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If a pressure loss warning message
appears in the multifunction display:
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observe the instructions in the display mes-
sages (Y page 227)
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check the tire for damage
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if driving on, observe the following notes
The driving distance possible in run-flat mode
is approximately 50 miles (80 kilometers)
when the vehicle is partially laden and approx-
imately 19 miles (30 kilometers) when the
vehicle is fully laden.
In addition to the vehicle load, the driving dis-
tance possible depends upon:
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Vehicle speed
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Road condition
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Outside temperature
The driving distance possible in run-flat mode
may be reduced by extreme driving conditions
or maneuvers, or it can be increased through a
moderate style of driving.
The driving distance possible in run-flat mode
is counted from the moment the tire pressure
loss warning appears in the multifunction dis-
play.
You must not exceed a maximum design
speed of 50 mph (80 km/h).
When replacing one or all tires, please observe
the following specifications for your vehicle's
tires:
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Size
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Type and
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The "MOExtended" mark
If a tire has gone flat and cannot be replaced
with an MOExtended tire, a standard tire may
be used as a temporary measure. Make sure
that you use the proper size and type (summer
or winter tire).
Vehicles equipped with MOExtended tires are
not equipped with a TIREFIT kit at the factory.
It is therefore recommended that you addition-
ally equip your vehicle with a TIREFIT kit if you
mount tires that do not feature run-flat charac-
teristics, e.g. winter tires. A TIREFIT kit can be
obtained from a qualified specialist workshop,
for example.
Important safety notes
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WARNING
When you drive in emergency mode, the
handling characteristics are impaired. e.g.
when cornering, when accelerating strongly
and when braking. There is a risk of an acci-
dent.
Do not exceed the maximum specified
speed. Avoid any abrupt steering and driving
maneuvers as well as driving over obstacles
(curbs, pot holes, off-road). This applies, in
particular, to a loaded vehicle.
Stop driving in emergency mode if you
notice:
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banging noise
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vehicle vibration
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smoke which smells like rubber
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continuous ESP
®
intervention
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cracks in the tire side walls
After driving in emergency mode, have the
rims checked by a qualified specialist work-
shop with regard to their further use. The
defective tire must be replaced in every
case.
TIREFIT kit
Important safety notes
TIREFIT is a tire sealant.
You can use TIREFIT to seal punctures of up to
0.16 in (4 mm), particularly those in the tire
tread. You can use TIREFIT at outside tempera-
tures down to Ò4 ‡ (Ò20 †).
G
WARNING
In the following situations, the tire sealant is
unable to provide sufficient breakdown
assistance, as it is unable to seal the tire
properly:
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there are cuts or punctures in the tire
larger than those mentioned above.
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the wheel rim is damaged.
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you have driven at very low tire pressures
or on a flat tire.
Flat tire
279
Breakdown assistance
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