keyless MERCEDES-BENZ SLC 2017 User Guide

Opening/closing from outside
Opening X
Press the 6 button on the SmartKey.X
Pull handle C .X
Raise the trun kl id.
Closing
X
Pull the trun kl id down using recess C .X
Lock the vehicle if necessary using the 7
button on the key or with KEYLESS-GO.
If KEYLESS-GO detects aS martKey in the trunk,
it does not lock.
Locking the trunk separately You can lock the trun ks eparately. If you then
unlock the vehicle centrally, the trun kr emains
locked and cannot be opened. X
Close the trun kl id.X
Take the mechanical key out of the SmartKey
( Y
page 65). X
Inser tt he mechanical key into the trun kl id
lock as far as it will go. X
Turn the mechanical key clockwise from posi-
tion G to position H .X
Remove the mechanical key. X
Inser tt he mechanical key into the SmartKey.
Unlocking the trunk (mechanical key)
! The trun kl id swings upwards when opened.
Therefore, make sure that there is sufficient
clearanc ea bove the trun kl id.
If the trun kc annot be unlocked with the Smart-
Key or KEYLESS-GO, use the mechanical key.
If you use the mechanical key to unlock and
open the trun kl id, the anti-thef ta larm system
will be triggered. Switc ho ff the alarm
( Y
page 61). X
Take the mechanical key out of the SmartKey
( Y
page 65). X
Inser tt he mechanical key into the trun kl id
lock as far as it will go.
X
Turn the mechanical key from position G
counter-clockwise as far as it will go to posi- Trunk 71
Opening and closing Z

Convenience closing with KEYLESS-GO
G WARNING
When usin gt he convenience closin gf eature,
part soft he body coul dbet ra pped in th ec los-
ing area when as ide window is bein gc losed.
Ther eisar is kofi njury.
Observ et he complet ec losin gp rocedure
when th ec onvenience closin gf eature is oper-
ating. Mak es ure that no body part sa re in
close proximity durin gt he closin gp rocedure.
Procee dasf ollows if someon eist ra pped:X
Release th er ecessed sensor surface on the
door handle. X
Immediately pull and hold th ed oor handle
and keep th ed oor handle pulled.
The side windows open.
Wit hK EY LESS-GO you can close all side win-
dows simultaneously. The KEYLESS-GO key
must be outside th ev ehicle .A ll th ed oor sm ust
be closed.
X
Touc hr ecessed sensor surface C on the
door handle until th es ide windows are fully
closed.
i Mak es ure you only touch recessed sensor
surface C .X
To interrup tc onvenience closing: release
recessed sensor surface C on th ed oor han-
dle.
Resetting th es id ew indows
If as ide window can no longer be closed fully,
you must reset it. X
Close all th ed oors. X
Turn th eS ma rtKey to position 1 or 2 in the
ignition lock. X
Pull th ec orrespondin gs witch on th ed oor
control panel until th es ide window is com-
pletely closed ( Y
page 73).X
Hol dt he switch for an additional second.
If th es ide window open sa gain slightly:X
Immediately pull th ec orrespondin gs witch on
th ed oor control panel until th es ide window is
completely closed ( Y
page 73).X
Hol dt he switch for an additional second.
If th er espectiv es ide window remains closed
after th eb utto nisr eleased, then it has been
set correctly. If this is no tt he case, repeat the
steps above.74
Sid ew indows
Opening and closing

