2018 MERCEDES-BENZ CLA COUPE brake

Make sure that:
RThe jumper cables are not damaged.
RNon-insulated parts of the terminal clamps do not come into contact with other metal parts while
the jumper cables are connected to the battery.
RThe jumper cables cannot come into contact with parts that can move when the engine is running,
such as the V-belt pulleyorthe fan.
XSecure the vehicle by applying the electric parking brake.
XShift the transmission to position j.
XTurn the SmartKey to positiongin the ignition lock and remove it.
XSwitch off all electrical consumers, e.g. rear window defroster, lighting, etc.
XOpen the hood.
Position number Bidentifies the charged battery of the other vehicle or an equivalent jump-starting
device.
XPress together cover :of positive clamp ;and slide it back.
XConnect positive terminal ;on your vehicle to positive terminal =of donor battery Busing the
jumper cable, beginning with your own battery.
XStart the engine of the donor vehicle and run it at idling speed.
XConnect negative terminal ?of donor battery Bto ground point Aof your vehicle using the
jumper cable, connecting the jumper cable to battery of other vehicle Bfirst.
XIf the battery is fully discharged, leave the battery that is being used to jump-start connected for
afew minutes before attempting to start. This charges the battery slightly.
XStart the engine.
XBefore disconnecting the jumper cables, let the engine run for several minutes.
XFirst, remove the jumper cables from ground point Aand negative terminal ?,then from pos-
itive terminal ;and positive terminal =.Begin each time at the contacts on your own vehicle
first.
XClose cover :of positive terminal ;after removing the jumper cables.
XClose the hood.
XHave the battery checked at aqualified specialist workshop.
iJump-starting is not considered to be anormal operating condition.
280Jump-starting
Breakdown assistance

iJumper cablesand further informatio nregardingj ump-startin gcan be obtaine datany qualified
specialist workshop.
Towing and tow-starting
Important safety notes
GWARNING
Functionsr elevanttos afety are restricted or
no longer available if:
Rth ee ngine is no trunning.
Rtheb rakes ystem or th epower steering is
malfunctioning.
Rthere is amalfunctio ninthevoltage supply
or th evehicle's electrical system.
If your vehicle is beingt owed, muchm ore
force may be necessaryt osteer or brake.
Thereisar isk of an accident.
In such cases, use atow bar. Before towing,
makes ure that th esteering moves freely.
GWARNING
You can no longer steer th evehicle if the
steering wheel lockh as been engaged. There
is ar isk of an accident.
Always switch off th eignitio nwhen towing the
vehicle with atow cable or atow bar.
GWARNING
When towing or tow-startin ganother vehicle
and its weight is greater than th epermissible
gross weight of your vehicle ,the :
Rthet ow ing eye could detach itself
Rthev ehicle/trailer combinatio ncould roll-
over.
Thereisar isk of an accident.
When towing or tow-startin ganother vehicle,
its weight shouldn otbe greater than th eper-
missible gross weight of your vehicle.
Details on th epermissible gross vehicle weight
of your vehicle can be foun donthevehicle iden-
tification plate(
Ypage 314).
!When Activ eBrake Assist,D istance Pilot
DISTRONIC or th eHOLDfunction is activated, th
ev ehicle brakes automatically in certain
situations.
To avoid damage to th evehicle ,deactivate
these systems in th efollowing or similar sit-
uations:
Rwhen towing th evehicle
Rin th ecar wash
!Makes ure that th eelectric parking brak eis
released. If th eelectric parking brakeisf aulty,
visitaq ualifiedspecialist workshop.
!Only secure th etow rope or to wbar at the
towing eyes. Otherwise, th evehicle coul dbe
damaged.
!Do no tuse th etow ing eyes for recoveryp ur-
posesast hisc oul dd amage th evehicle .Ifin
doubt,r ecover th evehicle with acrane.
!When towing ,pull away slowly and
smoothly. If th etractive power is to ohigh,t he
vehicle scoul dbed amaged.
!The vehicle can be towed amaximum of
30 miles (50km ). The towing speed of 30 mph
(50km/h) must no tbeexceeded.
If th evehicle has to be towed moret han
30 miles (50km), th efront axle must be raised
or th eentire vehicle raiseda nd transported.
!Do nottow with sling-type equipment .This
coul ddamage th evehicle.
