check engine MERCEDES-BENZ SLC-Class 2017 R172 User Guide
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2017, Model line: SLC-Class, Model: MERCEDES-BENZ SLC-Class 2017 R172Pages: 294, PDF Size: 7.28 MB
Page 57 of 294
good time, and for staying in lane. Always adapt
your driving style to suit the prevailing road and
weather conditions and maintainasafe distance
from the vehicle in front.D rive carefully.
The driving safety systems described only work
as effectively as possible when there is ade-
quate contact between the tires and the road
surface. Pay particular attention to the informa-
tion regarding tires, recommended minimum
tire tread depths etc. in the "Wheels and tires"
section (
Ypage 255).
In wintry driving conditions, always use winter
tires (M+S tires) and if necessary, snow chains.
Only in this way will the driving safety systems
described in this section work as effectively as
possible.
ABS (Anti-lock Braking System)
General information
ABS regulates brake pressure in such away that
the wheels do not lock when you brake. This
allows you to continue steering the vehicle when
braking.
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
ABS works from aspeed of about 5mph
(8 km/h), regardless of road-surface conditions.
ABS works on slippery surfaces, even when you
only brake gently.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 54).
GWARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally,f urther driving safety systems are deac-
tivated. There is an increased danger of skid-
ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at aqualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (
Ypage 204) and dis- play messages which may be shown in the
instrument cluster (
Ypage 179).
Braking
XIf ABS intervenes:
continue to depress the
brake pedal vigorously until the braking sit-
uation is over.
XTo make afull brake application: depress
the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indication
of hazardous road conditions, and functions as a reminder to take extr acare while driving.
BAS (Brake Assist System)
General information
BAS operates in emergencyb raking situations.
If you depress the brake pedal quickly, BAS
automatically boosts the braking force, thus
shortening the stopping distance.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 54).
GWARNING
If BAS is malfunctioning, the braking distance
in an emergencyb raking situation is
increased. There is arisk of an accident.
In an emergencyb raking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
Braking
XKeep the brake pedal firmly depressed until
the emergencyb raking situation is over.
ABS prevent sthe wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
Driving safety systems55
Safety
Z
Page 60 of 294
Important safety notes
GWARNING
Adaptive Brake Assist canno talways clearly
iden tifyo bject sand co mplextraffic situa-
tions.
In suchc ases, Adaptive Brake Assist can:
Rinterveneu nnecessarily
Rnotintervene
Thereisar iskofana cciden t.
Always pay careful attentio ntothetraff icsit-
uation and beread ytob rake. Terminate the
interventio ninanon-criticaldriving situation.
GWAR NING
Adaptive Brake Assist does no treact:
Rto people or animals
Rto oncomin gvehicle s
Rto crossing traff ic
Rwhen cornering
As aresult, th eAdaptive Brake Assist may not
interveneina llcritical conditions. Thereisa
ris kofana cciden t.
Always pay careful attentio ntothetraff icsit-
uation and beread ytob rake.
Due to th enature of th esystem, particularly
co mpli cated but non-critical driving conditions
may also caus eBrake Assist to intervene.
If adaptive Brake Assist isno tavailab ledue to a
malfunctio nintheradar sensor system, the
brak esystem remains availab le withfull brake
boostin geffect and BA S.
ESP®(Electronic Stability Program)
General notes
iObserv ethe "Im portan tsafety notes" sec-
tio n(Ypage 54).
ESP
®monitors driving stabilit yand traction,i .e.
power transmission between th etires and the
road surface.
If ESP
®detect stha tthe veh icle is deviating from
th ed irection desired bythed river, oneorm ore
wheelsa re braked to stabiliz ethe veh icle.The
engineo utputisalso mod ifiedtok eept he veh i- cle on th
edesired course within physical limits.
ESP
®assists th edriver when pullingaway on
wet or slippery roads. ESP®can also stabilize
th ev ehicle durin gbraking.
ETS (Electronic Traction System)
iObserv ethe "Importan tsafety notes" sec-
tio n(Ypage 54).
ET St raction control is part of ESP
®.
ET Sb rakes th edrivew heelsi ndivid ually if they
spin.T his enables you to pull away and acceler-
ate on slippery surfaces, for example if th eroad
surface is slippery on ones ide.Inaddition,m ore
drivet orque istransferred to th ewheel or
wheelsw itht raction.
ET Sr emains active when you deactivate ESP
®.
