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3. Reset the system.
If there is a significant loss of tire
inflation pressure
Message
A yellow warning light is illuminated in
the instrument cluster.
In addition, a symbol with the affected tire ap‐
pears in a Check Control message on the Con‐
trol Display.
Symbol Possible cause
There is a flat tire or a major loss in
tire inflation pressure.
No reset was performed for the sys‐
tem. The system issues a warning
based on the tire inflation pressures
stored during the last reset.
Measure
1.
Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.
2. Check whether the vehicle is fitted with
normal tires or run-flat tires.
Run-flat tires, refer to page 276, are la‐
beled with a circular symbol containing the
letters RSC marked on the tire's sidewall.
Actions in the event of a flat tire
Normal tires
1.
Identify the damaged tire.
Check the tire inflation pressure in all four
tires, for instance using the tire pressure
gage of a flat tire kit.
For tires with special approval: if the tire in‐
flation pressure in all four tires is correct,
the TPM may not have been reset. In this
case, perform the reset.
If tire damage cannot be found, contact a
dealer’s service center or another qualified
service center or repair shop.
2. Repair the flat tire, e.g., with a flat tire kit or
by changing the wheel.
Use of sealant, for instance from the flat tire kit,
may damage the TPM wheel electronics. Have
the electronics replaced at the next opportu‐
nity.
Run-flat tires
Safety information
WARNING
Your vehicle handles differently with a
run-flat with no or low inflation pressure; for in‐
stance, your lane stability when braking is re‐
duced, braking distances are longer and the
self-steering properties will change. There is a
risk of an accident.
Drive moderately and do not exceed a speed of
50 mph/80 km/h.◀
WARNING
Heavy trailers can start swinging when
continuing to drive with a flat tire. There is a
risk of accidents or risk of damage to property.
Do not exceed a speed of 35 mph/60 km/h
when driving with a trailer and a flat tire. Imme‐
diately brake in the case of swinging. Apply
necessary steering corrections as carefully as
possible.◀
Maximum speed
You may continue driving with a damaged tire
at speeds up to 50 mph/80 km/h.
Continued driving with a flat tire
Follow the following when continuing to drive
with a damaged tire:
1.
Avoid sudden braking and steering maneu‐
vers.
2. Do not exceed a speed of 50 mph/80 km/h.
Seite 286
Mobility Wheels and tires
286
Online Edition for Part no. 01402984955 - X/17
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