2017 MERCEDES-BENZ SLC lock

Problems with fuel and the fuel tank Problem
Possible causes/consequences and P Solutions
Fuel is leaking from the
vehicle. The fuel line or the fuel tank is faulty.
G WARNING
Risk of explosion or fire. X
Turn the SmartKey to position 0 immediately and remove it
( Y
page 115). X
Do not restart the engine under any circumstances. X
Consult aq ualified specialist workshop.
The fuel filler flap cannot
be opened. The fuel filler flap is not unlocked. X
Unlock the vehicle ( Y
page 63).
The SmartKey battery is discharged or nearly discharged. X
Unlock the vehicle using the mechanical key ( Y
page 65).
The fuel filler flap is unlocked, but the opening mechanism is jammed. X
Consult aq ualified specialist workshop.
Parking
Important safety notes
G WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system or exhaust
gas flow. There is ar isk of fire.
Park the vehicle so that no flammable mate-
rials come into contact with parts of the vehi-
cle which are hot. Take particular care not to
park on dry grassland or harvested grain
fields.
G WARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example: R
release the parking brake. R
shift the automatic transmission out of the
parking position P .R
start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is ar isk of
an accident and injury. When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
! Always secure the vehicle correctly against
rolling away .O therwise, the vehicle or its driv-
etrain could be damaged.
To ensure that the vehicle is secured against
rolling away unintentionally: R
the electric parking brake must be applied. R
the transmission must be in position P .R
the SmartKey must be removed from the igni-
tion lock. R
the front wheels must be turned towards the
curb on steep uphill or downhill gradients.
Switching off the engine
G WARNING
The automatic transmission switches to neu-
tral position N when you switch off the engine.
The vehicle may roll away .T here is ar isk of an
accident.
After switching off the engine, always switch
to parking position P .P revent the parked vehi-Parking 131
Driving and parking Z

cle from rolling away by applying the parking
brake. X
Appl yt he electri cp ar king brake.X
Shif tt he transmission to position P
( Y
page 123).X
With the SmartKey: turn the SmartKey to
position 0 in the ignition lock and remove it.
The immobilizer is activated. X
With KEYLESS-GO: press the KEYLESS-GO
Start/Stop button ( Y
page 115).
The engine stop sa nd al lt he indicator lamps in
the instrument cluster go out.
Whe nt he driver' sd oo risc losed, this corre-
sponds to SmartKey position 1 .W he nt he
driver' sd oo riso pen, this corresponds to
SmartKey position 0 ( Y
page 115).
The engine can be switched off while the vehicle
is in motio nb yp ressing and holding the Start/
Stop button for abou tt hree seconds. Thi sf unc-
tion operate si ndependently of the ECO start/
stop automatic engine switch-off function.
Electric parkin gb rake
General notes
G WARNING
If yo ul ea ve childre nu nsupervised in the vehi-
cle ,t hey could set it in motio nb y, for example:R
release the parking brake. R
shift the automatic transmission ou toft he
parking position P .R
star tt he engine.
In addition, they may operate vehicle equip-
ment and become trapped .T here is ar is ko f
an accident and injury.
Whe nl ea ving the vehicle ,a lway st ake the
SmartKey with yo ua nd lock the vehicle .N ever
leave childre nu nsupervised in the vehicle. The function of the electri cp ar king brake is
dependent on the on-board voltage .Ift he on-
board voltage is low or there is am alfunction in
the system, it may not be possible to appl yt he
released parking brake. X
If this is the case ,o nly park the vehicle on
level ground and secure it to prevent it rolling
away. X
Shif tt he automatic transmission to position
P .
It may not be possible to release an applied
parking brake if the on-board voltage is low or
there is am alfunction in the system. Contact a
qualified specialist workshop.
The electri cp ar king brake performs af unction
test at regula ri nterval sw hile the engine is
switched off. The sounds that can be heard while
this is occurring are normal.
Applyin gorr eleasin gm anually
X
To engage: push handle C .
Whe nt he electri cp ar king brake is engaged,
the I (USA only )o r $ (Canada only)
red indicator lamp lights up in the instrument
cluster.