Important safety notes
GWARNING
If ESP
®is malfunctioning, ESP®is unab leto
stabilizet hevehicle .Add itionally, further driv-
ing safety systems are deactivate d.This
increases th eriskofs kiddin gand an accident.
Drive on carefully. Hav eESP
®checked at a
qualified specialist workshop.
When to wingthe vehicle witht herear axle
raised, observ ethe note sonE SP
®
(Ypage 252).
If the å ESP®OFFw arning lamp lightsu p
continuously, then ESP®is deactivate d.
If the ÷ ESP®warning lamp and the å
ESP®OFFw arning lamp are lit continuously,
ESP®is no ta vailab ledue to amalfunction.
Observ ethe information on warning lamps
(
Ypage 205) and display messagesw hichmay
be shown in thei nstrumen tcluster
(
Ypage 179).
iOnly use wheelsw itht he recommended tire
sizes. Only then willESP®function properly.
Characteristics of ESP®
General information
Ifthe ÷ ESP®warning lamp goes out before
beginnin gthe journey, ESP®is automatically
active.
58Driving safety systems
Safety
Page 63 of 294
REngine torque is no longerlim ite da nd the
drive wheels ar eabletos pin.
RESP®still provides support when yo ubrake
firmly.
Characteristics when ESP®is deactivated
If ESP®is deactivated and one or mor ewheel s
start to spin, the ÷ESP®warning lamp in the
instrument cluster flashes. In such situations,
ESP
®will not stabilize the vehicle.
If yo udeactivate ESP®:
RESP®no longe rimproves drivin gstability.
REngine torque is no longe rlim ite da nd the
drive wheels ar eabletos pin.
RTractio ncontro lisstill activated.
RActiv eBrake Assist is not availabl eand is not
activated eve nifyoubrake firmly with assis-
tance fromE SP
®
RPRE-SAFE®is no longeravailable, nor is it
activated if yo ubrake firmly and ESP®inter-
venes.
RESP®still provides support when yo ubrake
firmly.
EBD (electroni cbrak eforce distribu-
tion)
General information
EBD monitors and controls the brake pressure
on the rea rwheel stoi mprov edrivin gstability
whil ebraking.
Important safety notes
iObserve the "Important safety notes" sec-
tio nfor drivin gsafety system s(Ypage 54).
GWARNING
If EBD is malfunctioning ,the rea rwheel scan
lock, e.g .under full braking .Thisi ncreases the
ris kofs kidding and an accident.
Yo us houl dtherefore adap tyou rd rivin gstyle
to the different handling characteristics. Have
the brake system checked at aquali fied spe-
cialist workshop.
Observe informatio nregarding indicator and
warning lamps (
Ypage 204 )aswellasd isplay
message s(Ypage 181).
ADAPTIVE BRAKE
i
Observe the "Important safety notes" sec-
tio n(Ypage 54).
ADAPTIVE BRAKE enhance sbraking safety and
offers increased braking comfort. In additio nto
the braking function, ADAPTIVE BRAKE also has
the HOLD functio n(
Ypage 148) and hill start
assist (Ypage 117).
Protectio nagainst theft
Immobilizer
XTo activate with the SmartKey: remove the
SmartKeyf romthe ignition lock.
XTo activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
XTo deactivate: switch on the ignition.
The immobilize rprevents your vehicl efrom
being started withou tthe correct SmartKey.
When leaving the vehicle, always take the
SmartKeyw ithy ou and lock the vehicle. The
engine can be started by anyone with avalid
SmartKeyt hatislefti nsid ethe vehicle.
iThe immobilize risalwaysdeactivated when
yo us tart the engine.
In the event thatt he engine cannotbes tarted
(yet the vehicle's battery is charged) ,the sys-
tem is not operational .Contact an authorized
Mercedes-Benz Center or call
1-800-FOR-MERCede s(in the USA) or
1-800-387-0100 (i nCanada).
ATA (anti-theft alarm system)
Protectiona gainsttheft61
Safety
Z
Page 66 of 294
Locking/unlockingcentrally
You can start,lockorunlock thevehicle using
KEYLESS-GO .Todothis, you onl yneedc arry the
SmartKey with you. You can combine th efunc-
tions of KEYLESS-GO with those of aconven-
tional SmartKey. Unlockt hevehicle by using
KEYLESS-GO ,for instance, and lockitu singthe
& button on th eSmartKey.
