Tires
Display messages Possible causes/consequences and
0003 Solutions
Check
Tire Pressure Soon The tire pressure loss warnin
gsystem has detected a significant
loss in pressure.
Aw arning tone also sounds.
G WARNING
With tire pressures which are too low, there is a ris kofthe
following hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 175).
X If there is a flat tire, inspect the tires (Y page 527).
X Check the tire pressures and, if necessary, correct the tire
pressure.
X Restart the tire pressure loss warning system when the tire
pressure is correct (Y page 551).Check Tire Pressure
Then Restart Run
Flat Indicator The tire pressure loss warning system generated a display
message and has not been restarted since.
X
Set the correct tire pressure in all four tires.
X Restart the tire pressure loss warning system (Y page 551).Run Flat Indicator
Inoperative The tire pressure loss warning system is faulty.
X
Visit a qualified specialist workshop. Tire pressure
will be displayed
after driving a
few minutes The tire pressure monitor is measuring the tire pressure.
X
Drive on.
The tire pressures appearint he multifunction displayafter you
have bee ndriving for a few minutes. Tire Press. Monitor
Inoperative The tire pressure monitor is faulty.
X
Visi taqualified specialist workshop. 262
Display messagesOn-board computer and displays
Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 38).Where will I find...?
First-aid kit
First-aid kit
0002is located in the trunk under
the trunk floor.
X Open the trun klid.
X Open the trunk partition (Y page 106).
X Lift the trunk floor upwards (Y page 494).
X Remove first-aid kit 0002.
i Check the expiration date on the first-aid
kit at least once a year. Replace the
contents if necessary, and replace missing
items. Vehicle tool kit
General notes The vehicle tool kit consists of a towing eye
and tes
tgauge for measuring the brake pad
thickness (Y page 181). The towing eye is
located in the trunk in a bracket below the
trunk lid lock. The gauge for measuring brake
pad/lining thickness is in the vehicle
documen twallet .Ifthe vehicle is equipped
with a TIREFIT kit, this will be located in the
stowage space under the trunk floor.
Vehicles with aTIREFIT kit 0002
Towing eye
0003 Tire sealan tfiller bottle
0027 Fuse allocation chart
0026 Tire inflation compressor
X Open the trunk lid.
X Open the trunk partition (Y page 106).
X Lift the trunk floor upwards (Y page 494).526
Where will I find...?Breakdown assistance
Tire-change tool kit
0002
Bag containing the tire-changing tools
X Open the trunk lid.
X Open the trunk partition (Y page 106).
X Lift the trunk floor upwards (Y page 494).
i Depending on the equipment, tools
required for a wheel change, such as a jack
or a lug wrench, are not available in all
vehicles. Tools approved for your vehicle
are available at a qualified specialist
workshop.
Bag with the tire-changing tools 0002contains:
R Jack
R Lug wrench
R Alignment bolt
R Wheel chock
R Gloves Flat tire
Preparing the vehicle
Information on changing/mounting a wheel
(Y page 565).
Vehicle preparatio nis not necessary on
vehicles with MOExtended tires.
Your vehicle may be equipped with:
R MOExtended tires (tires with run-flat
characteristics) (Y page 527)
R a TIREFIT kit (Y page 528) X
Stop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
X Switch on the hazard warning lamps.
X Secure the vehicle against rolling away
(Y page 175).
X Bring the front wheels into the straight-
ahead position.
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the SmartKey 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 SmartKey having
been removed.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 155).
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.
Anyone 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
traffic conditions when doing so.
X Close the driver's door. MOExtended tires (tires with run-flat
properties)
G
WARNING
When driving in emergency mode, the driving
characteristics deteriorate, e.g. when
cornering, 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. Flat tire
527Breakdown assistance
Z
Stop driving in emergency mode if:
R
you hea rbanging noises.
R the vehicle starts to shake.
R you see smoke and smell rubber.
R ESP ®
is intervening constantly.
R there are tears in the sidewalls of the tire.
After driving in emergency mode, have the
wheel rims checked at a qualified specialist
workshop with regard to their further use. The
defective tire must be replaced in every case.
With MOExtended tires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is a total loss of
pressure in one or more tires.
MOExtended tires may only be used in
conjunction with an active tire pressure loss
warning system or with an active tire pressure
monitor.
The maximum driving distance is
approximately 50 miles (80 km) when the
vehicle is partially laden, and approximately
18 miles (30 km )when the vehicle is fully
laden.
In addition to the vehicle load, the driving
distance possible depends upon:
R Speed
R Road condition
R Outside temperature
The driving distance possible in run-flat mode
may be reduced by extreme driving
conditions/maneuvers, or it can be increased
through a moderate style of driving.
The maximum permissible distance which
can be driven 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).
i When changing or replacing one or all of
the tires, note the label "MOExtended".
Take note also of the size specified for the
vehicle. i
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.
AT IREFIT kit is available, for example, from
a qualified specialist workshop. TIREFI
Tkit
Using the TIREFIT kit TIREFIT is a tire sealant.
