battery MERCEDES-BENZ SLC 2017 User Guide

tion H .S imultaneousl yp ul lt he trunk li dh an -
dle.
The trunk is unlocked. X
Turn the mechanica lk ey back to position G
and remove it. X
Insert the mechanica lk ey into the SmartKey.
Trunk emergenc yr eleaseYo uc an unlock the trunk li df ro mt he insid ew it h
the emergency release button.
X
Press emergency release button C briefly.
The trunk li du nlocks and opens.
The trunk li dc an be unlocke da nd opene dw it h
the trunk li de mergency release when the vehi-
cle is stationar yorw hile driving.
The trunk li de mergency release does not unlock
the trunk li dift he battery is disconnecte do r
discharged.
Trunk li de mergency release light:R
Emergency release button C flashe sf or
30 minute sa ft er the trunk li diso pe nedR
Emergency release button C flashe sf or
60 minute sa fter the trunk li disc losed
Side windows
Important safety notes
G WARNING
Whil eo pe ning the side windows ,b od yp ar ts
could become trapped between the side win-
do wa nd the door frame as the side window
moves .T here is ar is kofi njury.
Make sure tha tn obod yt ouche st he side win-
do wd ur in gt he opening procedure. If some- body become st rapped ,r elease the switch or
pull the switch to close the side windo wa gain .
G WARNING
Whil ec losing the side windows ,b od yp ar ts in
the closing area could become trapped .T here
is ar is kofi njury.
When closing make sure tha tnop ar ts of the
body ar eint he closing area .Ifs omebody
become st rapped ,r elease the switch or press
the switch to open the side windo wa gain .
G WARNING
If children operate the side windows they
could become trapped ,p ar ticularly if the ya re
left unsupervised .T here is ar is kofi njury.
When leaving the vehicle, always take the
SmartKe yw it hy ou and lock the vehicle. Never
leav ec hildren unsupervised in the vehicle.
Side windo wr eversin gf ea tureThe front side windows ar ee quippe dw it ha n
automatic reversing feature. If as olid object
blocks or restricts the upward movement of one
of the front side windows durin gt he closing
process, the side windo wo pe ns agai na ut omat-
ically. During the manua lc losing process, the
side windo wo nl yo pe ns agai na ut omatically
after the corresponding switch is released. How-
ever, the automatic reversing featur eiso nl ya n
ai da nd does not relieve yo uoft he responsibility
of paying attentio nw he nc losing as id ew in dow.
G WARNING
The reversing featur ed oe sn ot react:R
to soft, light and thi no bj ects ,e .g .s mall fin-
gers R
ove rt he last 1/6 in(4 mm) of the closing
movement R
durin gr esetting R
when closing the side windo wa gain man-
uall yi mm ediatel ya ft er automatic reversing
Thi sm eans tha tt he reversing featur ec annot
prevent someone being trapped in these sit-
uations. There is ar is kofi njury.72
Side windows
Openin ga nd closing

You can adjust the contour of the seat backrests
individually to provide optimum support for your
back.
Switching th es eat heating on/off
Switching on/off
G WARNING
Repeatedly switching on the seat heatin gc an
cause the seat cushio na nd backrest pads to
becom ev ery hot .T he health of person sw ith
limited temperature sensitivity or al imited
ability to react to excessively high tempera-
ture sm ay be affected or the ym ay even suffer
burn-like injuries. There is ar isk of injury.
Therefore, do not switc ht he seat heatin go n
repeatedly.
Driver' sa nd front-passenger seat
The three red indicator lamps in the button indi-
cat et he heatin gl evel you have selected.
The syste ma utomatically switches down from
level 3 to level 2 afte ra pproximately eight
minutes.
The syste ma utomatically switches down from
level 2 to level 1 afte ra pproximately ten
minutes.
The syste ma utomatically switches off approx-
imately 20 minutes afte ritiss et to level 1 .X
Make sure that the SmartKey is in position 1
or 2 in the ignition lock.X
To switch on: press button C repeatedly
until the desired heatin gl evel is set.X
To switch off: press button C repeatedly
until all the indicator lamps go out. Problem sw ith th es eat heatingThe seat heatin gh as switched off prematurely
or cannot be switched on. The vehicle's electri-
cal syste mv oltage is too low because too many
electrical consumers are switched on. X
Switch off electrical consumers that you do
not need, such as the rear window defroster
or interior lighting. X
Onc et he battery is sufficiently charged,
switc hont he seat heatin ga gain.
AIRSCARF
Switching on/off
G WARNING
When AIRSCARF is switched on, very hot air
can flow from the vents in the head restraints.
This could result in burns in the immediate
vicinity of the air vents. There is ar isk of injury.
Reduce the heater output befor eitb ecomes
too hot.
The AIRSCARF function warms the head and
nec ka rea of vehicle occupant sw ith warm air.
The warm air flows out of the holes in the head
restraints.
The three red indicator lamps in the button indi-
cat et he heatin gl evel you have selected. X
Make sure that the SmartKey is in position 2
in the ignition lock. X
To switch on: press button C .
Three red indicator lamps in the button light
up. The blower starts up afte rap reheating
phase of seven seconds. Seats 85
Seats, steering wheel and mirrors Z