!When towing vehicle swith KEYLESS-GO,
use th ekey instead of th eStart/Sto pbutton.
Otherwise, th eautomatic transmission may
shifttop ositionPwhen th edriver' sorf ront-
passenger door are opened, whichc ouldlead
to damage to th etransmission.
!Vehicles with automatic transmission must
no tbes tarted by tow-starting. This coul doth-
erwis edamage th etransmission.
It is bette rtohave th evehicle transported than
to have it towed away.
If th evehicle can no longer be driven because of
an accidentorb reakdown,you have thefollow-
ing options:
RTransportin gthe vehicle.
Towing and tow-starting281
Breakdown assistance
Z

Asarule, yous houl dhavet he vehicl etrans-
ported.
RTowing the vehicl ewithat ow ropeort ow bar.
Onlyt ow the vehicl einexceptionalc ases.
The battery must be connected and charged.
Otherwise, you:
Rcanno tturn the SmartKeytop osition2in
the ignition lock.
Rcanno trelease the electri cparking brake.
Rcanno tshift the transmission to position i.
The functio nofthe electri cparking brake and
the parking lock is dependent on the on-board
voltage.
If the on-board voltag eislowor if ther eisasys-
tem malfunction:
Rthe electri cparking brake mayn ot be applied
in certain circumstances ,or
Rit maynol ongerbep ossibl etos hift the trans-
mission to position j
Switch off non-essentia lconsumers, e.g .the
radio.
Disar mthe automatic locking feature before the
vehicl eistowed (
Ypage 187). Yo ucould other-
wise be locked outw henp ushing or towing the
vehicle.
Installing/removin gthe towin geye
Installing the towin geye
The brackets for the screw-i ntowing ey eare
locate dinthe bumpers. The yareat the rea rand
at the front, under covers :.
XRemove the towing eyefrom the stowage
space.
The towing ey eislocate dw itht he vehicl etool
kit under the cargo compartment floor
(
Ypage 270).
Vehicles with the TIREFIT kit: the towing ey eis
beneath the tire inflation compressor
(
Ypage 271).
XPress the mark on cover :inwards in the
direction of the arrow.
XTake cover :off the opening.
XScrew in the towing ey eclockwise to the stop.
Removing the towin geye
XUnscrew and remove the towing eye.
XAttach cover :to the bumpe rand press until
it engages.
XPlace the towing ey einthe stowag ewell
beneath the cargo compartment floor in the
cargo compartment (
Ypage 270).
XVehicles with the TIREFIT kit: pu tbackt he tire
inflation compressor (Ypage 271).
Towin gthe vehicle with the fron taxle
raised
Observ ethe important safety notes when tow-
ing your vehicl ewitht he front axl eraised
(
Ypage 281).
Only vehicle swithou t4MATIC can be towed
with the fron taxler aised.
!Vehicles with 4MATIC must not be towed
with either the front or the rea raxler aised, as
doing so will damage the transmission.
Vehicles with 4MATIC maye ither be towed away
with both axles on the ground or be loaded up
and transported.
!The ignition must be switched off if the vehi-
cle is being towed with the front axl eraised.
Otherwise, ESP
®mayi ntervene and damage
the brake system.
XOn vehicle swithK EYLESS -GO or the KEY-
LESS-GO start function: youm ustu se the
SmartKeyi nsteadofthe Start/Stop button
(
Ypage 123).
XMake sure thatt he vehicleisstationary.
XTurn the SmartKeytop osition 2in the igni-
tio nlock.
282Towin gand tow-starting
Breakdo wn assis tance

XWhen the vehicle is stationary, depress the
brake pedal and keep it depressed.
XShift the automatic transmission to position
j.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitchoff the automatic locking
(Ypage 187).
XSwitc hont he hazard warning lamps
(Ypage 102).
XTurn the SmartKey in the ignition lock to posi-
tion gand leave the SmartKey in the ignition
lock.
Towing avehicle with both axles on
the ground
It is importan tthat you observe the safety
instruction swhen towing away your vehicle
(
Ypage 281).
XOn vehicles with KEYLESS-GO or the KEY-
LESS-GO star tfunction: you must use the
SmartKey instead of the Start/Stop button
(
Ypage 123).
The automatic transmission automatically shifts
to position jwhen you open the driver's or
front-passenger door or when you remove the
SmartKey from the ignition lock. In order to
ensure that the automatic transmission stays in
position iwhen towing away the vehicle, you
must observe the following points:
XMake sure that the vehicle is stationary.
