2017 MERCEDES-BENZ SLC key

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

X
If possible, bring the front wheel si nto the
straight-ahea dp osition.X
Switch off the engine. X
Vehicles without KEYLESS-GO: remove the
SmartKey from the ignition lock. X
Vehicles with KEYLESS-GO: open the driv-
er's door.
The on-board electronics now have status 0 .
This is the same as the SmartKey having been
removed. X
Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
( Y
page 115).X
Make sure that the passengers are not endan-
gered as they do so. Make sure that no one is
near the danger area whil eaw heel is being
changed. Anyone who is not directly assisting
in the wheel change should, for example,
stand behind the barrier. X
Get out of the vehicle .P ay attention to traffic
conditions when doing so. X
Clos et he driver's door.
MOExtended tires (tires with run-flat
properties)
General notes With MOExtended tires (tires with run flat char-
acteristics), you can continue to drive you rv ehi-
cle even if there is at otal loss of pressure in one
or more tires. The affected tire must not show
any clearl yv isible damage.
You can recognize MOExtended tires by the
MOExtended marking which appears on the
sidewall of the tire. You wil lf ind this marking
next to the tire size designation, the load-bear-
ing capacity and the speed index ( Y
page 269).
MOExtended tires may only be used in conjunc-
tion with an active tire pressure loss warning
system or with an active tire pressure monitor.
If ap ressure loss warning message appears
in the multifunction display: R
observe the instructions in the display mes-
sages ( Y
page 196).R
check the tire for damage. R
if driving on, observe the following notes.
The driving distance possible in run-flat mode is
approximately 50 miles (80 km) when the vehi-
cle is partially laden and approximately 19 miles
(30 km) when the vehicle is full yl aden. In addition to the vehicle load ,t he driving dis-
tance possible depends upon: R
vehicle speed R
road condition R
outsid et emperature
The driving distance possible in run-flat mode
may be reduced by extreme driving conditions
or maneuvers, or it can be increased through a
moderate style of driving.
The driving distance possible in run-flat mode is
counted from the moment the tire pressure loss
warning appears in the multifunction display.
You must not exceed am aximum speed of
50 mph (80 km/h).
When replacing one or all tires, please observe
the following specifications for you rv ehicle's
tires: R
size R
type and R
the "MOExtended" mark
If at ire has gone flat and cannot be replaced
with aM OExtended tire, as tandard tire may be
used as at emporary measure. Make sure that
you use the proper size and type (summe ro r
winter tire).
Vehicle se quipped with MOExtended tires are
not equipped with aT IREFIT kit at the factory. It
is therefore recommended that you additionally
equi py ou rv ehicle with aT IREFIT kit if y ou mount
tires
that do not feature run-flat properties, e.g.
winter tires. AT IREFIT kit is available, for exam-
ple, from aq ualifie ds pecialist workshop.
Important safety notes
G WARNING
When driving in emergency mode, the driving
characteristics deteriorate, e.g. when corner-
ing, accelerating quickly and when braking.
There is ar isk of an accident.
Do not exceed the stated maximum speed.
Avoid abrupt steering and driving maneuvers,
and driving over obstacle s( curbs, potholes,
off-road). This applies in particular to al aden
vehicle.
Stop driving in emergency mode if: R
you hear banging noises. R
the vehicle starts to shake.242
Flat tire
Breakdow na ssistance

Do not start the vehicl eu si ng ar apid charging device. If your vehicle's battery is discharged, the
engine can be jump-started fro ma nothe rv ehicl eorf ro mas econd battery using jumpe rc ables.
Observe the following points: R
The battery is not accessible in al lv ehicles. If the othe rv ehicle's battery is not accessible ,j ump-
start the vehicl eu si ng as econd battery or aj ump-starting device.R
Yo um ay onl yj ump-star tt he vehicl ew he nt he engine and exhaust system ar ec old.R
Do not start the engine if the battery is frozen. Let the battery tha wf irst.R
Onl yj ump-star tf ro mb at teries with a12Vv oltag er at ing.R
Onl yu se jumpe rc able sw hi ch have as uf ficient cross-sectio na nd insulate dt ermina lc lamps.R
If the battery is full yd is charged, leav et he battery tha ti sb ei ng used to jump-star tc onnected for
af ew minute sb ef or ea ttempting to start. Thi sc harge st he battery slightly.R
Make sure tha tt he two vehicles do not touch.
Make sure that: R
The jumpe rc able sa re not damaged.R
Bar ep ar ts of the termina lc lamp do not come into contact with othe rm eta lp ar ts whil et he jumper
cable sa re connected to the battery.R
The jumpe rc able sc anno tc ome into contact with parts which can mov ew he n t he engine is
running ,s uc hast he V-bel tp ulle yort he fan.X
Secure the vehicl ebya pplyin gt he electri cp ar kin gb rake.X
Shift the transmission to position P .X
Make sure tha tt he ignition is switched off .A ll indicator lamps in the instrument cluster must be
off .W he nu si ng the SmartKey, tur nt he SmartKe ytop osit ion 0 in the ignition lock and remove it
( Y
page 115).X
Switch off al le le ctrical consumers ,e .g .r ea rw in do wd ef roster ,l ig hting, etc.X
Open the hood.
Positio nn umber