The driver' sdoor and th edoor at whicht hehan-
dle is used, must bothbec losed. The SmartKey
must be outside th evehicle .When locking or
unlocking with KEYLESS-GO ,the distance
between th ekey and th ecorresponding door
handle must not be greater than 3ft(1m).
Ac heck whichp eriodicallyestablishesar adio
connectio nbetween th evehicle and th eSmart-
Key determine swhether avalid SmartKey is in
th ev ehicle .This occurs, for example:
Rwhen starting th eengine
Rwhile driving
Rwhen th eexternal door handles are touched
XTo unlock th evehicle: touch th einner sur-
fac eoft hedoor handle.
XTo lock th evehicle: touch sensor surface :
or ;.
Makes ure that you do not touch th einner
surface of th edoor handle.
XConvenience closing feature: touch
recesseds ensor surface ;for an extended
period.
Further informatio nontheconvenience clos-
ing feature (
Ypage 74).
Deactivating and activating
If you do not intend to use aSmartKey for an
extended perio doftime, you can deactivate the
KEYLESS-GO function of th ekey. The SmartKey
will then use veryl ittle power,therebyc onserv- ing battery power.F
or thepurposes of activa-
tion/deactivation, th evehicle must not be
nearby.
XTo deactivate: pressthe& button on the
SmartKey twic einrapid succession.
The battery check lamp (
Ypage 66 )ofthe
SmartKey flashes twic ebriefly and lightsu p
once, then KEYLESS-GO is deactivated.
XTo activate: pressany button on th eSmart-
Key.
or
XInsertt heSmartKey int othe ignitio nlock.
KEYLESS-GO and all of its associate dfeatures
are available again.
Changing th esettings of th elocking
system
You can change th esettings of th elockin gsys-
tem .This meanso nlyt he driver' sdoor,t helock-
able stowage compartments in th evehicle inte-
rior and th efuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you fre-
quently travel alone.
XTo change th esetting: pressand hold down
the % and& buttons simultaneously
for about six second suntil th ebattery indica-
to rlamp (
Ypage 66 )flashes twice.
If th esettin goft helockin gsystem is changed
within th esignal range of th evehicle ,pressing
the & or% button:
Rlocks or
Runlock sthe vehicle
The SmartKey now functionsasf ollows:
XTo unlock:pressthe % button once.
XTo unlock centrally: pressthe % button
twice.
XTo lock centrally: pressthe& button.
The KEYLESS-GO function is changed as fol-
lows:
XTo unlock th edriver's door: touch theinner
surface of th edoor handle on th edriver's
door.
XTo unlock centrally: touch theinner surface
of th edriver or front-passenger door handle.
XTo lock centrally: touch theouter sensor
surface on one of th edoor handles.
64SmartKey
Opening and closing
Page 70 of 294
ProblemPossible causes/consequences andMSolutions
The engine cannot be
started using the Smart-
Key.The on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary (Ypage 248).
or
XJump-start the vehicle (Ypage 249).
or
XConsult aqualified specialist workshop.
The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle.The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 66) and replace it if necessary
(Ypage 66).
If this does not work:
XStart your vehicle with the SmartKey in the ignition lock.
There is interference from apowerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
You have lost aSmart-
Key.XHave the SmartKey deactivated at aqualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
Doors
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is arisk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
68Doors
Opening and closing
Page 84 of 294
Correct driver's seat position
GWARNING
You coul dlose control of your vehicle if you do
th ef ollowingw hile driving:
Radjust thedriver'ss eat,head restraint,
steering wheel or mirrors
Rfasten th eseat belt
Thereisar iskofana ccident.
Adjust th edriver'ss eat,head restraint ,steer-
ing wheel and mirror and fasten your seat belt before starting th eengine.
XObserv ethe safety guideline sonseat adjust-
men t(Ypage 82).
XMakes ure that seat =is adjusted properly.
Manual seat adjustmen t(
Ypage 84)
Electrical seat adjustmen t(
Ypage 84)
When adjusting th eseat,m akes ure that:
Ryou are as far away from th edriver'sa ir bag as
possible
Ryou are sittin ginanormalupright position
Ryou can fasten th eseat belt properly
Ryou have moved th ebackres ttoana lmost
vertical position
Ryou have set th eseat cushion angle so that
your thighs are gently supported
Ryou can depress th epedals properly
XCheckw hether th ehead restraint is adjusted
properly. When doings
o, makesure that you have
adjusted th ehead restraint so that th eback of
your head is supported at eye leve lbythe
cente rofthehead restraint.