Opening/closing using the SmartKey
Important safet yn otes
G WARNING
When opening or closing the roof, body parts
could be trapped by, for example, the roof
mechanism, trun kl id or side windows. There
is ar isk of injury.
When raising or lowering the roof, make sure
that no body parts are in the vicinity of moving
components. If someon eb ecomes trapped,
release the button.
Opening and closing This function is only available on vehicles with
KEYLESS-GO or with roof comfort operation. X
Close the trun kl id ( Y
page 70).X
Vehicles with comfort operation: point the
tip of the SmartKey at the driver's door han-
dle. X
Vehicles with KEYLESS-GO: the SmartKey
must be within 6ft(2m )o ft he vehicle.X
To open: press and hold the 6 button on
the SmartKey until the roof is fully opened.
The roof and the rear side windows open. The
fron ts ide windows close.X
To interrupt the opening procedure:
release the 6 button.X
To open the front side windows: press the
6 button on the SmartKey again.X
To close: press and hold the 7 button on
the SmartKey until the roof is fully closed.
The roof and the side windows close. X
To interrupt the closing procedure: release
the 7 button.
Locking the roof again
Important safet yn otes
G WARNING
If you do not fully open/close the soft top, the
soft-top hydraulics depressuriz ea fter as hort
time. This causes the soft top to lower unex-
pectedly and may cause you or other stob e
trapped. There is ar isk of injury. Always open or close the soft top completely.
The roof is not locked if: R
the Y symbol and the Vario-Roof in
Operation message appear in the multifunc-
tion display R
the Y symbol and the Open/Close
Vario-Roof Completely message appear in
the multifunction display and you hear aw arn-
ing tone R
you hear aw arning ton ef or up to ten seconds
when pulling away or while driving
Locking You can lock the roof again if it is not locked
fully. X
Pull over and stop the vehicle safely as soon
as possible, paying attention to road and traf-
fic conditions. X
Make sure that the SmartKey is in position 2
in the ignition lock. X
Press the roof switch ( Y
page 76).
Trunk partition
General notes
! To avoid damaging the roof or luggage when
folding back the roof, you should: R
only load the trun ktob elow the trun kp ar-
tition R
not place any objects on or in fron toft he
trun kp artition R
not place any objects on the cover behind
the roll bars R
not allow the cargo to push the trun kp ar-
tition upwards
The trun kp artition can be used to cover luggage
and loads in the trunk. Roof 77
Opening and closing Z

Position of the steering wheel when the
EASY-ENTRY/EXIT featur eisa ctiveThe steering wheel swings upwards when you: R
remove the SmartKey from the ignition lock R
open the driver's door with KEYLESS-GO in
position 1R
open the driver's door and the SmartKey is in
position 0 or 1 in the ignition lock
i The steering wheel only moves upwards if it
has not already reached the upper end stop.
Position of the steering wheel for driv-
ing The steering wheel is moved to the last selected
position when: R
the driver's door is closed R
you insert the SmartKey into the ignition lock
or R
you press the Start/Stop button once on vehi-
cles with KEYLESS-GO
When you close the driver's door with the igni-
tion switched on, the steering wheel is also
automatically moved to the previously set posi-
tion.
The last position of the steering wheel is stored
when you switch off the ignition or when you
store the settin gw ith the memory function
( Y
page 91).
Crash-responsive EASY-EXIT feature If the crash-responsive EASY-EXIT feature is trig-
gered in an accident, the steering column will
move upwards when the driver's door is opened.
This occurs irrespective of the position of the
SmartKey in the ignition lock. This makes it eas-
ier to exit the vehicle and rescue the occupants.
The crash-responsive EASY-EXIT feature is only
operational if the EASY-EXIT/ENTRY feature is
activated in the on-board computer
( Y
page 174). Mirrors
Rear-view mirror X
Anti-glare mode: flick anti-glare lever C for-
wards or back.
Exterior mirrors
Adjusting the exterior mirrors
G WARNING
You could lose control of your vehicle if you do
the following while driving: R
adjust the driver's seat, head restraint,
steering wheel or mirrors R
fasten the seat belt
There is ar isk of an accident.
Adjust the driver's seat, head restraint ,s teer-
ing wheel and mirror and fasten your seat belt
before startin gt he engine.
G WARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
object sa re actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is ar isk of an acci-
dent.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder.88
Mirrors
Seats, steering whee la nd mirrors

