run flat MERCEDES-BENZ CLS 2014 User Guide

Check
Tirepressure specifications
Important safety notes
GWARNING
Tireswithtirepressuresthatare toolow or
toohigh are associated withthefollowing
hazards:
Rthey can burst, in particular if thevehicle is
heavily laden or when driven at high
speeds.
Rthetires can wear excessively and/or
unevenly, whichcan severely impairtire
traction.
Rthe driving, steeringand braking
characteristics may be severely impaired.
There isarisk of accident.
Follow recommended tireinflation pressures
and checkthe pressure of all the tires
including the spare wheel:
Rmonthly, at least
Rif the load changes
Rbefore beginningalong journey
Runder different operating conditions,e.g.
off-road driving
If necessary, correct the tire pressure.
iThe specifications on the sample Tire and
Loading Information placard and tire
pressure tables are examples. Tire
pressure specifications are vehicle-specific
and may deviate from the data shown here.
The tire pressure specifications that are
valid for your vehicle can be found on the
Tire and Loading Information placard and
tire pressure table on the vehicle.
General notes
The recommended tire pressures for the tires
mounted at the factory can be found on the
labelsdescribed here.
Operation with the emergency spare
wheel(Ypage 367).
Further information on tire pressures can be
obtained ataqualified specialist workshop.
Tire and Loading Information placard
Recommended tire pressures
The Tire and Loading Information placard is
on the B-pillar on the driver's side
(Ypage 345).
The Tire and Loading Information placard
contains the recommended tire pressures for
cold tires. The recommended tire pressures
are valid for the maximum permissible load
and up to the maximum permissible vehicle
speed.
Tire pressuretable
The tire pressure table is on the inside of the
fuel filler flap.
Example: tire pressure table for all tires permittedfor this vehicle by the factory
The tire pressure table contains the
recommended pressures for cold tires for
various operating conditions, i.e. differing
load and speed conditions.
338Check
Wheels and tires

when adjustingthetirepressure
(Ypage 338).
iThe actual values for tires are vehicle-
specific and may deviatefromthe values in
the illustration.
Checking the tire pressures
Important safety notes
Observe the notes on tire pressure
(Ypage 338).
Information on air pressure for the tires on
your vehicle can be found:
Ron the vehicle's Tire and Loading
Information placard on the B-pillar
(Ypage 345)
Ron the tire pressure label on the fuel filler
flap (Ypage 165)
Rin the "Tire pressure" section
Runder "Tire pressure" (Ypage 338)
Checking tire pressures manually
To determine and set the correct tire
pressure, proceed as follows:
XRemove the valve cap of the tire that is to
be checked.
XPress the tire pressure gauge securely onto
the valve.
XRead the tire pressure and compare it with
the recommended value on the Tire and
Loading Information placard (Ypage 338).
XIf the tire pressure is too low, increase it to
the recommended value.
XIf the tire pressure is too high, release air
by pressing down the metal pin in the valve.
Use the tip ofapen, for example. Then,
check the tire pressure again using the tire
pressure gauge.
XScrew the valve cap onto the valve.
XRepeatthese steps for the other tires.
Tire pressureloss warning system
(Canada only)
General notes
While the vehicle is in motion, the tire
pressure loss warning system monitors the
set tire pressure using the rotational speed of
the wheels. This enables the system to detect
significant pressure loss inatire. If the speed
of rotation ofawheel changes asaresult of
aloss of pressure,acorresponding warning
message will appearinthe multifunction
display.
You can recognizethe tire pressure loss
warning by theRun Flat Indicator
Active Press 'OK' to Restartmessage
which appears in theServ.menu of the
multifunction display. Further information on
the message displaycan be found under
"Restarting the tire pressure loss warning
system" section (Ypage 342).
Important safety notes
The tire pressure warning system does not
warn you of an incorrectly set tire pressure.
Observe the notes on the recommended tire
pressure (Ypage 338).
The tire pressure loss warning does not
replace the need to regularly check the tire
pressure. An even loss of pressure on several
tires at the same time cannot be detected by
the tire pressure loss warning system.
The tire pressure monitor is not able to warn
you ofasudden loss of pressure, e.g. if the
tire is penetrated byaforeign object.Inthe
event ofasudden loss of pressure, bring the
vehicle toahalt by braking carefully. Avoid
abrupt steering maneuvers.
The function of the tire pressure loss warning
system is limited or delayed if:
Rsnow chains are mounted on your vehicle's
tires.
Rroad conditionsare wintry.
Ryou are driving on sand or gravel.
Check341
Wheels and tires
Z