X
Press button C repeatedly until the desired
heating level is set. X
To switch off: press button C repeatedly
until all the indicator lamps go out.
i The blower continues runnin gf or seven sec-
onds to cool down the heating elements.
i If 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. X
Switc ho ff electrical consumers that you do
not need, such as the rear window defroster
or interior lighting. X
Switc honA IRSCARF again.
Steering wheel
Important safety notes
G WARNING
You could lose control of your vehicle if you do
the following while driving: R
adjust the driver's seat, head restraint,
steerin gw heel or mirrorsR
fasten the seat belt
There is ar isk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
G WARNING
Children could injure themselves if they
adjust the steerin gw heel. There is ar isk of
injury.
When leaving the vehicle, alway st ake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The electrically adjustable steerin gw heel can
still be adjusted when there is no SmartKey in
the ignition lock. Adjusting the steering wheel man-
ually
G WARNING
If the steerin gw heel is unlocked while the
vehicle is in motion ,itc ould change position
unexpectedly. This could cause you to lose
control of the vehicle. There is ar isk of an
accident.
Before starting off, make sure the steering
wheel is locked. Never unlock the steering
wheel while the vehicle is in motion.
C
Release lever D
Adjust st he steerin gw heel height

The daytime runnin gl amps improve the visibility
of your vehicle during the day. To do this, the
daytime runnin gl amps function must be
switched on using the on-board computer
( Y
page 172).
If the engine is runnin ga nd you turn the light
switch to ` or X ,t he manual settings
take precedenc eo ver the daytime running
lamps.
Low-beam headlamps
G WARNING
When the light switch is set to X ,t he low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is ar isk of an
accident.
In such situations, turn the light switch to
X .
Even if the light sensor does not detect that it is
dark, the parking lamps and low-beam head-
lamps switch on when the ignition is switched on
and the light switch is set to the X position.
This is ap articularly useful function in the event
of rain and fog. X
To switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to posi-
tion 2 or start the engine.X
Turn the light switch to X .
The green X indicator lamp in the instru-
ment cluster lights up.
Rear fog lamp
The rear fog lamp improves visibility of your
vehicle for the traffic behind in the event of thick
fog. Please take not eoft he country-specific
regulations for the use of rear fog lamps. X
To switch on the rear fog lamps: turn the
SmartKey to position 2 in the ignition lock or
start the engine. X
Turn the light switch to X or X .X
Press the ^ button.
The yellow ^ indicator lamp in the instru-
ment cluster lights up. X
To switch off the rear fog lamp: press the
^ button.
The yellow ^ indicator lamp in the instru-
ment cluster goes out. Parking lamps
! If the battery charge is very low, the parking
lamps or standin gl amps are automatically
switched off to enable the next engine start.
Always park your vehicle safely and suffi-
ciently lit according to legal standards. Avoid
using the parking lamps ` over ap eriod of
several hours. If possible, switch on the right-
hand d or left-hand c standin gl amp.X
To switch on: turn the light switch to ` .
The green ` indicator lamp in the instru-
ment cluster lights up.
Standing lamps Switching on the standin gl amps ensures the
corresponding side of the vehicle is illuminated. X
To switch on the standing lamps: the
SmartKey is not in the ignition lock or it is in
position 0 . X
Turn the light switch to c (left-han ds ide of
the vehicle) or d (right-hand side of the
vehicle).
Combination switch
C
High-beam headlamps D
Turn signal, right

