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Display messages
Possible causes/consequences and MM Solutions
Because there is interference from a strong source of radio waves, the
SmartKey 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 156).
X
Insert the SmartKey into the ignition lock and drive in SmartKey
mode.
Â
Remove 'Start' But‐Remove 'Start' But‐
ton and Insert Keyton and Insert Key
R
The SmartKey detection function has a temporary malfunction or is
faulty.
R
The SmartKey is continually undetected.
A warning tone also sounds.
X
Insert the SmartKey into the ignition lock and turn it to the desired
position.
X
Visit 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. Therefore, some indicator
and warning lamps may light up or flash temporarily. This behavior is non-critical. These indicator
and warning lamps only indicate a malfunction if they light up or flash after starting the engine or
whilst driving.
Safety
Seat belts
Warning/
indicator
lamp
NN Signal type
Possible causes/consequences and MM Solutions
ü
N After starting the engine, the red seat belt warning lamp lights up for 6 seconds.
The seat belt warning lamp reminds the driver and front passenger to fasten their
seat belts.
X
Fasten your seat belt (Y page 48).
ü
N After starting the engine, the red seat belt warning lamp lights up. 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 48).
The warning tone ceases.
274
Warning and indicator lamps in the instrument cluster
On-board computer and displays
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