2014 MERCEDES-BENZ CLS-Class run flat

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 not ethat your vehicle may
not be equipped with all features
described. This also applies to safety-
related system sand functions.
i Read the information on qualified
specialist workshops: (Y page 26).Important safet
ynotes 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 an
accident.
Always replac ewheels and tires with those
that fulfill the specifications of the original
part.
When replacing wheels, make sure to use the
correct:
R designation
R model
When replacing tires, make sure to use the
correct:
R designation
R manufacturer
R model G
WARNING
Af lat tir eseverely impairs the driving,
steerin gand braking characteristics of the
vehicle. There is arisk of accident.
Tires without run-flat characteristics:
R do not drive with aflat tire.
R immediately replac ethe flat tir ewith your
emergenc yspare wheel or spare wheel, or
consult aqualified specialist workshop. Tires with run-flat characteristics:
R
pay attention to the information and
warnin gnotices on MOExtended tires (tires
with run-flat characteristics).
Accessories that are not approved for your
vehicle by Mercedes-Ben zorthat are not
being used correctly can impair the operating
safety.
Before purchasing and using non-approved
accessories, visit aqualified specialist
workshop and inquire about:
R suitability
R legal stipulations
R factory recommendations
Information on the dimensions and types of
wheels and tires for your vehicle can be found
in the "Wheel/tire combinations" section
(Y page 362).
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
(Y page 345)
R on the tire pressure label on the fuel filler
flap (Y page 165)
R under "Tire pressure" (Y page 338) Operation
Information on driving
If the vehicle is heavily loaded, check the 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 atire 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 334
OperationWheels and tires

Bar indicator
001Afor trea dwearisi ntegrated
into the tire tread.
Treadwear indicator s(TWI) are required by
law. Six indicator sare positioned on the tire
tread. The yare visible once the trea ddepth
is approximately 0014in (1.6 mm). If this is the
case ,the tire is so worn that it mus tbe
replaced. Selecting, mounting and replacing
tires
R Only mount tires and wheels of the same
type and make.
Exception: it is permissible to install a
different type or make in the event of aflat
tire. Observe the "MOExtended tires (tires
with run-flat characteristics" section
(Y page3 21).
R Only mount tires of the correct size onto
the wheels.
R Break in new tires at moderate speeds for
the first 60 mile s(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.
Observe the notes on the emergency spare
wheel (Y page 367). 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 atotal 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
af
lat tire (Y page 321).
i Vehicles equipped with MOExtended tires
are not equipped with aTIREFIT kit at the
factory. It is therefore recommended that
you additionall yequip your vehicle with a
TIREFIT kit if you mount tires that do not
feature run-flat properties, e.g. winter tires.
AT IREFIT kit can be obtained from a
qualified specialist workshop. Winter operation
General notes
Have your vehicle winterproofed at aqualified
specialist workshop at the onset of winter.
Observe the notes in the "Changing awheel"
section (Y page 357). Driving with summer tires
At temperatures below 45 ‡(+7 †), summer
tires lose elasticity significantly ,and
therefore traction and braking power as well.
Change the tires on you rvehicle to
M+S tires. Using summer tires at very cold
temperatures could cause crack stoform,
thereby damaging the tires permanently.
Mercedes-Benz cannot accept responsibility
for this type of damage. M+S tires
G
WARNING
M+S tires with atiret read dept hofless than
001F in (4 mm )are no tsuitable for use in winter
and do no tprovide sufficient traction .There
is ar iskofana ccident.
M+S tires wit hatread dept hofless than 001F
in (4 mm )must be replace dimmediately.
At temperatures below 45 ‡(+7 †), use
winter tires or all-weather tires. Both type sof
tir ea re identified by th eM+S marking. 336
Winte
roperationWheels and tires

when adjustin
gthe tirep ressure
(Y page 338).
i The actual values for tires are vehicle-
specific and may deviat efromt he values in
the illustration. Checking the tire pressures
Important safety notes Observe the notes on tire pressure
(Y
page 338).
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
(Y page 345)
R on the tire pressure label on the fuel filler
flap (Y page 165)
R in the "Tire pressure" section
R under "Tire pressure" (Y page 338)
Checking tire pressures manually To determine and set the correct tire
pressure, proceed as follows:
X Remove the valve cap of the tire that is to
be checked.
X Press the tire pressure gauge securely onto
the valve.
X Read the tire pressure and compare it with
the recommended value on the Tire and
Loading Information placard (Y page 338).
X If the tire pressure is too low, increase it to
the recommended value.
X If the tire pressure is too high, release air
by pressing down the metal pin in the valve.
Use the tip of apen, for example. Then,
check the tire pressure again using the tire
pressure gauge.
X Screw the valve cap onto the valve.
X Repeatt hese steps for the other tires. Tire pressurel
oss 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 in
atire. If the speed
of rotation of awheel changes as aresult of
al oss of pressure, acorresponding warning
message will appearint he multifunction
display.
You can recognizet he tire pressure loss
warning by the Run Flat Indicator Active Press 'OK' to Restart message
which appears in the Serv. menu of the
multifunction display. Further information on
the message displayc an be found under
"Restarting the tire pressure loss warning
system" section (Y page 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 (Y
page 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 of asudden loss of pressure, e.g. if the
tire is penetrated by aforeign object.Int he
event of asudden loss of pressure, bring the
vehicle to ahalt by braking carefully. Avoid
abrupt steering maneuvers.
The function of the tire pressure loss warning
system is limited or delayed if:
R snow chains are mounted on your vehicle's
tires.
R road conditionsa re wintry.
R you are driving on sand or gravel. Check
341Wheels and tires Z

