Necessary wheel-changing tools can
include, for example:
R
jack
R wheel chock
R wheel wrench
Vehicles with aTIREFIT kit Example: vehicle tool kit in the left-hand stowage
space
:
Tyre sealan tfiller bottle
; Folding wheel chock
= One pair of gloves (under jack)
? Tyre inflation compressor
A Towing eye
B Jack
C Centring pin
D Wheel wrench
X Open the boot lid/tailgate.
X Swing the boot floor/luggage compart-
men tfloor upwards (Y page 325) or
(Y page 325). Vehicles with spare wheel/"Minispare"
emergency spare wheel :
Vehicle tool kit tray
; Stowage tray
= Spare wheel/"Minispare" emergency
spare wheel
X Open the boot lid/tailgate.
X Swing the boot floor/luggage compart-
men tfloor upwards (Y page 325) or
(Y page 325).
The vehicle tool kit contains:
R Foldable wheel chock
R Fuse allocation chart
R Jack
R Centring pin
R One pair of gloves
R Wheel wrench
R Towing eye 362
Where will I find...?Breakdown assistance
Vehicles with
acollapsible emergency
spare wheel :
Towing eye
; One pair of gloves
= Jack
? Folding wheel chock
A Centring pin
B Sheet for faulty wheel
C Tyre inflatio ncompressor
D Wheel wrench
E Fuse allocation chart
X Open the boot lid/tailgate.
X Swing the boot floor/luggage compart-
ment floor upwards (Y page 325) or
(Y page 325). Flat tyre
Preparing the vehicle
Information on changing a wheel/fitting
(Y page 388).
Vehicle preparation is not necessary on vehi-
cles with MOExtended tyres.
Your vehicle may be equipped with:
R MOExtended tyres (tyres with run-flat char-
acteristics) (Y page 363)
R a TIREFIT kit (Y page 364)
R an emergency spare wheel (only for certain
countries) (Y page 425) X
Stop the vehicle as far away as possible
from traffic on solid, non-slippery and level
ground.
X Switch on the hazard warning lamps.
X Apply the parking brake.
X Bring the front wheels into the straight-
ahead position.
X Shift the transmission to position P.
X Vehicles with AIRMATIC: make sure that
"normal" level is selected (Y page 208).
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the key from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver's door.
The on-board electronics have status 0,
which is the same as the key having been
removed.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 161).
X All occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
X Make sure that no one is near the danger
area while a wheel is being changed. Any-
one who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Get out of the vehicle. Pay attention to traf-
fic conditions when doing so.
X Close the driver's door.
X Place the warning triangle a suitable dis-
tance away (Y page 360). Observe legal
requirements. MOExtended tyres (tyres with run-flat
characteristics)
G
WARNING
When driving in emergency mode, the driving
characteristics deteriorate, e.g. when corner-
ing, accelerating quickly and when braking.
There is a risk of accident. Flat tyre
363Breakdown assistance
Z
other obstacles. If it is necessary to drive over
kerbs, speed humps or similar elevations, try
to do so slowly and at an obtuse angle. Oth-
erwise, the tyres, particularly the sidewalls,
may be damaged. Regular checking of wheels and tyres
G
WARNING
Damaged tyres can cause tyre inflation pres-
sure loss. As a result, you could lose control
of your vehicle. There is a risk of accident.
Check the tyres regularly for signs of damage
and replace any damaged tyres immediately.
Regularly check the wheels and tyres of your
vehicle for damage at least once a month, as
well as after driving off-road or on rough
roads. Damaged wheels can cause a loss of
tyre pressure. Pay particular attention to
damage such as:
R cuts in the tyres
R punctures
R tears in the tyres
R bulges on tyres
R deformation or severe corrosion on wheels
Regularly check the tyre tread depth and the
condition of the tread across the whole width
of the tyre (Y page 381). If necessary, turn
the front wheels to full lock in order to inspect
the inner side of the tyre surface.
All wheels must have a valve cap to protect
the valve against dirt and moisture. Do not fit
anything onto the valve other than the stand-
ard valve cap or other valve caps approved by
Mercedes-Benz for your vehicle. Do not fit any
other valve caps or systems, e.g. tyre pres-
sure monitoring systems.
Regularly check the pressure of all the tyres,
particularly prior to long trips. Adjust the tyre
pressure as necessary (Y page 383).
Observe the notes on the emergency spare
wheel (Y page 425). The service life of tyres depends on various
factors, including the following:
R
driving style
R tyre pressure
R tyre mileage Tyre tread
G
WARNING
Insufficient tyre tread will reduce tyre trac-
tion. The tyre is no longer able to dissipate
water. This means that on wet road surfaces,
the risk of aquaplaning increases, in particular
where speed is not adapted to suit the driving
conditions. There is a risk of accident.
If the tyre pressure is too high or too low, tyres
may exhibit different levels of wear at differ-
ent locations on the tyre tread. Thus, you
should regularly check the tread depth and
the condition of the tread across the entire
width of all tyres.
Minimum tyre tread depth for:
R summer tyres: 3 mm
R M+S tyres: 4 mm
For safety reasons, replace the tyres before
the legally prescribed limit for the minimum
tyre tread depth is reached.. Selecting, fitting and replacing tyres
R Only fit tyres and wheels of the same type
and make.
R Only fit tyres of the correct size onto the
wheels.
R Run in new tyres at moderate speeds for
the first 100 km. They only reach their full
performance after this distance.
R Do not drive with tyres which have too little
tread depth. This otherwise significantly
reduces the traction on wet roads (aqua-
planing).
R Replace the tyres after six years at the lat-
est, regardless of wear. Operation
381Wheels and tyres Z
