenger to fasten their
seat belts.
X
Fasten your seat belt (
Y
page 47).
ü
N
Only for certain countries: the red seat belt warning lamp lights up after the
engine starts. In addition, a warning tone sounds for up to 6 seconds.
The driver's seat belt is not fastened.
X
Fasten your seat belt (
Y
page 47).
The warning tone ceases.
Warning and indicator lamps in the instrument cluster
337
On
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Z