R
you adop taverys porty driving style
(cornering at high speeds or driving with
high rates of acceleration).
R you are driving with aheavy load( in the
vehicl eoront he roof).
Restarting the tire pressure loss
warnin gsystem Restart the tire pressure loss warning system
if you have:
R changed the tire pressure
R changed the wheels or tires
R mounted new wheels or tires
X Before restarting, make sure that the tire
pressures are set properly on all four tires
for the respective operating conditions.
The recommende dtire 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 reliablew arnings if you have
set the correct tire pressure. If an incorrect
tire pressure is set, these incorrectv alues
will be monitored.
X Als oobserv ethe note sinthesectio nontire
pressures (Y page 338).
X Make sure that the SmartKey is in position
2in the ignition lock (Y page 147).
X Press the 000Aor0004 button on the
steerin gwheel to selec tthe Serv. menu.
X Press the 0006or0005 button on the
steering wheel to select the TirePressure menu.
X Press the 000Cbutton.
The Run Flat Indicator Active Press 'OK' to Restart message
appears in the multifunction display. If you wish to confirm the restart:
X
Press the 000Cbutton.
The Tire Pressure Now OK? message
appears in the multifunction display.
X Press the 0006or0005 button to select
Yes .
X Press the 000Cbutton.
The Run Flat Indicator Restarted message appears in the multifunction
display.
After
ateach-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:
X Press the 0002button.
or
X When the Tire Pressure Now OK? message appears, press the
0006
or 0005 button to select Cancel .
X Press the 000Cbutton.
The tire pressure values stored at the last
restart will continue to be monitored. Tire pressurem
onitor
General notes If
at ire 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. After afew minutes
of driving, the current tire pressure of each
tire is shown in the Service menu of the
multifunction display. For further information
on displaying this message, refer to the
"Checking the tire pressure electronically"
section (Y page 344). 342
CheckWheels and tires

Occupant distribution
The distribution of occupant
sinavehicleat
their designated seating positions.
Total load limit
Rated cargo and luggagel oadp lus
68 kilograms (150 lb) multiplied by the
number of seats in the vehicle. Changing
awheel Flat tire
You can find information on wha ttodointhe
event of aflat tire in the "Breakdown
assistance" section (Y page 321).
Information on driving with MOExtended tires
in the event of aflat tire can be found under
"MOExtended tires (tires with run-flat
characteristics" (Y page 321).
Vehicle with emergency sparew heel:in
the event of aflat tire, the emergenc yspare
wheel is mounted as described under
"Mounting awheel" ( Ypage 358). Rotating the wheels
G
WARNING
Interchangin gthe 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 is arisk of
accident.
Rotate front and rear wheels only if the wheels
and tires are of the same dimensions.
! On vehicles equipped with atire 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 at aqualified
specialist workshop. Always observe the instructions and safety
notes in the "Mounting
awheel" section
(Y page 358).
The wear patternsont he front and rear tires
differ, depending on the operating conditions.
Rotate the wheels before aclear 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.
Cleant he contact surfaces of the wheel and
the brake disc thoroughly every time awheel
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 with aspecified direction of rotation
have additional benefits, e.g. if there is arisk
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
Storew heels that are not being used in acool,
dry and preferably dark place. Protect the
tires from oil, grease, gasoline and diesel. Cleaningt
he wheels G
WARNING
The water jet from acircular jet nozzle (dirt
blasters) can cause invisible exterior damage Changing
awheel
357Wheels and tires
Z

