A yellow warning light illuminates
on the Interaction Unit.
In addition, an icon with the corresponding
tire appears in a Check Control message on
the Interaction Unit.
Icon Possible cause
There is a flat tire or a major
tire pressure loss.
No reset was performed for the
system. The system issues a
warning based on the tire in-
flation pressures stored during
the last reset.
Measure
1. Reduce your speed and come to a stop
carefully. Avoid sudden braking and
steering maneuvers.
2. Check whether the vehicle is fitted with
standard tires or runflat tires.
Runflat tires are labeled with a circular
icon containing the letters RSC marked
on the tire sidewall.
3. Follow the instructions for what to do in
case of a flat tire.
Actions in the event of a flat tire
Standard tires
1. In the event of a flat tire, identify the
damaged tire.
2. Check the tire pressure in all four tires,
for instance using the tire pressure dis-
play of a flat tire kit.
For tires with special approval: when the
tire pressure in all four tires is correct,
the Tire Pressure Monitor may not have
been reset. Then perform the reset.
If no tire damage can be identified, con-
tact an authorized service center or an-
other qualified service center or repair
shop.
3. Repair the flat tire, e.g., using a tire re-
pair set or by changing the wheel.
The use of sealant, e.g., from the tire
repair set, may damage the wheel elec-
tronics. Have the electronics replaced at
the next opportunity.
Runflat tires
Safety information
Warning
The vehicle handles differently when a
runflat tire has insufficient or no tire pres-
sure; for instance, reduced directional sta-
bility when braking, braking distances are
longer and the self-steering properties will
change. There is a risk of accident, injury,
or property damage. Drive moderately and
do not exceed a speed of 50 mph/80 km/h.
Warning
Vibrations or loud noises while driving
can indicate the final failure of a tire. Tire
components may come loose. There is a
risk of accident, injury, or property dam-
age. Reduce your speed and stop. Do not
continue driving. Contact an authorized
service center or another qualified service
center or repair shop.
Maximum speed
You may continue driving with a damaged
tire at speeds up to 50 mph/80 km/h.
Seite 305
Wheels and tires MOBILITY
305
Online Edition for Part no. 01405B37A59 - II/24
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