The electri cp ar king brake can also be applied
whe nt he SmartKey is removed. X
To release: pull handle C .
The red I (USA only )o r $ (Canada
only )i ndicator lamp in the instrument cluster
goe so ut .
The electri cp ar king brake can only be released: R
if the SmartKey is in position 1 in the ignition
lock ( Y
page 115) or R
if the ignition wa ss witched on using the
Start/Stop button132
Parking
Drivin ga nd parking

Limited braking performance on salt-
treated roads If you driv eons alted roads ,al ayer of salt resi-
due may for mont he brak ed isc sa nd brake
pads. This can result in as ignificantly longer
braking distance. R
In orde rtop revent any salt build-up, apply the
brakes occasionally while paying attention to
th et ra ffic conditions.R
Carefully depress th eb rak ep edal and the
beginnin ga nd end of aj ou rney.R
Maintain ag reater distanc etot he vehicle
ahead.
Servicing th eb rakes
! The brak ef luid level may be to ol ow, if:R
if th er ed brak ew arning lamp light supi n
th ei nstrumen tc luster andR
you hear aw arning tone while th ee ngine is
running
Observe additional warning messages in the
multifunction display.
The brak ef luid level may be to ol ow due to
brak ep ad wear or leaking brak el ines.
Hav et he brak es ystem checked immediately.
Consult aq ualifie ds pecialist workshop to
arrange this.
! As th eE SP ®
system operates automatically,
th ee ngine and th ei gnitio nm ust be switched
off (SmartKey in position 0 or 1 in th ei gnition
lock) if th ee lectric parking brak eisb ein gt es-
ted on ab rak ed ynamometer (maximum
10 seconds).
Brakin gt ri ggered automatically by ESP ®
may
seriously damage th eb rak es ystem.
All check sa nd maintenanc ew ork on th eb rake
system must be carried out at aq ualifie ds pe-
cialis tw orkshop.
Hav eb rak ep ads installe da nd brak ef luid
replaced at aq ualifie ds pecialist workshop.
If th eb rak es ystem has onl yb een subject to
moderat el oads, you should tes tt he functional-
ity of your brakes at regular intervals.
Information on BA S( Brake Assist )( Y
page 55).
Mercedes-Ben zr ecommend st ha ty ou onl yh ave
brak ep ads/linings installe dony our vehicle
whic hh ave been approved for Mercedes-Benz
vehicle sorw hic hc orrespon dtoane quivalent
qualit ys ta ndard. Brake pads/linings whic hh ave not been approved for Mercedes-Ben zv ehicle s
or whic ha re n ot of an equivalent qualit yc ould
affect your vehicle's operatin gs afety.
Mercedes-Ben zr ecommend st ha ty ou onl yu se
brak ef luid that has been specially approved for
your vehicle by Mercedes-Benz, or whic hc orre-
sponds to an equivalent qualit ys ta ndard. Brake
fluid whic hh as not been approved for
Mercedes-Ben zv ehicle sorw hic hisn ot of an
equivalent qualit yc ould affect your vehicle's
operatin gs afety.
High-performance brake system
(Mercedes-Benz SLC 43 AMG) AM Gb rak es ystems are designed for heavy
loads and have component sw ith corresponding
properties. This may lead to noise when braking.
This will depen do n: R
Speed R
Brakin gf orce R
Ambien tc onditions, e.g .t emperature and
humidity
The wear of individual component soft he brake
system, such as th eb rak ep ads/linings or brake
discs, depends on th ei ndividual driving style
and operatin gc onditions.
For this reason, it is impossibl etos ta te am ile-
age that will be valid unde ra ll circumstances. An
aggressiv ed riving style will lead to high wear.
You can obtain mor ei nformatio nont hi sf ro ma
qualifie ds pecialist workshop.
New and replaced brak ep ads and disc so nly
reac ht he ir optimum braking effect after several
hundred kilometers of driving .C ompensate for
this by applyin gg reater force to th eb rak ep edal.
Keep this in mind, and adapt your driving and
braking accordingl yd urin gt hi sb reak-in period.