wise be locked out when pushin gort owing the
vehicle.
Installing/removing th et owing eye
Installing th et owing eye
G WARNING
The exhaust tail pipe may be ver yh ot .T her ei s
ar isk of burn sw hen removin gt he rear cover.
Do not touc ht he exhaust pipe. Take particular
car ew hen removin gt he rear cover.
The bracket sf or th es crew-in towing eye are
located in th eb umpers. They are at th ef ront and
at th er ear ,b ehin dt he covers.X
Remov et he towing eye fro mt he vehicle tool
kit ( Y
page 241).X
Pres st he mark on cover C inwards in the
directio noft he arrow.X
Take cover C off th eo pening.X
Screw in th et owing eye clockwis easf ar as it
will go and tighten it.
Removing th et owing eyeX
Unscrew and remove th et owing eye.X
Attac hc over C to th eb umper and pres su ntil
it engages. X
Place th et owing eye in th ev ehicle too lk it. Towing av ehicle with both axles on
th eg round
G WARNING
You can no longer steer th ev ehicle if the
steerin gw heel lock has been engaged. There
is ar isk of an accident.
Always switch off th ei gnitio nw hen towing the
vehicle with at ow cable or at ow bar.
The automatic transmission automatically shifts
to position P when you open th ed river's or front-
passenger door or when you remove th eS ma rt-
Key fro mt he ignitio nl ock.
In orde rtoe nsure that th ea utomatic transmis-
sion stays in position N when towing th ev ehicle,
you must observe th ef ollowing points:X
Switch on th eh azar dw arning lamps
( Y
page 95). X
Turn th eS ma rtKey to position 2 in th ei gnition
lock.
On vehicles with KEYLESS-GO, use th eS ma rt-
Key instead of th eS ta rt/Stop button
( Y
page 115). X
Depress and hold th eb rak ep edal.X
Shif tt he transmission to position N .X
Release th eb rak ep edal.X
Release th ee lectric parking brake. X
Leave th eS ma rtKey in position 2 in th ei gni-
tio nl ock.
In orde rtos ignal ac hange of directio nw hen
towing th ev ehicle with th eh azar dw arning
lamps switche do n, use th ec ombination switch
as usual. In this case ,o nly th ei ndicator lamps
for th ed irectio noft ra vel flash .W hen you reset
th ec ombination switch, th eh azar dw arning
flashers start flashing again.
It is importan tt ha ty ou observe th es afety
instructions when towing away your vehicle
( Y
page 251).
Towing th ev ehicle with th er ea ra xle
raised
! The ignitio nm ust be switche do ff if you are
towing th ev ehicle with th er ear axle raised.
Interventio nbyE SP ®
could otherwise dam-
age th eb rak es ystem.252
Towing and tow-starting
Breakdown assistance

! Vehicles with automatic transmission must
not be towed with the rear axle raised. The
vehicle/trailer combination may otherwise
swerve or even roll over.
Transporting the vehicle
Vehicle sw ith automatic transmission
! When the vehicle is loade df or transport, the
front and rear axles must be stationary and on
the same transportation vehicle. Positioning
over the connection point of the transport
vehicle is not permitted. The drive train may
otherwise be damaged.
All vehicles
! You may only secure the vehicle by the
wheels, not by parts of the vehicle such as
axle or steering components. Otherwise, the
vehicle could be damaged.
The towing eye can be used to pull the vehicle
onto at railer or transporter for transporting pur-
poses. X
Turn the SmartKey to position 2 in the ignition
lock. X
Shift the transmission to position N .
As soon as the vehicl eh as been loaded:X
Prevent the vehicle from rolling awa yb y
applying the electric parking brake. X
Shift the transmission to position P .X
Turn the SmartKey in the ignition lock to posi-
tion 0 and remove the SmartKey from the
ignition lock. X
Secure the vehicle. Tow-starting (emergenc ye ngine
starting)
! Vehicles with automatic transmission must
not be tow-started. You could otherwise dam-
age the automatic transmission.
You can find information on "Jump-starting" at
( Y
page 249).
Fuses
Important safety notes
G WARNING
If you manipulate or bridge af aulty fuse or if
you replace it with af use with ah igher amper-
age, the electric cables could be overloaded.
This could result in af ire. There is ar isk of an
accident and injury.
Alway sr eplace faulty fuses with the specified
new fuses having the correct amperage.
Blown fuses must be replaced with fuses of the
same rating, which you can recognize by the
color and value .T he fuse ratings are listed in the
fuse allocation chart.
The fuse allocation chart is located in the vehicle
tool kit in the stowage compartment under the
trunk floor ( Y
page 241).
If an ewly inserted fuse also blows, have the
cause traced and rectified at aq ualified special-
ist workshop, e.g. an authorized Mercedes-Benz
Center.
! Only use fuses that have been approved for
Mercedes-Benz vehicles and which have the
correct fuse rating for the system concerned.
Otherwise, component sors ystems could be
damaged.
! Make sure that no moisture can enter the
fuse box when the cover is open.
! When closing the cover, make sure that it is
lying correctly on the fuse box. Moisture seep-
ing in or dirt could otherwise impair the oper-
ation of the fuses.
The fuses in your vehicle serve to close down
faulty circuits. If af use blows, all the compo-
nent sont he circuit and their functions stop
operating. Fuses 253
Breakdown assistance Z

