keyless MERCEDES-BENZ SL CLASS 2018 User Guide

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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 67). 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 64). X
Take the mechanical key out of the SmartKey
( Y
page 67). 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 73
Opening and closing Z

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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 indowsIf 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 G or H 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 75).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 75).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.
Problem sw ith th es id ew indows
G WARNING
If you close as ide window again immediately after it has been blocke dorr eset ,t he side window
closes wit hi ncreased or maximum force. The reversing feature is then no ta ctive. Part soft he
body coul dbet ra pped in th ec losin ga rea in th ep rocess. This pose sani ncreased ris kofi njury or
eve nf atal injury.
Mak es ure that no part soft he body are in th ec losin ga rea. To stop th ec losin gp rocess, release
th es witch or push th es witch again to reopen th es ide window.76
Sid ew indows
Opening and closing

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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 72).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
Ensure that the SmartKey is in position H in
the ignition lock. X
Press the roof switch ( Y
page 78).
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 79
Opening and closing Z

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If somebod yb ecomes trapped:R
press one of the memory function position
buttons, or R
press one of the memory function memory
buttons, or R
move the switch for steering wheel adjust-
ment in the opposite direction to that in
which the steering wheel is moving
The adjustment process is stopped.
G WARNING
If you use openings in the bodywork or
detachable parts as steps, you could: R
slip and/or fall R
damage the vehicle and cause yourself to
fall.
There is ar isk of injury.
Alway su se secure climbing aids, e.g. as uita-
ble ladder.
The EASY-ENTRY/EXIT feature makes getting in
and out of you rv ehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board computer
( Y
page 174).
Position of the steering whee lw hen the
EASY-ENTRY/EXIT feature is active The steering wheel swings up 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

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Where possible, avoid spinnin gt he drive
wheels when pulling away on slippery roads.
You could otherwise damage the drive train.
Key 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 65).
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 lock116
Driving
Driving and parking

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i You can star tt he engin eint ra nsmission
position ] and \\ .
Starting procedur ew ith th eS martKeyTo star tt he engin eu sing the SmartKey instead
of KEYLESS-GO, pull the Start/Stop button out
of the ignition lock. X
Turn the SmartKey to position I in the igni-
tion lock ( Y
page 116 )a nd release it as soon
as the engin eisr unning.
Using KEYLESS-GO to start th ee ngineThe Start/Stop button can be used to star tt he
vehicle manually without insertin gt he SmartKey
int ot he ignition lock .T he Start/Stop button
must be inserted in the ignition lock and the
SmartKey must be in the vehicle. This mode for
startin gt he engin eo perates independently of
the ECO start/sto pa utomatic engin es tar tf unc-
tion. X
Depress the brak ep edal and keep it
depressed. X
Press the Start/Stop button once
( Y
page 116).
The engin es tarts.
Pulling away
Genera ln otes
G WARNING
If the engin es peed is above the idling speed
and you engage transmission position D or R ,
the vehicle could pull away suddenly. There is
ar isk of an accident.
When engagin gt ra nsmission position D or R ,
always firmly depres st he brak ep edal and do
not simultaneously accelerate.
! Change gear in good tim ea nd avoid spin-
nin gt he wheels. You could otherwise damage
the vehicle.
Depress the accelerator carefully when pulling
away.
The vehicle lock sc entrally onc ey ou have pulled
away. The locking knobs in the doors drop down.
You can open the doors from the inside at any
time. You can also deactivate the automatic locking
feature ( Y
page 173).
It is only possible to shift the transmission from
position ] to the desired position if you
depres st he brak ep edal. Only the nist he shift
lock released.
i Upshifts tak ep lace at higher engin es peeds
afte rac old start. This helps the catalytic con-
verter to reach its operating temperature
more quickly.
Information on the automatic release of the
electric parking brak e( Y
page 133).
Hill start assist Hill star ta ssist helps you when pulling away
forwar dorinr everse on an uphill gradient. It
holds the vehicle for as hor tt im ea fte ry ou have
removed your foot from the brak ep edal. This
gives you enough tim etom ove your foot from
the brak ep edal to the accelerator pedal and to
depres sitb efor et he vehicle begins to roll.
G WARNING
After as hor tt ime, hill star ta ssist will no lon-
ger brak ey our vehicle and it could roll away.
There is ar isk of an accident and injury.
Therefore, quickly move your foot from the
brak ep edal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill star ta ssist is not active if: R
you are pulling away on al evel road or on a
downhill gradient R
the transmission is in position \\R
the electric parking brak eisa ppliedR
ESP ®
is malfunctioning
ECO start/stop function
Introduction
The ECO start/sto pf unction switches the
engin eo ff automatically if the vehicle is stopped
under certain conditions.
The engin es tarts automatically when the driver
want stop ull away again. The ECO start/stop
function thereby helps you to reduce the fuel
consumption and emissions of your vehicle.118
Driving
Driving and parking