Excessive heavy braking results in correspond-
ingly high brak ew ear. Observe th eb rak es ystem
warning lamp in th ei nstrumen tc luster and note
any brak es ta tus messages in th em ultifunction
display. Especially for high performanc ed riving,
it is important to maintain and have th eb rake
system checked regularly. Driving tips 137
Driving and parking Z

Drivin gonw et road s
Hydroplaning If water has accumulated to ac ertai nd ept ho n
th er oa ds urface, there is ad anger of hydro-
planin go cc urring, eve ni f:R
you drive at low speeds R
th et ir es hav ea dequat et re ad dept h
Fo rt hi sr eason ,int he event of heav yr ain or in
condition sinw hic hh ydroplaning may occur ,
you mus td rive in th ef ol lowin gm anner:R
lowe ry our speedR
avoid rut sR
avoid sudden steerin gm ov ementsR
brake carefully
Drivin gonf looded road s
! Do no td rive through floode da reas. Chec k
th ed ept hofa ny water befor ed rivin gt hrou gh
it .D ri ve slowly through standin gw ater. Oth-
erwise ,w ater may ente rt he vehicle interio ro r
th ee ng in ec om partment. Thi sc an damage
th ee lectronic component sint he engin eo r
th ea utomatic transmission. Water can also
be drawn in by th ee ng ine's air suction nozzles
and this can cause engin ed amage.
Winte rd ri vin g
G WARNING
If you shift down on as lipper yr oa ds urfac ei n
an attempt to increase th ee ng ine's braking
effect ,t he drive wheels could los et he ir grip.
There is an increase dd anger of skidding and
accidents .
Do no ts hift down fo ra dditional engin eb rak-
in gonas lipper yr oa ds urface.
G DANGER
If th ee xh aus tp ipe is blocke dora dequat e
ventilation is no tp ossible, poisonous gases
suc hasc arbon monoxide (CO) may ente rt he
vehicle. Thi sist he case, e.g. if th ev ehicle
becomes trappe dins no w. There is ar is ko f
fatal injury. If you leav et he engin eort he auxiliar yh eatin g
running ,m ak es ur et he exhaus tp ipe and are a
around th ev ehicle are clear of snow. To
ensur eana dequat es upply of fresh air, ope na
window on th es id eoft he vehicle that is no t
facin gi nt ot he wind.
Hav ey our vehicle winter-proofed at aq ualified
specialis tw orkshop at th eo ns et of winter.
Drive particularly carefully on slipper yr oa ds ur -
faces. Avoid sudden acceleration ,s te erin ga nd
braking maneuvers .Don ot use cruise control.
If th ev ehicle threatens to skid or canno tb e
stopped when movin gatl ow speed:X
Shift th et ra nsmissio ntop osition N .
The outsid et em perature indicator is no t
designed to serve as an ice-warnin gd evic ea nd
is therefore unsuitable fo rt ha tp urpose.
Changes in th eo utsid et em perature are dis -
playe da fter as hort delay.
Indicated temperature sj us ta bov et he freezin g
poin tdon ot guarantee that th er oa ds urfac ei s
free of ice. The road may still be icy, especially in
wooded areas or on bridges. The vehicle could
skid if you fail to adapt your drivin gs ty le. Always
adapt your drivin gs ty le and drive at as peed to
suit th ep revailin gw eather conditions.
You should pay spe cia l attention to road condi-
ti on sw hen temperature sa re around freezin g
point.
Fo rm or ei nformati on on drivin gw it hs no w
chains, see ( Y
page 257).
Fo rm or ei nformat ion on drivin gw it hs ummer
tires ,s ee ( Y
page 257).
Observ et he note sint he "Winte ro peration "s ec -
tion ( Y
page 257).
Drivin gs ystems
Cruis ec ontro l
General notes
Cruise contro lm aintain sac onstan tr oa ds peed
fo ry ou. It brake sa utomatically in order to avoid
exceedin gt he set speed. On lon ga nd steep
downhill gradients, especially if th ev ehicle is
laden, you mus ts elec tal owe rg ear in goo dt im e.