TIREFIT can be used to seal small punctures
of up to 0.16 inches (4 mm), particularly on
the tire tread. You can use TIREFIT at outside
temperatures down to
001C4 ‡ (001C20 †). 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:
R there are cuts or punctures in the tire larger
than those mentioned above.
R the wheel rim is damaged.
R you have driven at very low tire pressures
or on a flat tire.
There is a risk of an accident.
Do not drive any further. Contact a qualified
specialist workshop. G
WARNING
The tire sealant is harmful and causes
irritation. It must not come into contact with
your skin, eyes or clothing or be swallowed.
Do not inhale TIREFIT fumes. Keep tire sealant
away from children. There is a risk of injury. 528
Flat tireBreakdown assistance
If you come into contact with the tire sealant,
observe the following:
R Rinse off the tire sealant from your skin
immediately with water.
R If the tire sealant comes into contact with
youre yes, immediately rinse them
thoroughly with clean water.
R If tire sealant is swallowed ,immediately
rinse yourm outh out thoroughly and drink
plenty of water. Do not induce vomiting,
and seek medical attention immediately.
R Immediately change out of clothing which
has come into contact with tire sealant.
R If an allergic reaction occurs, seek medical
attention immediately.
! Do not operate the tire inflation
compressor for longer than eight minutes
at a time without a break. It may otherwise
overheat.
The tire inflation compressor can be
operated again once it has cooled down. TIREFIT sticker, 2-part
X
Do not remove any foreign objects which
have penetrated the tire, e.g. screws or
nails.
X Remove the tire sealant bottle, the
accompanying TIREFIT sticker and the tire
inflation compressor from the stowage well
underneath the trunk floor (Y page 526).
X Affix part 0002of the TIREFIT sticker within
the driver's field of vision.
X Affix part 0003of the TIREFIT sticker near the
valve on the wheel with the defective tire. X
Pull plug 0026with the cable and hose 0024out
of the housing.
X Screw hose 0024onto flange 0025of tire
sealant bottle 0002.
X Place tire sealant bottle 0002head
downwards into recess 0003of the tire
inflation compressor. X
Remove the cap from valve 0016on the faulty
tire.
X Screw filler hose 0017onto valve.
X Insert plug 0026into the socket of the
cigarette lighter or into a 12 Vpower socket
in your vehicle.
Observe the notes on the cigarette lighter
(Y page 496). Observe the notes on
sockets (Y page 496).
X Turn the SmartKey to position 1in the
ignition lock (Y page 155).
X Press on/offs witch0027on the tire inflation
compressor to I.
The tire inflatio ncompressor is switched
on. The tire is inflated. Flat tire
529Breakdown assistance Z
i
First, tire sealant is pumped into the tire.
The pressure can briefly rise to
approximately 500 kPa (5.0 bar/73 psi).
Do no tswitch off the tire inflation
compressor during this phase.
X Allow the tire inflation compressor to run
forf ive minutes. The tire should the nhave
attained a pressure of at least 18 0kPa
(1.8 bar/26 psi).
If at ire pressure of 180 kPa (1.8 ba r/26 psi)
has bee nattained after five minutes:
(Y page 530).
If at ire pressure of 180 kPa (1.8 ba r/26 psi)
has not bee nattained after five minutes:
(Y page 530).
i If tire sealant leaks out, allow it to dry .It
can then be removed like a laye roffilm.
If your clothes are soiled with tire sealant,
have the mcleaned with perchloroethylene
at a dry cleaner as soon as possible.
Tire pressure not reached If
at ire pressure of 180 kPa (1.8 ba r/26 psi)
has not bee nattained after five minutes:
X Switch off the tire inflation compressor.
X Unscrew the filler hose fro mthe valve of
the faulty tire.
X Very slowly drive forwards or reverse
approximately 30 ft (10 m).
X Pump up the tire again.
After a maximum of five minutes the tire
pressure must be at least 180 kPa (1.8 bar/
26 psi). G
WARNING
If the required tire pressure is not reached
after the specified time, the tire is too badly
damaged. The tire sealant cannot repair the
tire in this instance. Damaged tires and a tire
pressure that is too low can significantly
impair the vehicle's braking and driving
characteristics. There is a risk of accident.
Do not continue driving. Contact a qualified
specialist workshop. Tire pressure reached G
WARNING
At ire temporarily sealed with tire sealant
impairs the driving characteristics and is not
suitable for higher speeds. There is a risk of
accident.
You should therefore adapt your driving style
accordingly and drive carefully. Do not exceed
the specified maximum speed with a tire that
has been repaired using tire sealant.
! Residue fro mthe tire sealant may come
out of the filler hose after use. This could
cause stains.
Therefore, place the filler hose in the plastic
bag which contained the TIREFIT kit. H
Environmental note
Have the used tire sealant bottle disposed of
professionally, e.g. at aqualified specialist
workshop.
If ap ressure of 180 kPa (1.8 ba r/26 psi) has
been attained after a maximum of ten
minutes:
X Switch off the tire inflation compressor.
