2014 MERCEDES-BENZ CLS ignition

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

The tire pressure monitor hasayellow
warning lamp in the instrument cluster for
indicatingapressure loss or malfunction.
Whether the warning lamp flashes or lights up
indicates whetheratire pressure is too low or
the tire pressure monitor is malfunctioning:
Rif 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.
Rif 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 afterafew
minutes of driving.
The tire pressure values indicated by the on-
board computer may differ from those
measured atagas station withapressure
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 byapressure 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
XMake sure that the SmartKey is in position
2(Ypage 147) in the ignition lock .
XPress the\norbutton on the
steering wheel to select theServ.menu.
XPress theorbutton to select
Tire Pressure.
XPress thebutton.
The current tire pressure of each tire is
shown in the multifunction display.
If the vehicle was parked for longer than
20 minutes,theTirepressureswillbe
displayed after drivingafew
minutesmessage is shown.
Afterateach-in process, the tire pressure
monitor automatically detects new wheels or
new sensors. As long asaclear allocation of
the tire pressure value to the individual
wheels is not possible, theTire Pressure
Monitor Activedisplaymessage is shown
instead of the tire pressure display. The tire
pressures are already being monitored.
iIf an emergency spare wheel is mounted,
the system may continue to show the tire
pressure of the wheel that has been
removed forafew 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 pressuremonitor warning
messages
If the tire pressure monitor detectsapressure
loss in one or more tires,awarning message
is shown in the multifunction displayand the
yellow tire pressure monitor warning lamp
comes on.
RIf theCorrect Tire Pressuremessage
appears in the multifunction display, the
tire pressure in at least one tire is too low
and must be corrected at the next
opportunity.
RIf theCheck Tire Pressuremessage
appears in the multifunction display, the
tire pressure in one or more tires has
dropped significantly and the tires must be
checked.
RIf theTire Malfunctionappears in the
multifunction display, the tire pressure in
344Check
Wheels 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
(Ypage 258).
iIf 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 afterafew
minutes of driving, and the tire pressures
are displayed for the correctpositions.
Restarting the tire pressuremonitor
When you restart the tire pressure monitor,
all existingwarning 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.
XSet 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 (Ypage 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
(Ypage 338).
XMake sure that the tire pressure is correct
on all four wheels.
XMake sure that the SmartKey is in position
2in the ignition lock.
XPress the\norbutton on the
steeringwheel to select theServ.menu.
XPress theorbutton to select
Tire Pressure.
XPress thebutton.
The multifunction display shows the
current tire pressure for each tire or the
Tire pressures will be displayed
after drivingafew minutes
message.
XPress thebutton.
The multifunction display shows theUse
CurrentPressuresasNewReference
Valuesmessage.
If you wish to confirm the restart:
XPress thebutton.
TheTire Press. Monitor Restarted
message appears in the multifunction
display.
After driving forafew minutes, the system
checkswhether 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:
XPress thebutton.
The tire pressure values stored at the last
restart will continue to be monitored.
Loading the vehicle
Instruction labels for tires and loads
GWARNING
Overloaded tires can overheat, causing a
blowout. Overloaded tires can also impair the
steering and driving characteristics and lead
to brake failure. There isarisk 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 occupantsand the maximum
permissible vehicle load. It also contains
Loading the vehicle345
Wheels and tires
Z

to the tiresorchassiscomponents.
Components damagedinthiswaymayfail
unexpectedly.There isarisk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced
immediately.
Mountingawheel
Preparing the vehicle
XStop the vehicle on solid, non-slippery and
levelground.
XApply the parking brake.
XBring the front wheels into the straight-
ahead position.
XShift the transmission to positionP.
XVehicles with AIRMATIC:make sure that
"normal" levelisselected(Ypage 189).
XSwitch off theengine.
XVehicles without KEYLESS-GO:remove
theSmartKey from theignition lock.
XVehicles with KEYLESS-GO:open the
driver'sdoor.
The on-board electronics nowhave status
0.This is the same as the SmartKey having
been removed.
XVehicles with KEYLESS-GO:remove the
Start/Stop button from the ignition lock
(Ypage 147).
XIf included in the vehicle equipment,
remove the tire-change tool kit from the
vehicle (Ypage 320).
XSecure the vehicle to prevent it from rolling
away.
Securing the vehicle to prevent it from
rolling away
If your vehicle is equipped withawheel chock,
it can be found in the tire-change tool kit
(Ypage 320).
The folding wheel chock is an additional
safety measure to prevent the vehicle from
rolling away,for example when changing a
wheel.
XFold both plates upwards.
XFold out lower plate.
XGuidethe lugs on the lower plate fully into
the openings in base plate$.
Securing the vehicle on level ground
XOn level ground:place chocksorother
suitable items under the front and rear of
the wheel that is diagonallyopposite the
wheel you wish to change.
358Changingawheel
Wheels and tires