XTurn the SmartKey to position 2in the igni-
tion lock.
XDepress and hold the brake pedal.
XShift the automatic transmission to position
i.
XLeave the SmartKey in position 2in the igni-
tion lock.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitc hont he hazard warning lamps
(Ypage 102).
iIn order to signal achange of direction when
towing the vehicle with the hazard warning
lamps switched on, use the combination
switch as usual. In this case, only the indicator
lamps for the direction of travel flash. After resetting the combination switch, the hazard
warning lamp start
sflashing again.
Transporting the vehicle
4MATIC vehicles or vehicles with auto-
matic transmission
!When the vehicle is loaded for transport, the
fronta nd rear axles must be stationary and on
the same transportation vehicle. Positioning
over the connection point of the transport
vehicle is not permitted. The drive train may
otherwise be damaged.
All vehicles
!You may only secure the vehicle by the
wheels, not by parts of the vehicle such as
axle or steerin gcomponents. Otherwise, the
vehicle could be damaged.
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 122).
XShift the transmission to position i.
As soon as the vehicle has been loaded:
XPreventt he vehicle from rolling away by
applying the electric parking brake.
XShift the transmission to position j.
XTurn the SmartKey to positiongin the igni-
tion lock and remove it.
XSecure the vehicle.
The towing eye can be used to pull the vehicle
ont oat railer or transporter for transportin gpur-
poses.
Towing and tow-starting283
Breakdown assistance
Z

Important safety notes
GWARNING
If wheels and tires of th ewrong siz eare used,
th ew hee lbrakes or suspension component s
may be damaged. Ther eisariskofana cci-
dent.
Always replace wheels and tires wit hthose
that fulfill th especification softheoriginal
part .
When replacing wheels, mak esuretou se the
correct:
Rdesignation
Rmodel
When replacing tires ,makes uretou se the
correct:
Rdesignation
Rmanufacturer
Rmodel
GWARNIN G
Af lat tire severely impairs th edriving ,steer -
ing and braking characteristics of th evehicle.
Ther eisar iskofa ccident.
Tires without run-flat characteristics :
Rdo notdrivew ithaf lat tire.
Rimmediately replace th eflat tire wit hyour
emergenc yspar ew hee lors parew heel, or
consult aqualified specialist workshop.
Tires wit hrun-flat characteristics :
Rpay attention to theinformation and warn -
ing notice sonMOExtended tires (tire swith
run-flat characteristics).
Accessories that are no tapprove dfor your vehi-
cle by Mercedes-Ben zorare notbein gused cor-
rectl ycan impair th eoperating safety.
Before purchasing and usin gnon-ap proved
accessories, visit aqualified specialist work-
sho pand inquire about :
Rsuitability
Rlegal stipulation s
Rfactory recommendation sFurther information regarding wheels and tires
can be foun
dunder "Wheel/tire combinations"
(
Ypage 312).
You can ask for information regarding permitte d
wheel/tire combination satanauthorized
Mercedes-Ben zCenter.
Information on tire pressur ecan be found:
Ron th eTirea nd Loading Information placard
on th eB-pillar on th edriver' sside
(
Ypage 298)
Rin th etirep ressur etable in th efuel filler flap
(Ypage 139)
Runder "Tir epressure" (Ypage 290)
Operation
Information on driving
Checkthe tire pressur ewhen th evehicl eis
heavily laden and adjust prio rtoatrip.
While driving ,pay attention to vibrations, noises
and unusual handlin gcharacteristics ,e.g.p ull-
ing to on eside .This may indicat ethatthe
wheels or tires are damaged. If you suspec ttha t
at ireisd efective, reduce your spee dimmedi-
ately. Stop th evehicl eass oonasp ossible to
chec kthe wheels and tires for damage. Hidden
tire damag ecould also be causing th eunusual
handlin gcharacteristics .Ifyou fin dnos ignsof
damage, hav ethe tires and wheels checke data
qualified specialist workshop.
When parking your vehicle, mak esuret hatthe
tires do no tget deformed by th ecurboro ther
obstacles. If they canno tbeavoided, driv eover
obstacles suc hascurbs slowly and at an obtuse
angle. Otherwise, you may damag ethe wheels
or tires .