Problems with the rear window defroster Problem
Possible causes/consequences and P Solutions
The indicator lamp on
the l button flashes.
The rear window
defroster has deactiva-
ted prematurely or can-
not be activated. The on-board voltage is too low because too many electrical consum-
ers are switched on. X
Switch off any consumers that are not required, e.g. reading lamps,
interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window defroster
can be activated again.
The roof is open. X
Close the roof.
When the roof is closed, the rear window defroster can be activated
again.
Switching air-recirculation mode
on/off
General notes If you switch on air-recirculation mode, the win-
dows can fog up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows from fog-
ging up.
Switching on/off X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 115).X
To switch on: press the r button.
The indicator lamp in the r button lights
up.
i Air-recirculation mode is automatically acti-
vated at high levels of pollution (dual-zone
automatic climate control only) or at high out-
side temperatures. When air-recirculation
mode is activated automatically, the indicator
lamp in the r button is not lit. Outside air
is added after about 30 minutes. X
To switch off: press the r button.
The indicator lamp in the r button goes
out. i Air-recirculation mode deactivates auto-
matically: R
after approximately five minutes at outside
temperatures below approximately 41 ‡
(5 †) R
after approximately five minutes if cooling
with air dehumidification is deactivated R
after approximately 30 minutes at outside
temperatures above approximately 41 ‡
(5 †) if the "Cooling with air dehumidifica-
tion" function is activated
Switching the residual heat on or off
General notes The residual heat function is only available on
vehicles for Canada.
It is possible to make use of the residual heat of
the engine to continue heating the stationary
vehicle for up to 30 minutesafter the engine has
been switched off. The heating time depends on
the set interior temperature.
Activating/deactivating X
Turn the SmartKey to position 0 in the ignition
lock or remove it ( Y
page 115).X
To activate: press the K or V button.
The indicator lamp in the K or V button
lights up.
i The blower will run at al ow speed regardless
of the airflow setting.Operating the climate control systems 111
Climat ec ontrol

i If you activate the residual heat function at
high temperatures, only the ventilation wil lb e
activated. The blower runs at mediu ms peed.X
To deactivate: press the K or V but-
ton.
The indicator lamp in the K or V button
goes out.
Residua lh eat is deactivated automatically:R
after approximately 30 minutes R
when the ignition is switched on R
if the battery voltage drops
Setting the air vents
Important safety notes
G WARNING
Very hot or very cold air can flow from the air
vents. This could resul tinb urns or frostbite in
the immediate vicinity of the air vents. There
is ar isk of injury.
Make sure that all vehicle occupants always
maintain as ufficient distance to the air out-
lets. If necessary ,r edirect the airflow to
another area of the vehicle interior.
G WARNING
When AIRSCARF is switched on, very hot air
can flow from the vents in the head restraints.
This could resul tinb urns in the immediate
vicinity of the air vents. There is ar isk of injury.
Reduce the heater outpu tb efore it becomes
too hot.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes: R
keep the air inlet grill eont he hood and in the
engine compartment on the front-passenger
side free of blockages, such as ice, snow or
leaves. R
never cover the air vents or air intake grilles in
the vehicle interior.
i You can move the adjusters for the air vents
verticall yorh orizontally to set the direction of
the airflow. i For optimal climate control in the vehicle,
open the air vents completely and set the
adjusters to the central position.
Setting the center air vents X
To open the center air vents: turn the
adjuster in one of center air vents C counter-
clockwise. X
To close the center air vents: turn the
adjuster in one of center air vents C clock-
wise until it engages.
Setting the side air vents
C
Side window defroster vent
D
Side air vent X
To open as ide air vent: turn the adjuster in
the side air vent D to the left.X
To close as ide air vent: turn the adjuster in
the side air vent D to the right until it
engages.112
Setting the air vents
Climate control

R
the syste md et ects moisture on the wind-
shiel dw he nt he air-conditioning syste mi s
switched on R
the battery's condition of charge is too low
Shiftin gt he transmission to position P does not
start the engine.
Deactivatin gora ct ivatin gt he ECO
start/sto pf unctionX
To deactivate: press ECO button C .
Indicato rl am p D goes out.X
To activate: press ECO button C .
Indicato rl am p D lights up.
If indicator lamp D is off ,t he ECO start/stop
functio nh as been deactivated manuall yora s
the resul tofa malfunction. The engine will then
not be switched off automaticall yw he nt he vehi-
cle stops. Driving 119
Dr ivi ng an dp arking Z

