lock MERCEDES-BENZ CLS-Class 2014 W218 Owner's Manual

and wheels checked at
aqualified specialist
workshop.
When parking your vehicle ,makes ure that
th et ires do no tget 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. Regular checking of wheels and tires
G
WARNING
Damaged tires can cause tire inflation
pressure loss. As aresult, you could lose
control of your vehicle. There is arisk of
accident.
Check the tires regularly for signs of damage
and replace any damaged tires immediately.
Regularly chec kthe wheels and tires of your
vehicle for damage at least once amonth, as
well as after driving off-road or on rough
roads. Damaged wheels can cause aloss of
tire pressure. Pay particular attention to
damage such as:
R cuts in the tires
R punctures
R tears in the tires
R bulges on tires
R deformation or severe corrosion on wheels
Regularly check the tire tread depth and the
condition of the tread across the whole width
of the tire (Y page 335). If necessary, turn
the front wheels to full lock in order to inspect
the inner side of the tire surface.
All wheels must have avalve cap to protect
the valve against dirt and moisture. Do not
mount anything onto the valve other than the
standard valve cap or other valve caps
approved by Mercedes-Ben zfor your vehicle.
Do not use any other valve caps or systems,
e.g. tire pressure monitoring systems. Regularly check the pressure of all the tires
particularly prior to long trips. Adjust the tire
pressure as necessary (Y
page 338).
Observe the notes on the emergenc yspare
wheel (Y page 367).
The service life of tires depends, among other
things, on the following factors:
R Drivin gstyle
R Tire pressure
R Distance covered Important safety notes on the tire
tread
G
WARNING
Insufficient tire tread will reduce tire traction.
The tire is no longer able to dissipate water.
This means that on wet road surfaces, the risk
of hydroplaning increases, in particular where
speed is not adapted to suit the driving
conditions. There is arisk of accident.
If the tire pressure is too high or too low, tires
may exhibit different levels of wear at
different locations on the tire tread. Thus, you
should regularly check the tread depth and
the condition of the tread across the entire
width of all tires.
Minimum tire tread depth for:
R Summer tires: 0015in (3 mm)
R M+S tires: 001Fin (4 mm)
For safety reasons, replace the tires before
the legally prescribed limit for the minimum
tire tread depth is reached. Operation
335Wheels 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

The tire pressure monitor has
ayellow
warning lamp in the instrument cluster for
indicatin gapressure loss or malfunction.
Whether the warning lamp flashes or lights up
indicates whether atire pressure is too low or
the tire pressure monitor is malfunctioning:
R if the warning lamp is lit continuously, the
tire pressure on one or more tires is
significantly too low. The tire pressure
monitor is not malfunctioning.
R if the warning lamp flashes for around a
minute and then remains lit constantly, the
tire pressure monitor is malfunctioning.
If the tire pressure monitor is malfunctioning,
it may take more than ten minutes for the tire
pressure warning lamp to inform you of the
malfunction by flashing for approximately one
minute and then remaining lit. When the
malfunction has been rectified, the tire
pressure warning lamp goes out after afew
minutes of driving.
The tire pressure values indicated by the on-
board computer may differ from those
measured at agas station with apressure
gauge. The tire pressures shown by the on-
board computer refer to those measured at
sea level. At high altitudes, the tire pressure
values indicated by apressure gauge are
higher than those shown by the on-board
computer .Inthis case, do not reduce the tire
pressures.
The operation of the tire pressure monitor can
be affected by interference from radio
transmitting equipment (e.g. radio
headphones, two-way radios) that may be
being operated in or near the vehicle.
Checking the tire pressure
electronically X
Make sure that the SmartKey is in position
2(Y page 147) in the ignition lock .
X Press the 000Aor0004 button on the
steering wheel to select the Serv. menu.X
Press the 0006or0005 button to select
Tire Pressure .
X Press the 000Cbutton.
The current tire pressure of each tire is
shown in the multifunction display.
If the vehicle was parked for longer than
20 minutes ,the Tire pressures will be
displayed after driving
afew minutes message is shown.
After ateach-in process, the tire pressure
monitor automatically detects new wheels or
new sensors. As long as aclear allocation of
the tire pressure value to the individual
wheels is not possible, the Tire Pressure Monitor Active displaym
essage is shown
instead of the tire pressure display. The tire
pressures are already being monitored.
i If an emergency spare wheel is mounted,
the system may continue to show the tire
pressure of the wheel that has been
removed for afew minutes. If this occurs,
note that the value displayed for the
position where the spare wheel is mounted
is not the same as the current tire pressure
of the emergency spare wheel.
Tire pressurem onitor warning
messages If the tire pressure monitor detects
apressure
loss in one or more tires, awarning message
is shown in the multifunction displaya nd the
yellow tire pressure monitor warning lamp
comes on.
R If the Correct Tire Pressure message
appears in the multifunction display, the
tire pressure in at least one tire is too low
and must be corrected at the next
opportunity.
R If the Check Tire Pressure message
appears in the multifunction display, the
tire pressure in one or more tires has
dropped significantly and the tires must be
checked.
R If the Tire Malfunction appears in the
multifunction display, the tire pressure in 344
CheckWheels and tires