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The current transmission position and drive pro-
gram appear in the multifunction display.
Mercedes-AMG SLC 43
C
Transmission positionD
Drive program
The current transmission position and drive pro-
gram appear in the multifunction display.
Engaging par kp osition P
X
When the vehicle is stationary, depress the
brake pedal. X
Press button C .
Engaging par kp osition Pa utomaticallyPark position ] 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
you open the driver's door when the vehicle is
stationary or when driving at av ery low speed
and the transmission is in position [ or ^
Under certain conditions, the automatic trans-
mission shifts automatically to transmission
position ] if the HOLD function or Distance
Pilot DISTRONIC is activated. Observe the infor-
mation on the HOLD function ( Y
page 148) and
on Distance Pilot DISTRONIC ( Y
page 144). Engaging reverse gear R
! Only move the automatic transmission to
^ 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 119).
Shifting to neutral N
G WARNING
If children are left unsupervised in the vehicle,
they could: R
operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they: R
release the parking brake R
shift the automatic transmission out of park
position P R
start the engine
There is ar isk of an accident and injury.
Never leave children or animals unattended in
the vehicle.
When leaving the vehicle, alway st ake the
SmartKey with you and lock the vehicle. This
also applies to mobile phones if the "Digital
Car Key in smartphone" function is activated
via the Mercedes me connect web app. 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 ^ or [ ,t he automatic trans-
mission shifts to \\ 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 ] automatically.
With KEYLESS-GO: if you then open the driver's
or front-passenger door, the automatic trans-
mission shifts to ] automatically.Automatic transmission 123
Driving and parking Z

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If you want the automatic transmission to
remain in neutral \\ ,e .g. when having the vehi-
cle cleaned in an automatic car wash with a
towing 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 peda la nd keep it
depressed. X
Engage neutral \\ .X
Release the brake pedal. X
Release the electric parking brake. X
Switch off the ignition and leave the SmartKey
in the ignition lock.
Engaging drive positio nDX
When the vehicle is stationary ,d epres st he
brake pedal. X
Push the selector lever back past the first
point of resistance. Transmission positions E Park position
This prevents the vehicle from rolling
awa yw hen stopped.
Only shift the transmission into posi-
tion E ( Y
page 122) when the
vehicle is stationary .T he parking lock
shoul dn ot be used as ab rake when
parking. Alway sa ppl yt he electronic
parking brake in addition to the park-
ing lock in order to secure the vehi-
cle.
If the SmartKey is removed from the
ignition lock, the transmission is
locked.
The automatic transmission shifts to
E automatically: R
when the SmartKey is removed
from the ignition lock R
when the engine is switched off
with the transmission in position
F or : and one of the doors
is opened
In the event of am alfunction of the
vehicle's electronics, the transmis-
sion may lock in position E .H ave
the vehicle electronics checked
immediately at aq ualifie ds pecialist
workshop.
F Reverse gear
Only shift the transmission into posi-
tion F when the vehicle is sta-
tionary.124
Automatic transmission
Driving and parking

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! 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 291).
Refueling
General information The fuel filler flap is unlocked or locked auto-
matically when you unlock or lock the vehicle
with the SmartKey or using KEYLESS-GO.
The position of the fuel filler cap is displayed

Page 238 of 298

Workin gint he engine compartment poses a
risk of injury.
Where possible, let the engine cool down and
touch only the component sd escribed in the
following.
G WARNING
The cooling system is pressurized, particularly
when the motor is warm. If you open the cap,
you could be scalded if hot coolant sprays out.
There is ar isk of injury.
Let the engine cool down before you open the
cap. Wear gloves and eye protection. Slowly
open the cap to relieve pressure.
Example 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 H in the igni-
tion lock ( Y
page 116).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice ( Y
page 116).X
Check the coolant temperature gage in the
multifunction display.
The coolant temperature must be below
158 ‡( 70 †).X
Turn the SmartKey to position

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