XObserv ethe safety note sonsteering column
adjustmen t(Ypage 86).
XMakesure that steering wheel :is adjusted
properly.
Adjusting th esteering wheel man-
ually(
Ypage 86)
Adjusts th esteering wheel electrically
(
Ypage 87)
When adjusting th esteering wheel column,
mak esure that:
Ryou can hold th esteering wheel withy our
arm sslightly bent
Ryou can mov eyour legs freely
Ryou can see all th edisplays in th einstrument
cluste rclearly
XObserv ethe safety guideline sfor seat belts
(Ypage 39).
XCheckw hether you have fastened seat
belt ;properl y(Ypage 40).
The seat belt should:
Rfit snugly across your body
Rbe routed across th emiddle of your shoulder
Rbe routed in your pelvic area across th ehip
joints
XBefore starting off ,adjust th erear-view mirror
and th eexteri or mirror s(Ypage 88) in such
aw ay that you have agood view of road and
traffic conditions.
XVehicles with amemory function: save the
seat,s teering wheel and exterior mirror set-
tings (
Ypage 91).
Seats
Important safety notes
GWARNING
Children coul dbecome trapped if they adjust
th es eats, particularly when unattended.
Thereisar iskofi njury.
When leaving th evehicle ,always tak ethe
SmartKey withy ou and lockthevehicle .Never
leave childre nunsupervised in th evehicle.
82Seats
Seats, steerin gwheel and mirrors
Page 88 of 294
XPress button:repeatedly until the desired
heating level is set.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iThe blower continues runnin gfor seven sec-
onds to cool down the heating elements.
iIf the battery voltage is too low, AIRSCARF
may switch off.
Problems with AIRSCARF
AIRSCARF has switched off prematurely or will
not switch on. The vehicle's electrical system
voltage is too low because too many electrical
consumers are switched on.
XSwitc hoff electrical consumers that you do
not need, such as the rear window defroster
or interior lighting.
XSwitc honA IRSCARF again.
Steering wheel
Important safety notes
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steerin gwheel or mirrors
Rfasten the seat belt
There is arisk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
GWARNING
Children could injure themselves if they
adjust the steerin gwheel. There is arisk of
injury.
When leaving the vehicle, alwayst ake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The electrically adjustable steerin gwheel can
still be adjusted when there is no SmartKey in
the ignition lock.
Adjusting the steering wheel man-
ually
GWARNING
If the steerin gwheel is unlocked while the
vehicle is in motion ,itcould change position
unexpectedly. This could cause you to lose
control of the vehicle. There is arisk of an
accident.
Before starting off, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion.
:Release lever
;Adjust sthe steerin gwheel height
=Adjust sthe steerin gwheel position (fore-
and-aft adjustment)
XPush release lever :down completely in the
direction of the arrow.
The steerin gcolumn is unlocked.
XAdjust the steerin gwheel to the desired posi-
tion.
XPush release lever :up completely.
The steerin gcolumn is locked.
XCheck if the steerin gcolumn is locked. When
doing so, try to push the steerin gwheel up or
down or try to move it in the fore-and-aft
direction.
86Steering wheel
Seats, steering wheel and mirrors
Page 103 of 294
Problems with the windshield wipers
ProblemPossible causes/consequences andMSolutions
The windshield wipers
are jammed.Leaves or snow, for example, may be obstructing the windshield wiper
movement.The wiper motor has been deactivated.
XFor safety reasons, you should remove the SmartKey from the igni-
tion lock.
or
XSwitch off the engine using the Start/Stop button and open the
driver's door.
XRemove the cause of the obstruction.
XSwitch the windshield wipers back on.
The windshield wipers
fail completely.The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the combination switch.
XHave the windshield wipers checked at aqualified specialist work-
shop.
The windshield washer
fluid from the spray noz-
zles no longer hits the
center of the windshield.The spray nozzles are misaligned.
XHave the spray nozzles adjusted at aqualified specialist workshop.
Windshield wipers101
Lights and windshieldw ipers
Z
Page 118 of 294
As soonasthe ignition is switched on, al lthe
indicator lamps in the instrument cluster light
up .Further informatio nonsituations where an
indicator lamp either fails to go outa fterstarting
the engine or lights up whil edriving
(
Ypage 204).
If Start/Stop button :hasn ot yetbeen
pressed, thisc orrespondstot he key being
remove dfrom the ignition.
XTo switc honthe power supply: press
Start/Stop button :once.