one or more tires has dropped suddenly
and the tires must be checked.
Observe the instructions and safety notes in
the display messages in the "Tires" section
(Y page 258).
i If the wheel positions on the vehicle are
rotated, the tire pressures may be
displayed for the wrong positions for a
short time. This is rectified after afew
minutes of driving, and the tire pressures
are displayed for the correc tpositions.
Restarting the tire pressur emonitor When you restart the tire pressure monitor,
all existin gwarning messages are deleted and
the warning lamps go out. The monitor uses
the currently set tire pressures as the
reference values for monitoring. In most
cases, the tire pressure monitor will
automatically detect the new reference
values after you have changed the tire
pressure. However, you can also define
reference values manually as described here.
The tire pressure monitor then monitors the
new tire pressure values.
X Set the tire pressure to the value
recommended for the corresponding
driving situation on the Tire and Loading
Information placard on the B-pillar on the
driver's side (Y page 338).
Additional tire pressure values for different
loads can also be found on the tire pressure
table on the inside of the fuel filler flap
(Y page 338).
X Make sure that the tire pressure is correct
on all four wheels.
X Make sure that the SmartKey is in position
2 in the ignition lock.
X Press the 000Aor0004 button on the
steerin gwheel to select the Serv. menu.
X Press the 0006or0005 button to select
Tire Pressure .
X Press the 000Cbutton.
The multifunction display shows the
current tire pressure for each tire or the Tire pressures will be displayed after driving
afew minutes message.
X Press the 0005button.
The multifunction display shows the Use Current Pressures as New Reference
Values message.
If you wish to confirm the restart:
X Press the 000Cbutton.
The Tire Press. Monitor Restarted message appears in the multifunction
display.
After driving for
afew minutes, the system
checksw hether the current tire pressures
are within the specified range. The new tire
pressures are then accepted as reference
values and monitored.
If you wish to cancel the restart:
X Press the 0002button.
The tire pressure values stored at the last
restart will continue to be monitored. Loading the vehicle
Instruction labels for tires and loads
G
WARNING
Overloaded tires can overheat, causing a
blowout. Overloaded tires can also impair the
steering and driving characteristics and lead
to brake failure. There is arisk of accident.
Observe the load rating of the tires. The load
rating must be at least half of the GAWR of
your vehicle. Never overload the tires by
exceeding the maximum load.
Two instruction labels on your vehicle show
the maximum possible load.
(1) The Tire and Loading Information placard is on the B-pillar on the driver's side. The
Tire and Loading Information placard
shows the maximum permissible number
of occupant sand the maximum
permissible vehicle load. It also contains Loading the vehicle
345Wheels and tires Z

