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One of the airbags or a belt tensioner has been disabled by the diagnostic
tool
lights up for around 4 seconds after the ignition is switched on and then
flashes for approximately 12 seconds
Message:
Airbag/belt tensioner deactivated.
ProActive passenger protection
illuminates and the following message is shown in the information cluster
display
Message:
Proactive passenger protection not available.
or
ProActive passenger protection: funct. restricted.
The seat belt for the driver and front passenger needs to be replaced.
▶
Seek help from a specialist garage.
WARNING
When a fault in the airbag system occurs, there is a risk of the system not
being triggered in the event of an accident. Therefore, this must be
checked immediately by a specialized garage.
Tyre pressure monitoring
Read and observe on page 42 first.
Change of tyre pressure values
lights up – there was a pressure change in one of the tyres.
▶
Immediately reduce speed and avoid sudden steering and braking manoeu-
vres.
▶
Stop the vehicle, turn the ignition off and check the tyres and their inflation
pressures » page 282.
▶
Correct the tyre pressure if necessary or replace the affected wheel
» page 287 or use the repair kit » page 291.
▶
Save the tyre pressure values in the system » page 258.
System fault
flashes for approximately 1 minute and remains lit – there may be a fault in
the tyre pressure monitoring system.
▶
Stop the vehicle, turn the ignition off and start the engine again.
If the warning light flashes after starting the engine again, there is a system
error.
▶
It is possible to continue driving with due caution. Seek assistance from a
specialist garage immediately.
Disconnecting the vehicle battery
If the vehicle's battery has been disconnected and reconnected, the indicator
light comes on after switching on the ignition.
The warning light should go out after driving a short distance.
If, after a short drive, the indicator light does not go out, there is a system er-
ror.
▶
It is possible to continue driving with due caution. Seek assistance from a
specialist garage immediately.
Other incidents
The warning light
might be lit for one of the following reasons.
▶
The vehicle is loaded on one side. Distribute the load evenly.
▶
The wheels of one axle are loaded more heavily (e.g. when towing a trailer or
when driving uphill or downhill).
▶
Snow chains are mounted.
▶
A wheel has been changed.
CAUTION
Under certain circumstances (e.g. sporty style of driving, wintry or unpaved
roads) the warning light in the instrument cluster can be delayed or does
not light up at all.
Tyre pressure control system (RDK)
Read and observe on page 42 first.
Illuminates
Message:
Flat tyre!
▶
The tyre pressure of at least one tyre is below 1.4 bar (20 psi, 150 kPa) or
tyre damage is present.
▶
Check all wheels for external damage and foreign objects.
▶
Park the vehicle, do not continue your journey. Seek help from a special-
ist garage.
45
Instruments and warning lights
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