Where possible, avoid spinnin gt he drive
wheels when pulling away on slippery roads.
You could otherwise damage the drive train.
SmartKey positions
SmartKey
Z
To remove the SmartKeyG
Power supply for some consumers, such as
the windshield wipersH
Ignition (power supply for all consumers)
and drive positionI
To start the engine
i The SmartKey can be turned in the ignition
lock even if it is not the correct SmartKey for
the vehicle. The ignition is not switched on.
The engine cannot be started.
KEYLESS-GO
General notes Vehicles with KEYLESS-GO are equipped with a
SmartKey featuring an integrated KEYLESS-GO
start function and ad etachable Start/Stop but-
ton.
The Start/Stop button must be inserted in the
ignition lock and the SmartKey must be in the
vehicle.
When you insert the Start/Stop button into the
ignition lock, the system needs approximately
two seconds recognition time. You can then use
the Start/Stop button.
Pressing the Start/Stop button several times in
succession corresponds to the differen tk ey
positions in the ignition lock. This is only the
case if you are not depressing the brake pedal. If you depress the brake pedal and press the
Start/Stop button ,t he engine start si mmedi-
ately.
Ac heck which periodically establishes ar adio
connection between the vehicle and the Smart-
Key determines whether av alid SmartKey is in
the vehicle. This occurs ,f or example, when
starting the engine.
To start the vehicle without actively using the
SmartKey: R
the Start/Stop button must be inserted in the
ignition lock. R
the SmartKey must be in the vehicle. R
the vehicle must not be locked with the
SmartKey or KEYLESS-GO ( Y
page 63).
Do not keep the SmartKey: R
with electronic devices, e.g. am obile phone
or another SmartKey. R
with metallic objects, e.g. coins or metal foil. R
inside metallic objects, e.g. am etal case.
This can impair the functionality of the KEY-
LESS-GO key.
If you lock the vehicle with the SmartKey's
remot ec ontrol or with KEYLESS-GO, after a
short time: R
you will not be able to switch on the ignition
with the Start/Stop button. R
you will not be able to start the engine with the
Start/Stop button until the vehicle is
unlocked again.
The engine can be switched off while the vehicle
is in motion by pressing and holding the Start/
Stop button for three seconds. This function
operates independently of the ECO start/stop
automatic engine switch-off function.
Key positions with KEYLESS-GO
C
Start/Stop button
D
Ignition lock Driving 115
Driving and parking Z

reach its operating temperature. The sound of
the engine may change during this time.
Automatic transmission X
Depress the brake peda la nd keep it
depressed. X
Shift the transmission to position P .
Transmission position display P is shown in
the multifunction display.
i You can start the engine in transmission
position P and N .
Starting procedure with the SmartKey To start the engine using the SmartKey instead
of KEYLESS-GO, pul lt he Start/Stop button out
of the ignitio nl ock.X
Turn the SmartKey to position 3 in the ignition
lock ( Y
pag e1 15) and release it as soon as the
engine is running.
Usin gK EYLE SS-GO to start the engineThe Start/Stop button can be used to start the
vehicl em anually withou ti nserting the SmartKey
into the ignitio nl ock. The Start/Stop button
must be inserted in the ignitio nl ock and the
SmartKey must be in the vehicle. This mode for
starting the engine operates independently of
the ECO start/stop automatic engine start func-
tion. X
Depress the brake peda la nd keep it
depressed. X
Press the Start/Stop button once
( Y
pag e1 15).
The engine starts.
Pulling away
General notes
G WARNING
If the engine spee disa bove the idling speed
and you engage transmission position D or R ,
the vehicl ec ould pul la wa ys uddenly .T here is
ar isk of an accident.
When engaging transmission position D or R ,
alway sf irmly depress the brake peda la nd do
not simultaneously accelerate. ! Change gea ring ood time and avoi ds pin-
ning the wheels. You could otherwise damage
the vehicle.
Depress the accelerator carefully when pulling
away.
The vehicl el ocks centrally once you have pulled
away. The locking knobs in the doors drop down.
You can open the doors from the insid eata ny
time.
You can als od eactivate the automatic locking
feature ( Y
pag e1 73).
It is only possible to shift the transmission from
position P to the desired position if you depress
the brake pedal. Only then is the shift lock
released.
i Upshifts take place at highe re ngine speeds
after ac old start. This help st he catalytic con-
verter to reach its operating temperature
more quickly.
Information on the automatic release of the
electric parking brake ( Y
pag e1 33).
Hill start assist Hill start assist help sy ou when pulling awa yf or-
ward sorinr everse on an uphill gradient. It holds
the vehicl ef or as hort time after you have
removed you rf oot from the brake pedal. This
gives you enoug ht ime to move you rf oot from
the brake peda ltot he accelerator peda la nd to
depress it before the vehicl eb egins to roll.
G WARNING
After as hort time, hill start assist wil lnol on-
ger brake you rv ehicl ea nd it could roll away.
There is ar isk of an accident and injury.
Therefore, quickly move you rf oot from the
brake peda ltot he accelerator pedal. Never
leave the vehicl ew hen it is held by hill start
assist.
Hill start assist is not active if: R
you are pulling awa yonal evel road or on a
downhill gradient. R
the transmission is in position N .R
the electric parking brake is applied. R
ESP ®
is malfunctioning. Driving 117
Driving and parking Z