to the tire
sorchassiscomponents.
Components damage dinthisw ayma yfail
unexpectedly .There is arisk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced
immediately. Mounting
awheel
Preparing the vehicle X
Stop the vehicle on solid, non-slippery and
leve lground.
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" leve lisselecte d(Ypage 189).
X Switch off th eengine.
X Vehicles without KEYLESS-GO: remove
th eS martKey from th eignition lock.
X Vehicles with KEYLESS-GO: open the
driver' sdoor.
The on-board electronics no whave status
0.T his 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 147).
X If included in the vehicle equipment,
remove the tire-change tool kit from the
vehicle (Y page 320).
X Secure the vehicle to prevent it from rolling
away. Securing the vehicle to prevent it from
rolling away If your vehicle is equipped with
awheel chock,
it can be found in the tire-change tool kit
(Y page 320).
The folding wheel chock is an additional
safety measure to prevent the vehicle from
rolling away,f or example when changing a
wheel.
X Fold both plates upwards 001A.
X Fold out lower plate 0010.
X Guidet he lugs on the lower plate fully into
the openings in base plate 0024. Securing the vehicle on level ground
X
On level ground: place chocksorother
suitable items under the front and rear of
the wheel that is diagonallyo pposite the
wheel you wish to change. 358
Changing
awheelWheels and tires

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
Position jack 0024at jacking point 0010. Example
X
Make sure the foot of the jack is directly
beneath the jacking point.
X Turn crank 0021clockwise until jack 0024sits
completely on jacking point 0010and the
base of the jack lies evenly on the ground.
X Turn crank 0021until the tire is raised a
maximum of 1.2 in (3 cm) off the ground. Removing
awheel !
AMG vehicles: during removaland
repositioning of the wheel, the wheel rim
can strike the ceramic-brake disc and
damage it. Therefore, take precautions and
get asecond perso ntoassist you.
Alternatively, you can use asecond
alignment bolt.
! Do not place wheel bolts in sand or on a
dirty surface. The bolt and wheel hub
threads could otherwise be damaged when
you screw them in. X
Unscrew the uppermost wheel bolt
completely.
X Screw alignment bolt 001Ainto the thread
instead of the wheel bolt.
X Unscrew the remaining wheel bolts fully.
X Remove the wheel.
Mounting anew wheel G
WARNING
Oiled or greased wheel bolt sordamaged
wheel bolts/hub threads can cause th ewheel
bolt stoc omeloose .Asa result, you could
lose awheel while driving. There is arisk of
accident.
Never oil or grease wheel bolts. In the event
of damage to the threads, contact aqualified
specialist workshop immediately.H ave the
damage dwheel bolt sorhub threads
replaced/renewed. Do no tcontinue driving. 360
Changing
awheelWheels and tires

G
WARNING
If you tighten the whee lbolts or whee lnuts
when the vehicl eisraised, the jack coul dtip
over. There is arisk of injury.
Only tighten the whee lbolts or whee lnuts
when the vehicl eisonthe ground.
Always pay attention to the instructions and
safety notes in the "Changing awheel"
section (Y page357).
Only use whee lbolts that have been designed
for the whee land the vehicle. For safety
reasons, Mercedes-Benz recommends that
you only use whee lbolts which have been
approved for Mercedes-Benz vehicles and the
respective wheel.
! AMG vehicle with ceramic brake
discs: during remova land repositioning of
the wheel, the whee lrim can strike the
ceramic-brake disc and damage it.
Therefore, take precautions and have a
second perso nassist you. Alternatively,
you can use asecond alignment bolt.
! To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt. Positioning
awheel (example: vehicle with an
emergency spare wheel)
X Cleant he wheel and wheel hub contact
surfaces.
X Slide the wheel to be mounted onto the
alignment bolt and push it on.
X Tighten the wheel bolts until they are
finger-tight. X
Unscrew the alignment bolt.
X Tighten the last wheel bolt until it is finger-
tight.
X Vehicles with acollapsible spare
wheel: inflate th ecollapsible spare wheel
(Y page 368).
Only then lower th evehicle.
Lowering th evehicle G
WARNING
The wheels could work loose if th ewheel nuts
and bolt sare not tightene dtothe specified
tightening torque. There is arisk of accident.
Have the tightening torque immediately
checked at aqualified specialist workshop
after awheel is changed.
! Vehicles with acollapsible spare
wheel: before lowering th evehicle, inflate
th ec ollapsible spare wheel with th etire
inflatio ncompressor. The wheel rim could
otherwise be damaged. Tightenin
gthe wheel nuts (example: vehicle with
an emergenc yspare wheel)
X Turn the crank of the jack counter-
clockwise until the vehicle is once again
standin gfirmly on the ground.
X Place the jack to one side.
X Tighten the wheel bolts evenly in a
crosswise pattern in the sequence
indicated (001A to001E). The specified
tightening torque is 96 lb-ft(130 Nm).
X Turn the jack back to its initial position. Changing
awheel
361Wheels and tires Z