Ryou adoptaverysporty driving style
(cornering at high speeds or driving with
high rates of acceleration).
Ryou are driving withaheavy load(in the
vehicleoronthe roof).
Restarting the tire pressure loss
warningsystem
Restart the tire pressure loss warning system
if you have:
Rchanged the tire pressure
Rchanged the wheels or tires
Rmounted new wheels or tires
XBefore restarting, make sure that the tire
pressures are set properly on all four tires
for the respective operating conditions.
The recommendedtire pressures can be
found on the Tire and Loading Information
placard on the B-pillar on the driver's side
or the tire pressure table on the fuel filler
flap.The tire pressure loss warning system
can only give reliablewarnings if you have
set the correct tire pressure. If an incorrect
tire pressure is set, these incorrectvalues
will be monitored.
XAlsoobservethenotesinthesectionontire
pressures (Ypage 338).
XMake sure that the SmartKey is in position
2in the ignition lock (Ypage 147).
XPress the\norbutton on the
steeringwheel to selecttheServ.menu.
XPress theorbutton on the
steering wheel to select theTire
Pressuremenu.
XPress thebutton.
TheRun Flat Indicator Active
Press 'OK' to Restartmessage
appears in the multifunction display.
If you wish to confirm the restart:
XPress thebutton.
TheTire Pressure Now OK?message
appears in the multifunction display.
XPress theorbutton to select
Yes.
XPress thebutton.
TheRun Flat Indicator Restarted
message appears in the multifunction
display.
Afterateach-in period, the tire pressure
loss warning system will monitor the set
tire pressures of all four tires.
If you wish to cancel the restart:
XPress thebutton.
or
XWhen theTire Pressure Now OK?
message appears, press the
orbutton to selectCancel.
XPress thebutton.
The tire pressure values stored at the last
restart will continue to be monitored.
Tire pressuremonitor
General notes
Ifatire pressure monitor is installed, the
vehicle's wheels have sensors that monitor
the tire pressures in all four tires. The tire
pressure monitor warns you if the pressure
drops in one or more of the tires. The tire
pressure monitor only functions if the correct
sensors are installed on all wheels.
Information on tire pressures is displayed in
the multifunction display. Afterafew minutes
of driving, the current tire pressure of each
tire is shown in theServicemenu of the
multifunction display. For further information
on displaying this message, refer to the
"Checking the tire pressure electronically"
section (Ypage 344).
342Check
Wheels and tires

