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center or another qualified service center or
repair shop.
2. Rectify the flat tire using the Mobility Sys‐
tem, refer to page 162.
Run-flat tires
You can continue driving with a damaged tire
at speeds up to 50 mph/80 km/h.
Continued driving with a flat tire
If 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.
3. At the next opportunity, check the inflation
pressure in all four tires.
If the tire inflation pressure in all four tires is
correct, the Flat Tire Monitor may not have
been initialized. In this case, initialize the
system.
Possible driving distance with complete loss of
tire inflation pressure:
The possible driving distance after a loss of tire
inflation pressure depends on the cargo load
and the driving style and conditions.
For a vehicle containing an average load, the
possible driving distance is ap‐
prox. 50 miles/80 km.
When the vehicle is driven with a damaged tire,
its handling characteristics change, e.g., re‐
duced lane stability during braking, a longer
braking distance, and altered self-steering
properties. Adjust your driving style accord‐
ingly. Avoid abrupt steering maneuvers or driv‐
ing over obstacles, e. g., curbs, potholes, etc.
Because the possible driving distance depends
on how the vehicle is used during the trip, the
actual distance may be smaller or greater de‐
pending on the driving speed, road conditions,
external temperature, cargo load, etc.
WARNING
Your vehicle handles differently when a
run-flat tire is damaged and has low or missing
tire inflation pressure, e.g., your lane stability is
reduced when braking, braking distances are
longer and the self-steering properties will
change. There is risk of an accident.
Drive moderately and do not exceed a speed of
50 mph/80 km/h.◀
Final tire failure
Vibrations or loud noises while driving can indi‐
cate the final failure of a tire. Reduce speed and
stop, otherwise, pieces of the tire could come
loose and cause an accident. Do not continue
driving. Contact a dealer’s service center or an‐
other qualified service center or repair shop.
Tire Pressure Monitor
TPM
The concept
The system monitors the tire pressure in the
four mounted tires. The system notifies you if
there is a significant loss of pressure in one or
more tires. Sensors in the tire valves measure
the tire pressure.
Information
To operate the system, also note the additional
information and instructions contained under
Tire inflation pressure, refer to page 154.
Functional requirements
The system must have been reset while the in‐
flation pressure was correct; otherwise, it may
not reliably signal a loss in pressure.
Perform a system reset after adjusting the tire
inflation pressure to a new value and after
changing a tire or wheel
Always use wheels with TPM electronics to en‐
sure that the system will operate properly.
Seite 79
Safety
CONTROLS
79
Online Edition for Part no. 01 40 2 964 433 - VI/15
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