X Unscrew the filler hose from the valve of
the faulty tire.
X Stow the tire sealant bottle and the tire
inflation compressor.
X Pull away immediately.
The maximu mspeed for a tire sealed with
tire sealant is 50 mph (80 km/h). The upper
part of the TIREFIT sticker must be affixed
to the instrument cluster in the driver's
field of vision.
X Stop after driving for approximately ten
minutes and chec kthe tire pressure with
the tire inflation compressor.
The tire pressure must now be at least
130 kPa (1.3 bar/19 psi). G
WARNING
If the required tire pressure is not reached
after driving for a short period, the tire is too 530
Flat tireBreakdown assistance
Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 38).Important safety notes
G
WARNING
If wheels and tires of the wrong size are used,
the wheel brakes or suspension components
may be damaged. There is arisk of accident.
Always replace wheels and tires with those
that fulfill the specifications of the original
part (designation, manufacturer, model). G
WARNING
Af lat tire severely impairs the driving,
steering and braking characteristics of the
vehicle. There is a risk of accident.
Tires without run-flat characteristics:
R do not drive with aflat tire.
R immediately replace the flat tire with your
emergency spare wheel or spare wheel, or
consult a qualified specialist workshop.
Tires with run-flat characteristics:
R pay attention to the information and
warning notices on MOExtended tires (tires
with run-flat characteristics).
Accessories that are not approved for your
vehicle by Mercedes-Ben zorare not being
used correctly can impair the operating
safety. Before purchasing and using non-approved
accessories, visit a qualified specialist
workshop and inquire about:
R
suitability
R legal stipulations
R factory recommendations
Information on dimensions and types of
wheels and tires for yourv ehicle can be found
(Y page 570).
Information on air pressure for the tires on
your vehicle can be found:
R on the vehicle's Tire and Loading
Information placard on the B-pillar
R on the tire pressure label on the fuel filler
flap
R under "tire pressure" Operation
Information on driving
If the vehicle is heavily laden, chec kthe tire
pressures and correct them if necessary.
While driving, pay attention to vibrations,
noises and unusual handling characteristics,
e.g. pulling to one side. This may indicate that
the wheels or tires are damaged. If you
suspect that a tire is defective, reduce your
speed immediately. Stop the vehicle as soon
as possible to check the wheels and tires for
damage. Hidden tire damage could also be
causing the unusual handling characteristics.
If you find no signs of damage, have the tires
and wheels checked at a qualified specialist
workshop.
When parking your vehicle, make sure that
the tires do not get deformed by the curb or
other obstacles. If it is necessary to drive over
curbs, speed humps or similar elevations, try
to do so slowly and at an obtuse angle.
Otherwise, the tires, particularly the
sidewalls, may be damaged. 544
OperationWheels and tires
Selecting, mounting and replacing
tires
R Only mount tires and wheels of the same
type and make.
R Only mount tires of the correct size onto
the wheels.
R Break in new tires at moderate speeds for
the first 60 miles (100 km). They only reach
their full performance after this distance.
R Do not drive with tires which have too little
tread depth. as this significantly reduces
the traction on wet roads (hydroplaning).
R Replace the tires after six years at the
latest, regardless of wear. MOExtended tires (tires with run-flat
properties)
With MOExtended tires (tires with run flat
characteristics), you can continue to drive
your vehicle even if there is a total loss of
pressure in one or more tires.
MOExtended tires may only be used in
conjunction with an active tire pressure loss
warning system or with an active tire pressure
monitor and on wheels specifically tested by
Mercedes-Benz.
Notes on driving with MOExtended tires with
a flat tire (Y page 527).
i 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 can be obtained from a
qualified specialist workshop. Winter operation
General notes
Have your vehicle winterproofed at a qualified
specialist workshop at the onset of winter. Observe the notes in the "Changing a wheel"
section (Y page 565). Driving with summer tires
At temperatures below 45 ‡(+7 †), summer
tires lose elasticity and therefore traction and
braking power. Change the tires on your
vehicle to M+S tires. Using summer tires at
very cold temperatures could cause cracks to
form, thereby damaging the tires
permanently. Mercedes-Benz cannot accept
responsibility for this type of damage. M+S tires
G
WARNING
M+S tires with a tire tread depth of less than
000C in (4 mm) are not suitable for use in winter
and do not provide sufficient traction. There
is a risk of an accident.
M+S tires with a tread depth of less than 000C
in (4 mm) must be replaced immediately.
At temperatures below 45 ‡ (+7 †), use
winter tires or all-season tires. Both types of
tire are identified by the M+S marking.
Only winter tires bearing the 0003snowflake
symbol in addition to the M+S marking
provide the best possible grip in wintry road
conditions.
Only these tires will allow driving safety
systems such as ABS and ESP ®
to function
optimally in winter. These tires have been
developed specifically for driving in snow.
Use M+S tires of the same make and tread on
all wheels to maintain safe handling
characteristics.
Always observe the maximu mpermissible
speed specified for the M+S tires you have
mounted. 546
Winter operationWheels and tires