Occupant distribution
The distribution of occupantsinavehicleat
their designated seating positions.
Total load limit
Rated cargo and luggageloadplus
68 kilograms (150 lb) multiplied by the
number of seats in the vehicle.
Changingawheel
Flat tire
You can find information on whattodointhe
event ofaflat tire in the "Breakdown
assistance" section (Ypage 321).
Information on driving with MOExtended tires
in the event ofaflat tire can be found under
"MOExtended tires (tires with run-flat
characteristics" (Ypage 321).
Vehicle with emergency sparewheel:in
the event ofaflat tire, the emergencyspare
wheel is mounted as described under
"Mountingawheel" (Ypage 358).
Rotating the wheels
GWARNING
Interchangingthe front and rear wheels may
severely impair the driving characteristics if
the wheels or tires have different dimensions.
The wheel brakes or suspension components
may also be damaged. There isarisk of
accident.
Rotate front and rear wheels only if the wheels
and tires are of the same dimensions.
!On vehicles equipped withatire pressure
monitor, electronic components are
located in the wheel.
Tire-mounting tools should not be used
near the valve. This could damage the
electronic components.
Only have tires changed ataqualified
specialist workshop.
Always observe the instructions and safety
notes in the "Mountingawheel" section
(Ypage 358).
The wear patternsonthe front and rear tires
differ, depending on the operating conditions.
Rotate the wheels beforeaclear wear pattern
has formed on the tires. Front tires typically
wear more on the shoulders and the rear tires
in the center.
If your vehicle's tire configuration allows, you
can rotate the wheels according to the
intervals in the tire manufacturer's warranty
book in your vehicle documents. If this is not
available, the tires should then be replaced
every 3,000 to 6,000 miles (5,000 to
10,000 km), or earlier if the tire wear requires
this. Do not change the direction of wheel
rotation.
Cleanthe contact surfaces of the wheel and
the brake disc thoroughly every timeawheel
is interchanged. Check the tire pressure and,
if necessary, restart the tire pressure loss
warning system or the tire pressure monitor.
Direction of rotation
Tires withaspecified direction of rotation
have additional benefits, e.g. if there isarisk
of hydroplaning. You will only gain these
benefits if the correct direction of rotation is
maintained.
An arrow on the sidewall of the tire indicates
its correct direction of rotation.
Storing wheels
Storewheels that are not being used inacool,
dry and preferably dark place. Protect the
tires from oil, grease, gasoline and diesel.
Cleaningthe wheels
GWARNING
The water jet fromacircular jet nozzle (dirt
blasters) can cause invisible exterior damage
Changingawheel357
Wheels and tires
Z

Securing the vehicle on slight downhillgradients
XOn light downhill gradients:place
chocks or othersuitableitemsinfront of
the wheelsofthe front and rearaxle.
Raisingthe vehicle
GWARNING
If youdonot positionthe jack correctly at the
appropriate jackingpoint of the vehicle, the
jack could tip over with the vehicle raised.
There isarisk of injury.
Only position the jack at the appropriate
jackingpoint of the vehicle. The base of the
jack must be positioned vertically, directly
under the jackingpoint of the vehicle.
!The jack is designed exclusively for
jackingupthe vehicle at the jackingpoints.
Otherwise, your vehicle could be damaged.
The following must be observed when raising
the vehicle:
Rto raise the vehicle, only use the vehicle-
specific jack that has been tested and
approved by Mercedes-Benz. If used
incorrectly, the jack could tip over with the
vehicle raised.
Rthe jack is designed only to raise and hold
the vehicle forashort time whileawheel
is being changed. It is not suited for
performing maintenancework under the
vehicle.
Ravoid changing the wheel on uphill and
downhill slopes.
Rbefore raising the vehicle, secure it from
rolling away by applying the parking brake
and insertingwheel chocks. Never
disengage the parking brake while the
vehicle is raised.
Rthe jack must be placed onafirm, flat and
non-slip surface. Onaloose surface, a
large, load-bearing underlay must be used.
Onaslippery surface,anon-slip underlay
must be used, e.g. rubber mats.
Rdo not use wooden blocks or similar
objectsasajack underlay.Otherwise, the
jackwill not be able to achieveits load-
bearingcapacity due to the restricted
height.
Rmakesure that the distancebetween the
underside of the tires and the grounddoes
not exceed 1.2in(3cm).
Rnever place your hands and feet under the
raised vehicle.
Rnever lie under the raised vehicle.
Rnever start the engine when the vehicle is
raised.
Rnever open or closeadoor or the trunk lid
when the vehicle is raised.
Rmakesure that no persons are present in
the vehicle when the vehicle is raised.
XUsinglug wrench,loosen the boltson
the wheel you wish to change by about one
full turn. Do not unscrew the bolts
completely.
Changingawheel359
Wheels and tires
Z