By doin gs o, you will mak eu se of th eb raking
effect of th ee ng ine. Thi sr elieves th el oad on th e138
Driving systems
Driving an dp arking

Under the following circumstances, the rear
view camera will not function, or will function in
al imited manner: R
if the trunk lid is open R
in heavy rain, snow or fog R
at night or in very dark places R
if the camera is exposed to very bright light R
if the area is lit by fluorescent bulb sorL ED
lighting (the displa ym ay flicker)R
if there is as udden change in temperature,
e.g. when driving into ah eated garage in win-
ter R
if the camera lens is dirty or obstructed
Observe the notes on cleaning
( Y
page 240) R
if the rear of your vehicle is damaged. In this
event, have the camera position and setting
checked at aq ualified specialist workshop
The field of vision and other functions of the rear
view camera may be restricted due to additional
accessories on the rear of the vehicle (e.g.
license plate holder, bicycle rack).
For technical reasons, leaving the standard
height can result in inaccuracies in the guide
lines on vehicles with ah eight-adjustable chas-
sis.
i The rear view camera is protected from rain-
drops and dust by means of af lap. When the
rear view camera is activated, this flap opens.
The flap closes agai nw hen:R
you have finished the maneuvering process R
you switch off the engine R
you open the trunk
Observe the notes on cleaning ( Y
page 240).
For technical reasons, the flap may remain
open briefly after the rear view camera has
been deactivated.
Activating/deactivating the rear view
camera X
To activate: make sure that the SmartKey is
in position 2 in the ignition lock.X
Make sure that the Activation by Rg ear
function is selected in the multimedia system;
see the Digital Operator's Manual. X
Engage reverse gear.
The rear view camera flap opens. The multi-
media system shows the area behind the vehi-
cle with guide lines. The image from the rear view camera is avail-
able throughout the maneuvering process.
To deactivate: the rear view camera deacti-
vates if you shift the transmission to P or after
driving forwards as hort distance.
Displays in the multimedia system The rear view camera may show ad istorted view
of obstacles, show them incorrectly or not at all.
The rear view camera does not show objects in
the following positions: R
very close to the rear bumper R
under the rear bumper R
in close range above the handle on the trunk
lid
! Objects not at ground level may appea rt o
be further awa yt han they actually are, e.g.: R
the bumper of ap arked vehicle R
the drawba rofat railer R
the ball coupling of at railer tow hitchR
the rear section of an HGV R
as lanted post
Use the guidelines only for orientation.
Approach objects no further than the bottom-
most guideline.
C
Yello wg uide line at ad istance of approx-
imately 13 ft (4.0 m) from the rear of the
vehicle
D
White guide line without turning the steering
wheel, vehicle width including the exterior
mirrors (static)

Blind Spot Assist monitors the are aupto10f t
(3.0 m) behind your vehicle and directly nex tt o
your vehicle, as shown in the diagram. For this
purpose, Blind Spot Assist uses radar sensor si n
the rear bumper.
If the lanes are narrow, vehicles driving in the
lane beyond the lane nex ttoy our vehicle may be
indicated, especially if the vehicles are not driv-
ing in the middle of their lane. This may be the
case if ther ea re vehicles driving at the inner
edge of their lanes.
Due to the natur eoft he system:R
warning sm ay be issued in error when driving
close to crash barriers or similar solid lane
borders. R
the warning is canceled when driving for an
extended period nex ttol ong vehicles, such as
trucks.
Indicator and warning display
C
Yellow indicator lamp/red warning lamp
Blind Spot Assist is not activ eats peeds below
approximately 20 mph (30 km/h). Vehicles in
the monitoring range are then not indicated.
When Blind Spot Assist is activated, indicator
lamp C in the exterior mirror sl ights up yellow
at speeds of up to 20 mph (3 0k m/ h) .Ats peeds
above 20 mph (30 km/h), the indicator lamp
goe so ut and Blind Spot Assist is operational.
If av ehicl eisd etected within the blind spot
monitoring rang eats peeds above 20 mph
(30 km/h), warning lamp C on the correspond-
ing sid el ig hts up red .T hi sw ar ning is always
emitted when av ehicl ee nter st he blind spot
monitoring rang ef rom behind or from the side.