The powe rsuppl yiss witched on. Yo ucan now
activate the windshield wipers, for example.
The powe rsuppl yiss witched off agai nif:
Rthe driver's door is opene dand
Ryoup ress Start/Stop button :twice when
in thisp osition
XTo switc honthe ignition: press Start/Stop
button :twice.
The ignition is switched on.
If yo upress Start/Stop button :once when
in thisp osition, the ignition is switched off
again.
Removing the Start/Stopb utton
Youc an remove the Start/Stop button from the
ignition lock and start the vehicl easnormal
using the SmartKey.
XRemove Start/Stop button :from ignition
lock ;.
Yo udon ot have to remove the Start/Stop but-
ton from the ignition lock when yo uleave the
vehicle. Yo ushould, however, always take the
SmartKeyw ithy ou when leaving the vehicle. As
long as the Sma rtKey
isint
he vehicle:
Rthe vehiclecan be started using the Start/
Stop button
Rthe electrically powered equipment can be
operated
Starting the engine
Important safety notes
GWARNING
If children ar eleftu nsupervised in the vehicle,
they could:
Ropen the doors ,thuse ndangering other
people or roa dusers.
Rgeto utand disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicl ein
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission outo f
park position P
RStartthe engine.
There is ariskofana ccident and injury.
Whe nleavi ng the vehicle, always take the
SmartKeyw ithy ou and lock the vehicle. Never
leav echildren or animals unattended in the
vehicle. Alway skeept he SmartKeyo utof
reach of children.
GWARNING
Combustion engine semitp oiso nousexhaust
gases such as carbo nmonoxide. Inhaling
thes eexhaus tgases lead stopoisoning. There
is ar iskoff atalinjury.T herefore neve rleave
the engine running in enclose dspaces with-
outs ufficient ventilation.
GWARNING
Flammabl ematerial sintroduced through
environmentali nfluence or by animals can
ignite if in contact with the exhaus tsystem or
parts of the engine thath eatu p.There is arisk
of fire.
Carry outr egular checks to make sure that
ther eareno flammabl eforeig nmaterial sin
the engine compartment or in the exhaust
system.
During acolds tart, the engine runs at higher
speed stoenablethe catalytic converter to
116Driving
Driving an dparking
Page 123 of 294
ProblemPossible causes/consequences andMSolutions
The coolant temperature
gauge showsavalue
above 248 ‡(120 †).
The coolant warning
lamp may also be on and
aw arning tone may
sound.The coolant level is too low. The coolant is too hot and the engine is no
longer being cooled sufficiently.
XStop as soon as possible and allow the engine and the coolant to
cool down.
XCheck the coolant level (Ypage 233). Observe the warning notes
as you do so and add coolant if necessary.
If the coolant level is correct,t he engine radiator fan may be faulty. The
coolant is too hot and the engine is no longer being cooled sufficiently.
XAt coolant temperatures below 248 ‡(120 †), drive to the nearest
qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in moun-
tainou sterrai nand stop-and-go traffic.
DYNAMIC SELEC Tbutton
Use the DYNAMIC SELECT button to change the
drive program. Depending on the drive program selected the following vehicle characteristics
wil lchange:
Rthe drive (engine and transmission manage-
ment)
Rthe suspension( vehicles with adaptive
adjustabl edamping or AMG sports suspen-
sion)
Rthe steering
Rthe availability of the ECO start/stop function
Each time you start the engine with the Smart-
Key or the Start/Stop button, drive program Cis
activated. For further information about starting
the engine, see (
Ypag e116).
XPress DYNAMIC SELECT button :as many
times as necessary until the desired drive
programiss elected.
The selected drive programa ppears in the
multifunction display. After ashort time the displayg
oes out and the status icon of the
selected drive programa ppears.
In addition, the current drive programs ettings
are displayed briefly in the multimedi asystem
display.
iIn af ew countries, the ECO start/stop func-
tion is deactivated at the factory due to the
available fuel grade. In this case, the ECO
start/stop function is not available in any
drive program, regardless of the displayint he
multimedi asystem display.
Availabl edrive programs:
CComfortComfortabl eand economi-
cal driving characteristics
S SportSporty driving characteris-
tics
S+ Sport PlusParticularly sporty driving
characteristics
IIndividualIndividua lsettings
EEconomyParticularly economical
driving characteristics
Additional information for drive programs
(Ypag e125).
DYNAMICS ELECTbutton121
Driving and parking
Z