Before changin gaf useX
Switch off the engine. X
Switch off al le le ctrical consumers.X
Make sure tha tt he ignition is switched off
( Y
page 115).
or X
Whe nu si ng the SmartKey, turn the SmartKey
to position 0 in the ignition lock and remove it
( Y
page 115).X
Secure the vehicl ea gain st rolling away
( Y
page 131).
All indicator lamps in the instrument cluster
must be off.
The fuses are locate dinv arious fus eb ox es:R
Fus eb ox in the engine compartment on the
left-hand side of the vehicle, when viewe di n
the direction of travel R
Fus eb ox in the trunk
Fuse bo xint he engine compartment
i Observ et he "Important safety notes "s ec-
tio n( Y
page 253).
G WARNING
Whe nt he hoo diso pe na nd the windshield
wipers are set in motion, yo uc an be injured by
the wipe rl in kage. There is ar is kofi njury.
Alway ss wi tch off the windshield wipers and
the ignition before opening the hood.
X
Make sure tha tt he windshield wipers are
turne do ff.X
Ope nt he hood.X
Use ad ry cloth to remove any moisture from
the fus eb ox . X
To open: open clamps D .X
Remove fus eb ox cover C forwards.X
To close: check whethe rt he sea lisl yi ng cor-
rectl yinc over C .X
Insert cover C at the rea roft he fus eb ox into
the retainer. X
Fol dd ow nc over C and close clamps D .X
Close the hood.
Fuse bo xint he trunk
i Observ et he "Important safety notes "s ec-
tio n( Y
page 253).
The fus eb ox is locate dint he trunk behind the
partition covering. X
Ope nt he trunk lid. X
To open: release cover C on the right and
left-hand side sw it haf la to bj ect.X
Ope nc over C downward sint he direction of
the arrow.254
Fuses
Breakdo wn assis tance

same time cannot be detected by the tire pres-
sure loss warning system.
The tire pressure monitor is not able to warn you
of as udden loss of pressure, e.g. if the tire is
penetrated by af oreign object. In the event of a
sudden loss of pressure, bring the vehicle to a
halt by braking carefully .A void abrupt steering
movements.
The function of the tire pressure loss warning
system is limited or delayed if: R
snow chains are mounted on your vehicle's
tires. R
road conditions are wintry. R
you are driving on sand or gravel. R
you adopt av ery sporty driving style (corner-
ing at high speeds or driving with high rates of
acceleration). R
you drive with ah eavy load.
Restarting the tire pressure loss warn-
ing system Restart the tire pressure loss warning system if
you have: R
changed the tire pressure R
changed the wheels or tires R
mounted new wheels or tires X
Before restarting, make sure that the tire
pressures are set properly on all four tires for
the respective operating conditions.
The recommended tire pressure can be found
on the Tire and Loading Information placard
on the B-pillar. Additionally, at ire pressure
table is attached to the fuel filler flap. The tire
pressure loss warning system can only give
reliable warnings if you have set the correct
tire pressure. If an incorrect tire pressure is
set, these incorrect values will be monitored. X
Also observe the notes in the section on tire
pressures ( Y
page 258).X
Make sure that the SmartKey is in position 2
in the ignition lock ( Y
page 115).X
Press the Y or e button on the steering
wheel to select the Serv. menu.X
Press the c or d button to select
Tire Pressure .X
Press the v button.
The Run Flat Indicator Active Press
'OK' to Restart message appears in the
multifunction display. If you wish to confirm the restart: X
Press the v button.
The Tire Pressure Now OK? message
appears in the multifunction display. X
Press the c or d button to select Yes .X
Press the v button.
The Run Flat Indicator Restarted mes-
sage appears in the multifunction display.
After at each-in period, the tire pressure loss
warning system will monitor the set tire pres-
sures of all four tires.
If you wish to cancel the restart: X
Press the 8 button.
or X
If the Tire Pressure Now OK? message
appears, use the c or d button to
select Cancel . X
Press the v button.
The tire pressure values stored at the last
restart will continue to be monitored.
Tire pressure monitor
General notes If at ire pressure monitor is installed, the vehi-
cle's wheels have sensors that monitor the tire
pressures in all four tires. The tire pressure mon-
itor warns you if the pressure drops in one or
more of the tires. The tire pressure monitor only
functions if the corresponding sensors are
installed in all wheels.
Information on tire pressures is displayed in the
multifunction display. After af ew minutes of
driving, the current tire pressure of each tire is
shown in the Serv. menu of the multifunction
display.
Example: current tire pressure display
For information on the message display, refer to
the "Checking the tire pressure electronically"
section ( Y
page 264).262
Tire pressure
Wheels and tires