Whe ny ou overtake av ehicle, the warning only
occurs if the difference in speed is less than
7m ph (12 km/h).
The yellow indicator lamp goe so ut if reverse
gea rise ngaged .Int his event, Blind Spot Assist
is no longer active. The brightness of the indicator/warning lamps
is adjuste da ut omaticall ya ccording to the ambi-
ent light.
Collisio nw arningIf av ehicl eisd etected in the monitoring rang eo f
Blind Spot Assist and yo us witch on the corre-
sponding turn signal ,ad oubl ew ar ning tone
sounds. Re dw ar ning lamp C flashes. If the turn
signal remains on, vehicles detected are indica-
ted by the flashing of red warning lamp C .
There are no further warning tones.
Switchin gonB lind Spo tA ssis tX
Make sure that Blind Spot Assist
( Y
page 171 )i sa ctivate dint he on-board
computer. X
Turn the SmartKey to position 2 in the ignition
lock.
Warning lamps C in the exterio rm irrors light
up red for approximately 1.5 seconds and
then turn yellow.
Lan eK ee ping Assist
General notes
Lane Keeping Assist monitors the are ainf ront of
your vehicl ew it hc amera C ,w hi ch is mounted
at the top of the windshield .L ane Keeping Assist
detects lane markings on the roa da nd warns
yo ub efore yo ul ea ve your lane unintentionally.
If yo us elect km on the on-board compute rint he
Display Unit Speed-/Odometer function
( Y
page 172), Lane Keeping Assist is active
starting at as peed of 60 km/h .Ift he miles
display uni ti ss elected ,t he assistance range
begins at 40 mph.
Aw ar ning may be given if af ront wheel passes
ove ral an em arking. It will warn yo ubym eans of
intermittent vibration in the steering wheel for
up to 1.5 seconds.160
Driving systems
Driving and parking

Important safety notes
G WARNIN G
If you operate information systems and com-
munication equipmen ti ntegrate dint he vehi-
cle while driving ,y ou will be distracte df ro m
traffic conditions. You could also lose control
of th ev ehicle. Ther eisar is kofana ccident.
Only operate th ee quipmen tw hen th et ra ffic
situation permits. If you are no ts ur et ha tt hi s
is possible ,p ark th ev ehicl ep ayin ga ttention
to traffic condition sa nd operate th ee quip-
men tw hen th ev ehicl eiss ta tionary.
You must observ et he legal requirements for th e
country in whic hy ou are currentl yd riving when
operating th eo n-bo ard computer.
G WARNIN G
If th ei nstrumen tc luste rh as faile dorm al-
functioned, you may no tr ecognize function
restriction sins ystems relevan ttos afety. The
operating safet yofy our vehicl em ay be
impaired .T her eisar is kofana ccident.
Drive on carefully. Hav et he vehicl ec hecked
at aq ualified specialist workshop immedi-
ately.
The on-board computer only shows message so r
warning sf ro mc ertai ns ystems in th em ultifunc-
tion display. You should therefor em ak es ur e
your vehicl eiso perating safely at all times .
If th eo perating safet yofy our vehicl ei s
impaired ,p ull ove rass oo nasitiss af etodos o.
Contac taq ualified specialist workshop.
Fo rano verview, see th ei nstrumen tp anel illus-
tration ( Y
page 31).
Display sa nd operation
Instrumen tc luster lighting
The lighting in th ei nstrumen tc luster, in th ed is-
plays and th ec ontrols in th ev ehicl ei nterior can
be adjusted usin gt he brightness control knob.
The brightness control knob is locate dont he
botto ml ef toft he instrumen tc luste r
( Y
page 31). X
Turn th eb rightness control knob clockwise or
counter-clockwise.
If you tur nt he ligh ts witch ( Y
page 93 )t ot he
X , ` or X position ,t he brightness
will depend upon th eb rightness of th ea mbi -
en tl ight.
The ligh ts ensor in th ei nstrumen tc luste r
automatically control st he brightness of th e
multifunction display. In daylight, th ed isplays
in th ei nstrumen tc luste ra re no ti lluminated.