XStow the jack and the restofthe vehicle
toolsinthe trunk again.
XCheck the tire pressure of the newly
mounted wheel and adjustitifnecessary.
Observe the recommended tire pressure
(Ypage 338).
iVehicles with tire pressure monitor: all
wheels mounted must be equipped with
functioning sensors.
Wheel and tirecombinations
General notes
!For safety reasons, Mercedes-Benz
recommends that you only use tires and
wheels which have been approved by
Mercedes-Benz specifically for your
vehicle.
These tires have been specially adapted for
use with the control systems, such as ABS
or ESP®,and are marked as follows:
RMO=Mercedes-BenzOriginal
RMOE=Mercedes-BenzOriginal Extended
(tires featuring run-flat characteristics)
RMO1=Mercedes-Benz Original (only
certain AMG tires)
Mercedes-BenzOriginal Extended tires
may only be usedonwheels that have been
specifically approved by Mercedes-Benz.
Only use tires, wheels or accessories
tested and approved by Mercedes-Benz.
Certain characteristics, e.g. handling,
vehiclenoise emissions or fuel
consumption, may otherwise be adversely
affected. In addition, when driving with a
load, tire dimension variations couldcause
the tires to come into contact with the
bodywork and axle components. This could
result in damage to the tires or the vehicle.
Mercedes-Benz accepts no liability for
damage resulting from the use of tires,
wheels or accessories other than those
tested and approved.
Information on tires, wheels and approved
combinations can be obtained from any
qualified specialist workshop.
Overviewofabbreviations usedinthe
following tire tables:
RBA: both axles
RFA: front axle
RRA: rear axle
The recommended pressures for various
operating conditionscan be found:
Ron the Tire and Loading Information placard
with the recommended tire pressures on
the B-pillar on the driver's side
Rin the tire pressure table on the inside of
the fuel filler flap
Observe the notes on recommended tire
pressures under various operating conditions
(Ypage 338).
Check tire pressures regularly,and only when
the tires are cold. Comply with the
maintenancerecommendations of the tire
manufacturer in the vehicle document wallet.
Notes on the vehicle equipment–always
equip the vehicle with:
Rtires of the same size onagiven axle (left/
right)
Rthe same type of tires atagiven time
(summer tires, winter tires, MOExtended
tires)
Vehicles with MOExtendedtires are not
equipped withaTIREFIT kit at the factory. It
is therefore recommendedthat you
additionally equip your vehicle withaTIREFIT
kit if you mounttires that do not feature run-
flat properties,e.g. winter tires.ATIREFIT kit
may be obtained fromaqualified specialist
workshop.
iNot all wheeland tire combinations are
available at the factory for all countries.
iOn the following pages, you can find
information on approved wheelrims and
tiresizesfor equipping your vehicle with
winter tires. Winter tires are not available
362Wheel and tirecombinations
Wheels and tires

Tires
CLS550
Summertires
R18
TiresAlloywheels
FA: 255/40 R18 99YXLMOExtended2
RA: 285/35 R18 97YMOExtended2, 3
FA: 8.5Jx18H2
Wheeloffset: 1.36 in (34.5 mm)
RA: 9.5Jx18H2
Wheeloffset: 1.89 in (48 mm)
R19
TiresAlloy wheels
FA: 255/35 R19 96YXL
RA: 285/30 R19 98YXL3
FA: 8.5Jx19H2
Wheeloffset: 1.36 in (34.5 mm)
RA: 9.5Jx19H2
Wheeloffset: 1.89 in (48 mm)
All-weather tires
R18
TiresAlloy wheels
FA: 255/40 R18 99HXLM+S
RA: 285/35 R18 97HM+S3
FA: 8.5Jx18H2
Wheeloffset: 1.36 in (34.5 mm)
RA: 9.5Jx18H2
Wheeloffset: 1.89 in (48 mm)
Winter tires
R18
TiresAlloy wheels
BA: 255/40 R18 99VXLM+SBA: 8.5Jx18H2
Wheeloffset: 1.36 in (34.5 mm)
BA: 255/40 R18 99 V
M+SMOExtended2BA: 8.5Jx18H2
Wheeloffset: 1.36 in (34.5 mm)
2MOExtended tires (tires featuring run-flatcharacteristics) only in combination with an active tire pressureloss warning system or tire pressure monitor.3Use of snow chains is not permitted. Observe the notes under "Snow chains".
364Wheel and tire combinations
Wheels and tires

