engine coolant MERCEDES-BENZ SL CLASS 2018 Owners Manual

SSafety
Children in the vehicle ..................... 53
see Occupant safety
Safety system
see Driving safety systems
SD card
Inserting ....................................... .2 17
Inserting/removing ........................ 217
Removing ....................................... 217
SD memory card
see also Digita lO perator's Man-
ua l. ................................................ .2 11
Selecting ........................................ 169
Searc h&S end
see also Digita lO perator's Man-
ua l. ................................................ .2 11
Seat
Correct driver's sea tp osition ........... 84
Seat belts
Adjusting the driver's and front-
passenger sea tb el t. ........................ 42
Correct usag e. ................................. 41
Fastening ......................................... 42
Important safety guideline s. ............ 40
Introduction ..................................... 39
Releasing ......................................... 42
Switching belt adjustment on/off
(on-board computer) ...................... 174
Warning lamp ................................. 203
Warning lamp (function) ................... 42
Seats
Adjusting (electrically) ..................... 86
Adjusting (manually) ........................ 86
Adjusting the 4-wa yl um ba rs up -
por t. ................................................. 87
Adjusting the hea dr estraint ............ 86
Important safety notes .................... 84
Overview .......................................... 84
Sea th eating problem ...................... 87
Storing settings (memory func-
tion) ................................................. 93
Switching AIRSCAR Fo n/of f. ........... 87
Switching sea th eating on/of f. ........ 87
Selecto rl ever
Positions ........................................ 122
Sensors (cleaning instructions) ....... 242 Servic em en u( on -board com-
puter) .................................................. 171
Servic em essage
see ASSYST PLUS
Servic ep roducts
Brake fluid ..................................... 293
Coolant (engine) ............................ 293
Engine oi l. ...................................... 292
Fue l. ............................................... 291
Important safety notes .................. 290
Refrigerant (air-conditioning sys-
tem) ............................................... 294
Washe rf lui d ................................... 294
Setti
n gt he air distribution ............... 110
Setting the airflow ............................ 110
Setting the date/time format
see also Digital Operator's Man-
ua l. ................................................. 211
Setting the language
see also Digital Operator's Man-
ua l. ................................................. 211
Setting the time
see also Digital Operator's Man-
ua l. ................................................. 211
Settings
Factory (on-board computer) ......... 175
On-board compute r. ...................... 172
SETUP (on-board computer,
Mercedes-AMG vehicles) .................. 175
Side impac ta ir bag ............................. 44
Side marker lamp
Changing bulb s( rear) .................... 101
Side marker lamp (display mes-
sage) ................................................... 189
Side windows
Cleaning ......................................... 241
Convenience closing feature ............ 76
Important safety information ........... 74
Opening/closing (all ). ...................... 75
Opening/closing (front) ................... 75
Overview .......................................... 74
Problem (malfunction) ..................... 76
Resetting ......................................... 76
Reversing feature ............................. 74
SIRIU Ss er vices
see also Digital Operator's Man-
ua l. ................................................. 21116
Index