In addition to the warning lamp ,am essage
appears in the multifunction display. Observe
the information on display messages
( Y
page 196).
It may take up to ten minutes for am alfunction
of the tire pressure monitor to be indicated .A
malfunction wil lbei ndicated by the tire pres-
sure warning lamp flashing for approximately
one minute and then remaining lit. When the
malfunction has been rectified, the tire pressure
warning lamp goes out after af ew minutes of
driving.
The tire pressure values indicated by the on-
board computer may differ from those meas-
ured at ag as station with ap ressure gauge. The
tire pressures shown by the on-board computer
refer to those measured at sea level .Ath igh
altitudes, the tire pressure values indicated by a
pressure gauge are higher than those shown by
the on-board computer. In this case, do not
reduce the tire pressures.
The operation of the tire pressure monitor can
be affected by interference from radi ot ransmit-
ting equipment (e.g. radi oh eadphones, two-way
radios) that may be being operated in or near the
vehicle.
Checking the tire pressure electroni-
cally X
Make sure that the SmartKey is in position 2
in the ignition lock ( Y
page 115).X
Press the Y or e button on the steering
wheel to select the Serv. menu.X
Press the c or d button to select
Tire Pressure .X
Press the v button.
The current tire pressure of each tire is shown
in the multifunction display.
If the vehicle has been parked for over
20 minutes, the Tire pressure will be
displayed after driving af ew minutes
messag ea ppears.
After at each-in process, the tire pressure mon-
itor automatically detects new wheel sorn ew
sensors. As long as ac lear allocation of the tire
pressure valu etot he individual wheel sisn ot
possible, the Tire Pressure Monitor Active
display messag eiss hown instead of the tire
pressure display. The tire pressures are already
being monitored.
If an emergency spare wheel is mounted, the
system may continue to show the tire pressure of the wheel that has been removed for af ew
minutes. If this occurs, note that the valu ed is-
played for the positio nw here the spare wheel is
mounted is not the same as the current tire
pressure of the emergency spare wheel.
Tire pressure monitor warning mes-
sages If the tire pressure monitor detects ap ressure
loss in one or more tires, aw arning messag ei s
shown in the multifunction display. The yellow
tire pressure warning lamp then lights up. R
If the Please Correct Tire Pressure
messag ea ppears in the multifunction display,
the tire pressure in at least one tire is too low.
The tire pressure must be corrected when the
opportunity arises. R
If the Check Tires messag ea ppears in the
multifunction display, the tire pressure in at
least one tire has droppe ds ignificantly. The
tires must be checked. R
If the Warning Tire Malfunction message
appears in the multifunction display, the tire
pressure in at least one tire has droppe ds ud-
denly .T he tires must be checked.
Observe the instructions and safety notes in the
display messages in the "Tires" section
( Y
page 196).
If the wheel positions on the vehicle are rotated,
the tire pressures may be displaye df or the
wrong positions for as hort time. This is rectified
after af ew minutes of driving, and the tire pres-
sures are displaye df or the correct positions.
Restarting the tire pressure monitor When you restart the tire pressure monitor, all
existing warning messages are deleted and the
warning lamp sgoo ut. The monitor uses the cur-
rently set tire pressures as the reference values
for monitoring. In most cases, the tire pressure
monitor wil la utomatically detect the new refer-
ence values after you have changed the tire
pressure. However, you can also define refer-
ence values manually as describe dh ere. The tire
pressure monitor then monitors the new tire
pressure values. X
Set the tire pressure to the valu er ecommen-
ded for the corresponding driving situation on
the Tire and Loading Information placard on
the driver's side B-pilla r( Y
page 258).264
Tire pressure
Wheel sa nd tires