CLS 550 4MATIC
Summer tires
R18
TiresAlloy wheels
FA:255/40R18 99YXLMOExtended2
RA: 285/35 R18 97YMOExtended2, 3
FA:8.5Jx18H2
Wheeloffset:1.36in(34.5 mm)
RA: 9.5Jx18H2
Wheeloffset:1.89in(48 mm)
R19
TiresAlloy wheels
FA:255/35R19 96YXL
RA: 285/30 R19 98YXL3
FA:8.5Jx19H2
Wheeloffset:1.36in(34.5 mm)
RA: 9.5Jx19H2
Wheeloffset:1.89in(48 mm)
All-weather tires
R18
TiresAlloy wheels
FA:255/40R18 99HXLM+S
RA: 285/35 R18 97HM+S3
FA:8.5Jx18H2
Wheeloffset:1.36in(34.5 mm)
RA: 9.5Jx18H2
Wheeloffset:1.89in(48 mm)
Winter tires
R18
TiresAlloy wheels
BA:255/40R18 99VXLM+SBA:8.5Jx18H2
Wheeloffset:1.36in(34.5 mm)
BA:255/40R18 99 V
M+SMOExtended2BA:8.5Jx18H2
Wheeloffset:1.36in(34.5 mm)
2MOExtended tires (tires featuringrun-flat characteristics) only in combinationwith an active tire pressureloss warningsystemortire pressure monitor.3Use of snow chainsisnot permitted. Observe the notes under "Snowchains".
Wheel and tirecombinations365
Wheels and tires
Z

the systemmay still display thetire
pressure of theremovedwheel forafew
minutes. The value displayed for the
mountedemergencysparewheel is notthe
same as the current tire pressure of the
emergency spare wheel.
"Minispare" emergency sparewheel/
collapsible sparewheel
Removing the "Minispare" emergency
sparewheel
The emergency spare wheel can be found in
the stowage well under the trunk floor.
XLift the trunk floor upwards (Ypage 283).
XTurn stowage traycounter-clockwise
and remove together with vehicle tool kit
tray.
XRemove "Minispare" emergency spare
wheel$.
Removing the collapsible sparewheel
(AMG vehicles)
The emergency spare wheel can be found in
the stowage wellunderthe trunk floor.
XLift the trunk floor upwards (Ypage 283).
XReach into cutoutin the tool holder and
lift it up.
XRemove collapsiblespare wheel.
Always observe the instructions and safety
notes in the "Mountingawheel" section
(Ypage 358).
Stowingaused collapsible spare
wheel
!Only place the collapsible spare wheel in
the vehicle when it is dry. Otherwise,
moisture may get into the vehicle.
Take the following steps to stowaused
collapsible spare wheel. It will not otherwise
install into the spare wheel well. Mercedes-
Benz recommends that you have this work
performed ataqualified specialist workshop,
e.g. at an authorized Mercedes-Benz Center.
XUnscrew the valve cap from the valve.
XUse the back of the valve cap to unscrew
the valve insert from the valve and release
the air.
iFully deflating the tires can takeafew
minutes.
XScrew the valve insert back into the valve.
XScrew the valve cap back on.
XRemove the protective sheet from the
vehicle tool kit and pull it over the
collapsible spare wheel.
XStow the collapsible spare wheel in the
emergency spare wheel well under the
trunk.
Inflating the collapsible sparewheel
!Inflate the collapsible spare wheel using
the tire inflation compressor before
lowering the vehicle. The wheel rim could
otherwise be damaged.
368Emergency sparewheel
Wheels and tires