Regula rchecking of wheels and tires
GWARNIN G
Damaged tires can caus etirei nflation pres-
sur eloss .Asar esult,you could lose control of
your vehicle. Ther eisariskofa ccident.
Chec kthe tires regularly for sign sofdamage
and replace any damaged tires immediately.
Operation287
Wheels and tires
Z

CountryRadio type approval number
ne doit pas produire de brouil-
lage, et (2) L'autisatuer de l'ap-
pareil doit accepter tout brouil-
lage radioelectrique subi, meme
si le brouillage est susceptible
d'en compromettre le fonc-
tionnement. WARNING: Changes
or modifications not expressively
approved by thepartyr esponsi-
ble for compliance could void the
users authorityt ooperate the
equipment .The ter m"IC:"b efore
th er adio certification number
onl ysignifies Canada technical
specifications were met.
CanadaIC: 2546A-MW2433A
IC:2546A-GG4 This devic ecom-
plies with part 15 of th eFCC
rules and with licens eexempt
RSS standards of Industry Can-
ada. Operatio nissubject to the
following conditions. (1) This
devic emay not cause harmful
interference, and (2) This device
must accept any interference
received ,includingi nterference
that may cause undesiredo per-
ation. Le present appareil est
conforme d'industrie Canada
applicables aux appereils radio
exemptsdel icense. L'exploita-
tio ne st authorisee aux deux con-
ditionss uivantes.(1). L'appareil
ne doit pas produire de brouil-
lage, et (2) L'autisatuer de l'ap-
pareil doit accepter tout brouil-
lage radioelectrique subi, meme
si le brouillage est susceptible
d'en compromettre le fonc-
tionnement. WARNING: Changes
or modifications not expressively
approved by th epartyr esponsi-
ble for compliance could void the
users authorityt ooperate the
equipment .The ter m"IC:"b efore
th er adio certification number
onl ysignifies Canada technical
specifications were met.
IC: 2546A-MC34MA4
Loading th evehicle
Instruction labels for tires and loads
GWARNING
Overloadedt ires can overheat,c ausing a
blowout.O verloadedt ires can also impair the
steeringa nd driving characteristic sand lead
to brakef ailure. Thereisar isk of accident.
Observe th eload rating of th etires. The load
rating must be at least half of th eGAWR of
your vehicle .Never overload th etires by
exceedingt hemaximum load.
Two instruction labels on your vehicle show the maximum possible load.
(1) The Tire and LoadingI nformation placar dis
on th eB-pillar on th edriver' sside. The Tire
and LoadingI nformation placar dshows the
maximum permissible number of occu-
pant sand th emaximum permissible vehicle
load. It also contain sdetails of th etires izes
and corresponding pressures for tires
mounted at th efactory.
(2) The vehicle identification plateisont heB-
pillar on th edriver' sside. The vehicle iden-
tification platei nformsyou of thegross
vehicle weight rating .Itismade up of the
vehicle weight,a ll vehicle occupants, the
fuel and th ecargo. You can also fin dinfor-
mation about th emaximum gross axle
weight rating on th efront and rear axle.
The maximum gross axle weight rating is
th em aximum weight that can be carried by
one axle (front or rear axle) .Never exceed
th em aximum load or th emaximum gross
axle weight rating for th efront or rear axle.
:B-pillar ,driver' sside
298Loading th evehicle
Wheels and tires

PSI (pounds per squareinch)
Astandard unit of measure for tire pressure.
Aspect ratio
Relationship between tire height and tire width
in percent.
Tire pressure
This is pressure inside the tire applying an out-
ward force to each square inch of the tire's sur-
face. The tire pressure is specified in pounds per
square inch (psi), in kilopascal (kPa) or in bar.
The tire pressure should only be corrected when
the tires are cold.
Cold tire pressure
The tires are cold:
Rif the vehicle has been parked with the tires
out of direct sunlight for at least three hours
and
Rif the vehicle has not been driven further than
1m ile (1.6 km)
Tread
The part of the tire that comes into contact with
the road.
Bead
The tire bead ensures that the tire sits securely
on the wheel. There are several steel wires in the
bead to prevent the tire from coming loose from
the wheel rim.
Sidewall
The part of the tire between the tread and the
bead.