Problems with the engine Problem
Possible causes/consequences and P Solutions
The engine does not
start. The HOLD function or Distanc eP ilot DISTRONIC is activated.X
Deactivat et he HOLD function ( Y
page 148) or Distanc eP ilot
DISTRONIC ( Y
page 146).X
Try to start the engine again.
The engine does not
start. The starter motor
can be heard. R
There is am alfunction in the engine electronics.R
There is am alfunction in the fuel supply.
Before attempting to start the engine again: X
Turn the SmartKey back to position 0 in the ignition lock.
or X
Press the Start/Stop button repeatedly until all indicator lamps in
the instrumen tc luster go out.X
Try to start the engine again ( Y
page 116). Avoid excessively long
and frequent attempt stos tart the engine as these will drain the
battery.
If the engine does not start after several attempts: X
Consult aq ualified specialist workshop.
The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak or
discharged. X
Jump-start the vehicle ( Y
page 249).
If the engine does not start despite attempt stoj ump-start it:X
Consult aq ualified specialist workshop.
The starter motor was exposed to at hermal load that was too high.X
Allow the starter motor to cool down for approximately two minutes. X
Try to start the engine again.
If the engine still does not start: X
Consult aq ualified specialist workshop.
The engine is not running
smoothly and is misfir-
ing. There is am alfunction in the engine electronics or in am echanical
componen toft he engine management system.X
Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it. X
Have the cause rectified immediately at aq ualified specialist work-
shop.120
Driving
Driving and parking

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

Applyin ga ut om aticallyThe electric parking brak eisa utomatically
applie dw hen th et ra nsmission is in position P
and : R
th ee ng in eiss witched off orR
th ed river is no tw earing as eat belt and th e
driver's door is opened
To preven tt he electric parking brak ef ro mb ein g
automatically applied, pull handle C .
The electric parking brak eisa lso engage da uto -
matically if: R
Distanc eP ilo tD ISTR ONI Cb ring st he vehicl e
to as ta ndstill orR
th eH OL Df unction is keepin gt he vehicl es ta -
tionary
In addition ,atl east on eoft he followin gc ondi -
tion sm us tbef ulfilled :R
th ee ng in eiss witched offR
th ed river is no tw earing as eat belt and th e
driver's door is opened R
there is as ystem malfunctionR
th ep owe rs upply is insufficien tR
th ev ehicl eiss ta tionary for al engthy period
The red I (US Ao nl y) or $ (Canada only)
indicator lamp in th ei nstrumen tc luste rl ights
up.
The electric parking brak eisn ot automatically
engage dift he engin eiss witched off by th eE CO
start/sto pf unction .
Releasing automatically The electric parking brak eisr elease da utomat -
ically when all of th ef ollowin gc onditi on sa re
fulfilled :R
th ee ng in eisr unning.R
th et ra nsmission is in position D or R .R
th ed river's seat belt is fastened.R
you depress th ea ccelerato rp edal .
If th et ra nsmission is in position R ,t he trunk lid
mus tbec losed.
If your seat belt is no tf astened, th ef ollowin g
condition sm us tbef ulfilled to automatically
release th ee lectric parking brake:R
th ed river's door is closed.R
you hav es hifte do ut of P or you hav ep revi-
ously driven faste rt ha n2m ph (3 km/ h). Ensure tha ty ou do not depress the accelerator
peda lu nintentionally. Otherwis et he parking
brake will be released and the vehicl ew il ls tart
to move.
Emergenc yb rakingThe vehicl ec an also be braked durin gane mer-
gency by using the electri cp ar kin gb rake.X
Whil ed riving, push handle C of the electric
parkin gb rake.
The vehicl eisb raked for as long as the handle
of the electri cp ar kin gb rake is pressed. The
longe rt he electri cp ar kin gb rake handl ei s
depressed, the greate rt he braking force.
During braking: R
aw ar ning tone sounds R
the Releas eP arkin gB rake message
appears R
the red I (USA only) or $ (Canada
only) indicator lamp in the instrument cluster
flashes
When the vehicl eh as been braked to as tand-
still ,t he electri cp ar kin gb rake is engaged.
Parking the vehicle fo ral on gp eriodIf yo ul eave the vehicl ep ar ked for longe rt han
fou rw ee ks ,t he battery ma ybed amaged by
exhaustive discharging.
If yo ul eave the vehicl ep ar ked for longe rt ha ns ix
weeks ,t he vehicl em ay suffe rd amag easa
resul tofl ac kofu se . X
Visi taq uali fied specialis tw or kshop and seek
advice.
i Yo uc an obtai ni nformatio na bout trickle
chargers fro maq uali fied specialis tw or k-
shop.
Driving tips
General notes
Important safety notes
G WARNING
If yo us wi tch off the ignition whil ed riving,
safety-relevant functions ar eo nl ya vailable
with limitations, or not at all. Thi sc ould affect,Driving tips 133
Driving an dp arking Z