Moextended Tires - Mercedes-Benz SL Operator's Manual

Flat tire
272
If possible, bring the front wheels into the
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straight-ahead position.
Switch off the engine.
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Vehicles without KEYLESS-GO: remove the
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SmartKey from the ignition lock.
Vehicles with KEYLESS-GO: open the driv-
X
er's door.
The on-board electronics now have status 0.
This is the same as the SmartKey having been
removed.
Vehicles with KEYLESS-GO: remove the
X
Start/Stop button from the ignition lock
( page 124).
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Make sure that the passengers are not endan-
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gered as they do so. Make sure that no one is
near the danger area while a wheel is being
changed. Anyone who is not directly assisting
in the wheel change should, for example,
stand behind the barrier.
Get out of the vehicle. Pay attention to traffic
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conditions when doing so.
Close the driver's door.
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MOExtended tires (tires with run-flat
properties)
General notes
With MOExtended tires (tires with run flat char-
acteristics), you can continue to drive your vehi-
cle even if there is a total loss of pressure in one
or more tires. The affected tire must not show
any clearly visible damage.
You can recognize MOExtended tires by the
MOExtended marking which appears on the
sidewall of the tire. You will find this marking
next to the tire size designation, the load-bear-
ing capacity and the speed index (
MOExtended tires may only be used in conjunc-
tion with an active tire pressure monitor.
If a pressure loss warning message appears
in the multifunction display:
observe the instructions in the display mes-
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sages ( page 225).
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check the tire for damage.
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if driving on, observe the following notes.
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The driving distance possible in run-flat mode is
approximately 50 miles (80 km) when the vehi-
cle is partially laden and approximately 19 miles
(30 km) when the vehicle is fully laden.
In addition to the vehicle load, the driving dis-
tance possible depends upon:
vehicle speed
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road condition
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outside temperature
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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 display.
You must not exceed a maximum speed of
50 mph (80 km/h).
When replacing one or all tires, please observe
the following specifications for your vehicle's
tires:
size
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type and
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the "MOExtended" mark
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If a tire has gone flat and cannot be replaced
with a 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 additionally
equip your vehicle with a TIREFIT kit if you mount
tires that do not feature run-flat properties, e.g.
winter tires. A TIREFIT kit is available, for exam-
ple, from a qualified specialist workshop.
Important safety notes
G
WARNING
When driving in emergency mode, the driving
page 299).
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characteristics deteriorate, e.g. when corner-
ing, accelerating quickly and when braking.
There is a risk of an accident.
Do not exceed the stated maximum speed.
Avoid abrupt steering and driving maneuvers,
and driving over obstacles (curbs, potholes,
off-road). This applies in particular to a laden
vehicle.
Stop driving in emergency mode if:
you hear banging noises.
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the vehicle starts to shake.
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