Weight of optional extras
The combined weight of those optional extras
that weigh more than the replaced standard
parts and more than 2.3 kg (5 lbs). These
optional extras, such as high-performance
brakes, level control, aroof rack or ahigh-per-
formanceb attery, are not included in the curb
weight and the weight of the accessories.
TIN (Tire Identification Number)
This is aunique identifier which can be used by
at ire manufacturer to identify tires, for example
for aproduct recall, and thus identify the pur-
chasers. The TIN is made up of the manufactur-
er's identity code, tire size, tire type code and
the manufacturing date.
Load bearing index
The load bearing index (also load index) is acode
that contains the maximum load bearing capa-
city of atire.
Traction
Traction is the result of friction between the tires
and the road surface.
Treadwear indicators
Narrow bars (tread wear bars) that are distrib-
uted over the tire tread. If the tire tread is level
with the bars, the wear limit of áin (1.6 mm)
has been reached.
Occupant distribution
The distribution of occupants in avehicle at their
designated seating positions.
Total load limit
Nominal load and luggage load plus 68 kg
(15 0lbs)m ultiplied by the number of seats in
the vehicle.
Changing awheel
Flat tire
The "Breakdown assistance" section
(Ypage 271) contains information and notes on
how to deal with aflat tire. Information on driv-
ing with MOExtended tires in the event of aflat
tire can be found under "MOExtended tires (tires
with run-flat characteristics" (
Ypage 271).
Rotating the wheels
GWARNING
Interchanging the 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 acci-
dent.
Rotate front and rear wheels only if the wheels and tires are of the same dimensions.
!On vehicles equippedw ithatire pressure
monitor ,electronic components are located
in the wheel.
Changing awheel307
Wheels and tires
Z

Tire-mounting tools should not be used near
the valve. This could damage the electronic
components.
Only have tires changed ataqualified spe-
cialist workshop.
Observe the instructions and safety notes in the
"Changing awheel" section (
Ypage 307).
The wear pattern sonthe front and rear tires
differ, depending on the operating conditions.
Rotate the wheels before aclear wear pattern
has formed on the tires. Frontt ires typically
wear more on the shoulders and the rear tires in
the center.
On vehicles that have the same size front and
rear wheels, you can rotat ethe wheels accord-
ing to the intervals in the tire manufacturer's
warranty book in your vehicle documents. If no
warranty book is available, the tires should be
rotated every 3,000 to 6,000 miles (5,000 to
10,000k m).D ependin gontire wear, this may
be required earlier. Do not change the direction
of wheel rotation.
Clean the contact surfaces of the wheel and the brake disc thoroughly every time awheel is rota-
ted. Check the tire pressure and, if necessary,
restart the tire pressure loss warning system
(Canada only) or the tire pressure monitor (USA
only).
Direction of rotation
Tires with aspecified direction of rotation have
additional benefits ,e.g. if there is arisk of hydro-
planing. These advantages can only be gained if
the tires are installed corresponding to the
direction of rotation.
An arrow on the sidewall of the tire indicates its
correctd irection of rotation.
Storing wheels
Storewheels that are not being used in acool,
dry and preferably dark place. Protectt he tires
from oil, grease, gasoline and diesel.
Mounting awheel
Preparing the vehicle
XStop the vehicle on solid, non-slippery and
level ground.
XApply the electric parking brake manually.
XBring the front wheels into the straight-ahead position.
XShift the transmission to position j.
XSwitch off the engine.
XVehicles without KEYLESS-GO:remove the
SmartKey from the ignition lock.
XVehicles with KEYLESS-GO start-function
or KEYLESS-GO: open the driver's door.
The vehicle electronics are now in position
u.T his is the same as “key removed”.
XVehicles with KEYLESS-GO start-function
or KEYLESS-GO: remove the Start/Stop but-
ton from the ignition lock (
Ypage 122).
XMake sure that the engine cannot be started
via your smartphon e(Ypage 83).
XIf included in the vehicle equipment, remove
the tire-change tool kit from the vehicle.
XSafeguard the vehicle against rolling away
(Ypage 141).
iApart from certain country-specific varia-
tions, the vehicles are not equipped with a
tire-change tool kit. Some tools for changing a
wheel are specific to the vehicle. For more
information on which tools are required to
perform awheel change on your vehicle, con-
sult aqualified specialist workshop.
Necessary tire-changing tools can include, for
example:
RJack
RWheel chock
RLug wrench
308Changing awheel
Wheels and tires