Securing the vehicle on slight downhil
lgradients
X On light downhill gradients: place
chocks or othe rsuitabl eitem sinf ront of
the wheel softhe front and rea raxle.
Raisin gthe vehicle G
WARNING
If yo udon ot positio nthe jack correctly at the
appropriate jackingp oint of the vehicle, the
jack could tip over with the vehicle raised.
There is arisk of injury.
Only position the jack at the appropriate
jackingp oint of the vehicle. The base of the
jack must be positioned vertically, directly
under the jackingp oint of the vehicle.
! The jack is designed exclusively for
jackingupt he vehicle at the jackingp oints.
Otherwise, your vehicle could be damaged.
The following must be observed when raising
the vehicle:
R to 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.
R the jack is designed only to raise and hold
the vehicle for ashort time while awheel
is being changed. It is not suited for
performing maintenancew ork under the
vehicle.
R avoid changing the wheel on uphill and
downhill slopes. R
before raising the vehicle, secure it from
rolling away by applying the parking brake
and insertingw heel chocks. Never
disengage the parking brake while the
vehicle is raised.
R the jack must be placed on afirm, flat and
non-slip surface. On aloose surface, a
large, load-bearing underlay must be used.
On aslippery surface, anon-slip underlay
must be used, e.g. rubber mats.
R do not use wooden blocks or similar
objectsasaj ack underlay.O therwise, the
jac kw ill not be able to achiev eits load-
bearin gcapacity due to the restricted
height.
R mak esure that the distanc ebetween the
underside of the tires and the groun ddoes
not exceed 1. 2in(3cm).
R never place your hands and feet under the
raised vehicle.
R never lie under the raised vehicle.
R never start the engine when the vehicle is
raised.
R never open or clos eadoor or the trunk lid
when the vehicle is raised.
R mak esure that no persons are present in
the vehicle when the vehicle is raised. X
Usin glug wrench 001A,loosen the bolt son
the wheel you wish to change by about one
full turn. Do not unscrew the bolts
completely. Changin
gawheel
359Wheels and tires Z

X
Stow the jack and the res tofthe vehicle
tool sint he trunk again.
X Check the tire pressure of the newly
mounted wheel and adjus titifnecessary.
Observe the recommended tire pressure
(Y page 338).
i Vehicles with tire pressure monitor: all
wheels mounted must be equipped with
functioning sensors. Wheel and tirec
ombinationsGeneral 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 ®
,a nd are marked as follows:
R MO =Mercedes-BenzO riginal
R MOE =Mercedes-BenzO riginal Extended
(tires featuring run-flat characteristics)
R MO1 =Mercedes-Benz Original (only
certain AMG tires)
Mercedes-BenzO riginal Extended tires
may only be usedonw heels 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,
vehicl enoise emissions or fuel
consumption, may otherwise be adversely
affected. In addition, when driving with a
load, tire dimension variations coul dcause
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.
Overvie wofabbreviations usedint he
following tire tables:
R BA: both axles
R FA: front axle
R RA: rear axle
The recommended pressures for various
operating conditionsc an be found:
R on the Tire and Loading Information placard
with the recommended tire pressures on
the B-pillar on the driver's side
R in the tire pressure table on the inside of
the fuel filler flap
Observe the notes on recommended tire
pressures under various operating conditions
(Y page 338).
Check tire pressures regularly,a nd only when
the tires are cold. Comply with the
maintenancer ecommendations of the tire
manufacturer in the vehicle document wallet.
Notes on the vehicle equipment –always
equip the vehicle with:
R tires of the same size on agiven axle (left/
right)
R the same type of tires at agiven time
(summer tires, winter tires, MOExtended
tires)
Vehicles with MOExtende dtires are not
equipped with aTIREFIT kit at the factory. It
is therefore recommende dthat you
additionally equip your vehicle with aTIREFIT
kit if you moun ttires that do not feature run-
flat properties ,e.g. winter tires. ATIREFIT kit
may be obtained from aqualified specialist
workshop.
i Not all wheela nd tire combinations are
available at the factory for all countries.
i On the following pages, you can find
information on approved wheelr ims and
tir es izesfor equipping your vehicle with
winter tires. Winter tires are not available 362
Wheel and tir
ecombinationsWheels and tires

CLS 550 4MATIC
Summer tires
R18
Tires Alloy wheels
FA
:255/4 0R18 99 YXLM OExtended 2
RA: 285/35 R18 97 YMOExtended 2, 3 FA
:8.5Jx1 8H2
Whee loffset :1.36i n( 34.5 mm)
RA: 9. 5Jx18H2
Whee loffset :1.89i n( 48 mm) R19
Tires Alloy wheels
FA
:255/3 5R19 96 YXL
RA: 285/30 R19 98 YXL3 FA
:8.5Jx1 9H2
Whee loffset :1.36i n( 34.5 mm)
RA: 9. 5Jx19H2
Whee loffset :1.89i n( 48 mm) All-weather tires
R18
Tires Alloy wheels
FA
:255/4 0R18 99 HXLM +S
RA: 285/35 R18 97 HM+S3 FA
:8.5Jx1 8H2
Whee loffset :1.36i n( 34.5 mm)
RA: 9. 5Jx18H2
Whee loffset :1.89i n( 48 mm) Winter tires
R18
Tires Alloy wheels
BA
:255/4 0R18 99 VXLM +S0012 BA
:8.5Jx1 8H2
Whee loffset :1.36i n( 34.5 mm) BA
:255/4 0R18 99 V
M+S 0012MOExtended 2 BA
:8.5Jx1 8H2
Whee loffset :1.36i n( 34.5 mm) 2
MOExtended tires (tires featurin grun-flat characteristics) only in combinatio nwith an active tire pressure
loss warnin gsyste mort ire pressure monitor.
3 Use of snow chain sisnot permitted. Observe the notes under "Sno wchains". Wheel and tir
ecombinations
365Wheels and tires Z