Speedometer with segments The segments in th es peedometer indicat e
whic hs pee dr ange is available. R
Cruis ec ontro la ctivated ( Y
page 138):
The segments ligh tupf ro mt he store ds pee d
to th em aximum speed. R
Distanc eP ilot DISTRONI Cisa ctivated
( Y
page 140):
On eort wo segments in th es et spee dr ange
ligh tu p. R
Distanc eP ilot DISTRONI Cd etects av ehicl ei n
fron tm oving mor es lowly than th es to re d
speed:
The segments between th es pee doft he vehi-
cle in fron ta nd th es to re ds pee dl igh tu p.
Tachometer
! Do no td riv eint he overrevving range, as this
could damag et he engine.
The red ban dint he tachometer indicates th e
engine's overrevving range.
The fuel suppl yisi nterrupted to protect th e
engin ew hen th er ed ban disr eached.
Outsid et emperatur ed isplayYou should pay special attention to road condi-
tion sw hen temperatures are aroun df re ezing
point.
Bea rinm in dt ha tt he outside temperature dis-
play indicates th et em perature measured and
does no tr ecord th er oad temperature.
The outside temperature display is in th em ulti-
function display ( Y
page 165).
Ac ha ng eint he outside temperature is shown in
th em ultifunction display after ad elay.Display sa nd operation 163
On-boar dc omputer and displays Z

X
Press v to confirm.X
Press the d or c button to select the
Amb. Light +/- function.
The curren ts etting appears.X
Press v to confirm.X
Press the d or c button to adjust the
brightness to any level from Off to Level 5
(bright). X
Press the v or 8 button to save the
setting.
Setting the ambient lighting color X
Press the Y or e button on the steering
wheel to select the Sett. menu.X
Press the d or c button to select the
Light submenu.X
Press v to confirm.X
Press the d or c button to select the
Amb. Light Col. function.X
Press v to confirm.X
Press the d or c button to set the color
to SOLAR , SOLAR Orange or SOLAR Red .X
Press the v or 8 button to save the
setting.
Activating/deactivating surround light-
ing and exterior lighting delayed switch-
off X
Press the Y or e button on the steering
wheel to select the Sett. menu.X
Press the d or c button to select the
Light submenu.X
Press v to confirm.X
Press d or c to select the Surround
Lighting function.
If the Surround Lighting function is activa-
ted, the multifunction display shows the light
cone and the area around the vehicle in
orange. X
Press the v button to save the setting.
Deactivating delayed switch-off of the exterior
lighting temporarily: X
Before leaving the vehicle, turn the SmartKey
to position 0 in the ignition lock.X
Turn the SmartKey to position 2 in the ignition
lock.
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the engine. If you have activated the Surround lighting
function and you turn the light switch to X ,
the following functions are activated when it is
dark: R
surround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the SmartKey. If you start the engine, the
surround lighting is switched off and auto-
matic headlamp mode is activated
( Y
page 93). R
exterior lighting delayed switch-off: the
exterior lighting remains lit for 60 seconds
after the engine is switched off. If you close all
the doors and the trunk lid, the exterior light-
ing goes off after 15 seconds.
Dependin gony our vehicle's equipment, when
the surround lighting and delayed switch-off
exterior lighting are on, the following light up: R
Parking lamps R
Low-beam headlamps R
Daytime runnin gl amps R
Side marker lamps R
Surround lighting in the exterior mirrors
Activating/deactivating the interior light-
ing delayed switch-off If you activat et he Interior Lighting Delay
function, the interior lighting remains on for
20 seconds after you remove the SmartKey from
the ignition lock. X
Press the Y or e button on the steering
wheel to select the Sett. menu.X
Press the d or c button to select the
Light submenu. X
Press v to confirm. X
Press the d or c button to select the
Interior Lighting Delay function.
When the Interior Lighting Delay func-
tion is activated, the vehicle interior is dis-
played in orange in the multifunction display. X
Press the v button to save the setting.
Vehicle
Activating/deactivating the automatic
door locking mechanism
If you activat et he Automatic Door Lock func-
tion, the vehicle is centrally locked above a
speed of approximately 9m ph (15 km/h).Menus and submenus 173
On-board computer and displays Z