the syste
mmay still display th etire
pressure of th eremove dwheel for afew
minutes. The value displayed for the
mounte demergenc yspar ew heel is no tthe
same as the current tire pressure of the
emergency spare wheel. "Minispare" emergency sparew
heel/
collapsible sparew heel
Removing the "Minispare" emergency
sparew heel The emergency spare wheel can be found in
the stowage well under the trunk floor.
X Lift the trunk floor upwards (Y page 283).
X Turn stowage tray 0010counter-clockwise
and remove together with vehicle tool kit
tray 001A.
X Remove "Minispare" emergency spare
wheel 0024.
Removing the collapsible sparew heel
(AMG vehicles) The emergency spare wheel can be found in
the stowage wel
lunde rthe trunk floor.
X Lift the trunk floor upwards (Y page 283).
X Reach into cutout 001Ain the tool holder and
lift it up.
X Remove collapsibles pare wheel0010.
Always observe the instructions and safety
notes in the "Mounting awheel" section
(Y page 358). Stowing
aused 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 stow aused
collapsible spare wheel. It will not otherwise
install into the spare wheel well. Mercedes-
Benz recommends that you have this work
performed at aqualified specialist workshop,
e.g. at an authorized Mercedes-Benz Center.
X Unscrew the valve cap from the valve.
X Use the back of the valve cap to unscrew
the valve insert from the valve and release
the air.
i Fully deflating the tires can take afew
minutes.
X Screw the valve insert back into the valve.
X Screw the valve cap back on.
X Remove the protective sheet from the
vehicle tool kit and pull it over the
collapsible spare wheel.
X Stow the collapsible spare wheel in the
emergency spare wheel well under the
trunk. Inflating the collapsible spar
ewheel
! Inflate the collapsible spare wheel using
the tire inflation compressor before
lowering the vehicle. The wheel rim could
otherwise be damaged. 368
Emergency sparew
heelWheels and tires

!
Do not operate the tire inflation
compressor for longer than eight minutes
at at ime without abreak. It may otherwise
overheat.
The tire inflation compressor can be
operated againo nce it hascoole ddown. X
Mount the collapsibl espare whee las
described (Y page 357).
The collapsible spare wheel must be
mounted before it is inflated.
X Pull connector 0021and the air hose out of
the housing.
X Remove the cap from the valve on the
collapsible spare wheel.
X Screw union nut 001Aon the air hose ont othe
valve.
X Make sure on/off switch 001Eof the tire
inflation compressor is set to 0.
X Insert connector 0021intot he cigarette
lighter socket or int oa12Vsocket in your
vehicle.
Observe the notes on the cigarett elighter
(Y page 288). Observe the notes on
socket s(Ypage 289).
X Turn the SmartKey to position 1in the
ignition lock (Y page 147).
X Press on/offs witch001Eon th etirei nflation
compressor to I.
The tir einflatio ncompressor is switched
on. The tire is inflated. The tire pressure is
shown on pressure gauge 0024.
X Inflate the tire to the specified tire
pressure. The specified tire pressure is printed on the
yellow label of the emergenc
yspare wheel.
X When the specified tire pressure has been
reached, press on/offs witch001Eon the
electric air pump to 0.
The tir einflatio ncompressor is switched
off.
X Turn the SmartKey to position 0in the
ignition lock.
X If the tire pressure is higher than the
specified pressure, press pressure release
button 0010until the correc ttire pressure has
been reached.
X Unscrew union nut 001Aon the air hose from
the valve.
X Screw the valve cap ont othe collapsible
spare wheel valve again.
X Stow plug 0021and the air hose in the lower
section of the blower housing.
X Stow the tire inflation compressor in the
vehicle. Emergency sparew
heel
369Wheels and tires Z