!Do not operate the tire inflation
compressor for longer than eight minutes
atatime withoutabreak. It may otherwise
overheat.
The tire inflation compressor can be
operated againonce it hascooleddown.
XMount the collapsiblespare wheelas
described (Ypage 357).
The collapsible spare wheel must be
mounted before it is inflated.
XPull connector!and the air hose out of
the housing.
XRemove the cap from the valve on the
collapsible spare wheel.
XScrew union nuton the air hose ontothe
valve.
XMake sure on/off switchof the tire
inflation compressor is set to0.
XInsert connector!intothe cigarette
lighter socket or intoa12Vsocket in your
vehicle.
Observe the notes on the cigarettelighter
(Ypage 288). Observe the notes on
sockets(Ypage 289).
XTurn the SmartKey to position1in the
ignition lock (Ypage 147).
XPress on/offswitchon thetireinflation
compressor toI.
The tireinflationcompressor is switched
on. The tire is inflated. The tire pressure is
shown on pressure gauge$.
XInflate the tire to the specified tire
pressure.
The specified tire pressure is printed on the
yellow label of the emergencyspare wheel.
XWhen the specified tire pressure has been
reached, press on/offswitchon the
electric air pump to0.
The tireinflationcompressor is switched
off.
XTurn the SmartKey to position0in the
ignition lock.
XIf the tire pressure is higher than the
specified pressure, press pressure release
buttonuntil the correcttire pressure has
been reached.
XUnscrew union nuton the air hose from
the valve.
XScrew the valve cap ontothe collapsible
spare wheel valve again.
XStow plug!and the air hose in the lower
section of the blower housing.
XStow the tire inflation compressor in the
vehicle.
Emergency sparewheel369
Wheels and tires
Z

Comply withall valid regulationswithrespect
to handling, storing,and disposingofservice
fluids.
Components and serviceproductsmust be
matched. You should thereforeonly use
products thathave been tested and approved
by Mercedes-Benz.
Information on tested and approved products
can be obtainedatanauthorized Mercedes-
BenzCenterorontheInternet at
http://bevo.mercedes-benz.com.
You can recognize service products approved
by Mercedes-Benzbythefollowing
inscription on thecontainers:
RMB-Freigabe (e.g. MB-Freigabe 229.51)
RMB Approval (e.g. MB Approval 229.51)
Other designationsorrecommendations
indicatealevel of qualityoraspecification in
accordance withanMBSheet number (e.g.
MB 229.5). Theyhave notnecessarily been
approved by Mercedes-Benz.
Fuel
Important safetynotes
GWARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there isarisk of fire and
explosion.
You must avoid fire, open flames, creating
sparks and smoking. Switchoff the engine
and, if applicable, the auxiliary heating before
refueling.
GWARNING
Fuel is poisonous and hazardous to health.
There isarisk of injury.
You must make sure that fuel does not come
into contact with your skin,eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel away from children.
If you or otherscome into contact with fuel,
observe the following:
RWash away fuel from skin immediately
using soap and water.
RIf fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance
without delay.
RIf fuel is swallowed, seek medical
assistancewithout delay. Do not induce
vomiting.
RImmediately change out of clothing which
has come into contact with fuel.
Tank capacity
ModelTotal
capacity
All models21.1USgal
(80.0l)
ModelOf which
reserve
All models (except for
AMG vehicles)
Approx.
2.4 US qt
(9.0 l)
All models (AMG vehicles)Approx.
3.7 US gal
(14.0l)
Gasoline
Fuel grade
!Do not use diesel to refuel vehicles with a
gasoline engine. Do not switch on the
ignition if you accidentally refuel with the
wrong fuel. Otherwise, the fuel will enter
the fuel system. Even small amounts of the
wrong fuel could result in damage to the
fuel system and the engine. Notifya
qualified specialist workshopand have the
fuel tank and fuel lines drained completely.
374Service products and filling capacities
Technical data