The current transmission position and drive pro-
gram appear in the multifunction display.
Engaging par kp osition PX
When the vehicle is stationary, depress the
brake pedal. X
Press button C .
Engaging par kp osition Pa utomaticallyPark position P is automatically engaged if:R
you switch off the engine using the SmartKey
and remove the SmartKey R
you switch off the engine using the SmartKey
or using the Start/Stop button and open the
driver's door or front-passenger door R
the driver's door is opened when the vehicle is
stationary or driving at very low speed and the
transmission is in position D or R
Under certain conditions, the automatic trans-
mission shifts automatically to transmission
position P if the HOLD function or Distance Pilot
DISTRONIC is activated. Observe the informa-
tion on the HOLD function ( Y
page 148) and on
Distance Pilot DISTRONIC ( Y
page 144).
Engaging reverse gear R
! Only shift the automatic transmission to R
when the vehicle is stationary. X
Depress the brake and keep it pressed. X
Push the selector lever forwards past the first
point of resistance.
The ECO start/sto pf unction is not available
when reverse gear is engaged. Further informa-
tion on the ECO start/sto pf unction
( Y
page 118). Shifting to neutral N
G WARNING
If children are left unsupervised in the vehicle,
they could: R
open the doors, thus endangerin go ther
people or road users. R
get out and disrupt traffic. R
operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they: R
release the parking brake. R
shiftin gt he automatic transmission out of
park position P R
Start the engine.
There is ar isk of an accident and injury.
When leaving the vehicle, alway st ake 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. X
When the vehicle is stationary, depress the
brake pedal. X
Push the selector lever forwards or back to
the first point of resistance.
If you switch the engine off with the transmis-
sion in position R or D ,t he automatic transmis-
sion shifts to N automatically.
With the SmartKey: if you then open the driv-
er's door or the front-passenger door or remove
the SmartKey from the ignition, the automatic
transmission shifts to P automatically.
With KEYLESS-GO: if you then open the driver's
or front-passenger door, the automatic trans-
mission shifts to P .
If you want the automatic transmission to
remain in neutral N ,e .g. when having the vehicle
cleaned in an automatic car wash with at owing
system: X
Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock. X
Insert the SmartKey into the ignition lock. X
All vehicles: switch the ignition on. X
Depress the brake pedal and keep it
depressed. X
Shift to neutral N .Automatic transmission 123
Driving and parking Z

! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use af ilter when adding fuel from af uel can.
The fuel lines and/or the fuel injection system
could otherwise be blocked by particles from
the fuel can.
If you overfill the fuel tank, fuel could spray out
when the fuel pump nozzle is removed.
For further information on fuel and fuel quality
( Y
page 285).
Refueling
General information The fuel filler flap is unlocked or locked auto-
matically when you unlock or lock the vehicle
with the key or using KEYLESS-GO.
The position of the fuel filler cap is displayed

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

X
Park the vehicle on al evel surface.
Only check the coolant level when the vehicle
is on al evel surface and the engine has cooled
down. X
Turn the SmartKey to position 2 in the ignition
lock ( Y
page 115).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice ( Y
page 115).X
Check the coolant temperature gauge in the
multifunction display.
The coolant temperature must be below
158 ‡( 70 †).X
Turn the SmartKey to position 0 ( Y
page 115)
in the ignition lock. X
Slowly turn cap D half at urn counter-clock-
wise to allow excess pressure to escape. X
Turn cap D further counter-clockwise and
remove it.
If the coolant is at the level of marker bar