System .......................................... 224
Vehicl eH ealth Check .................... 227
Telephone
Accepting ac al l( multifunction
steering wheel ). ............................. 170
Authorizing am obil ep hone (con-
necting ). ........................................ 215
Authorizing am obil ep hone via the
device manager (connecting ). ........ 216
Connecting am obil ep hone
(device manager ). .......................... 216
Connecting am obil ep hone (gen-
era li nformation) ............................ 215
Displa ym essage ............................ 200
Menu (on-board computer) ............ 169
Numbe rf rom the phone boo k. ....... 170
Redialing ........................................ 170
Rejecting/ending ac al l. ................ 170
see also Digital Operator's Man-
ua l. ................................................. 211
Temperature
Coolant .......................................... 164
Coolant (on-board computer,
Mercedes-AM GS LC 43) ................ 175
Engine oi l( on -board computer,
Mercedes-AM GS LC 43) ................ 175
Outsid et emperature ...................... 163
Setting (climate control ). ............... 109
Transmission oi l( on -board com-
puter, Mercedes-AM GS LC 43) ...... 175
Timing (RACETIMER) ......................... 175
Tire pressure
Calling up (on-board computer) ..... 267
Checking manually ........................ 266
Displa ym essage ............................ 196
Maximu m. ...................................... 266
Not reached (TIREFIT) .................... 249
Note s. ............................................ 265
Reached (TIREFIT) .......................... 249
Recommended ............................... 263
Tire pressure loss warnin gs ystem
Genera ln otes ................................ 266
Important safety notes .................. 267
Restarting ...................................... 267
Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 269
Function/note s. ............................ 267 Genera ln otes ................................ 267
Important safety notes .................. 268
Radi ot yp ea pp roval for the tire
pressure monitor ........................... 270
Restarting ...................................... 270
Warning lamp ................................. 210
W arni
ng message .......................... 269
Tire-chang et oo lk it ........................... 246
TIREFI Tk it .......................................... 247
Important safety notes .................. 247
Storage location ............................ 246
Tire pressure not reached .............. 249
Tire pressure reached .................... 249
Tires
Aspect rati o( de finition) ................. 279
Average weight of the vehicle
occupants (definition) .................... 278
Bar (definition) ............................... 278
Changing aw heel .......................... 280
Characteristics .............................. 278
Checking ........................................ 260
Curb weight (definition) ................. 279
Definition of terms ......................... 278
Directio nofr otation ...................... 280
Displa ym essage ............................ 196
Distribution of the vehicl eo ccu-
pants (definition) ............................ 280
DOT (Department of Transporta-
tion) (definition) ............................. 278
DOT, Tire Identification Number
(TIN) ............................................... 277
GAW R( Gr os sA xle Weight Rating)
(definition) ..................................... 278
GV W( Gr os sV ehicl eW eight) (def-
inition) ........................................... 279
GVWR (Gros sV ehicl eW eight Rat-
ing )( de finition) .............................. 279
Important safety notes .................. 260
Increased vehicl ew eigh td ue to
optiona le quipment (definition) ...... 278
Information on driving .................... 260
Kilopasca l( kPa )( de finition) ........... 279
Labeling (overview) ........................ 275
Loa db ea ring index (definition) ...... 280
Loa di ndex ..................................... 277
Loa di ndex (definition) ................... 279
M+S tire s. ...................................... 26218
Index

From inside the vehicle (central
unlocking button) ............................. 71
Upshift indicator
(on-board computer, Mercedes-
AMG SLC 43) ................................ .1 75
USB devices
Connecting to the Medi aI nter-
face ............................................... 218
VVehicle
Correct use ...................................... 27
Data acquisition ............................... 28
Display message ............................ 198
Electronics ..................................... 288
Equipment ....................................... 24
Individua ls ettings .......................... 172
Limited Warranty ............................ .2 8
Loading .......................................... 271
Locking (in an emergency) ............... 72
Locking (SmartKey) .......................... 65
Lowering ........................................ 284
Maintenance .................................... 25
Parking for al ong perio d. ............... 133
Pulling awa y. .................................. 118
Raising ........................................... 281
Reporting problems ......................... 27
Securing from rolling away ............ 281
Tow-starting ................................... 256
Towing away .................................. 256
Transporting .................................. 258
Unlocking (i nane mergency) ........... 72
Unlocking (SmartKey ). ..................... 65
Vehicl ed at a. .................................. 295
Vehicl eb attery
see Battery (vehicle)
Vehicl ed ata ....................................... 295
Vehicl ed imensions ........................... 295
Vehicl ee mergenc yl oc king ................ 72
Vehicl ei dentificatio nn umber
see VIN
Vehicl ei dentificatio np late .............. 289
Vehicl et oo lk it .................................. 245
Video
Operating the DVD ......................... 169
see also Digital Operator's Man-
ua l. ................................................. 211 VIN
Sea t. .............................................. 290
Type plate ...................................... 289
W Warning and indicator lamps
ABS ................................................ 204
Active Brake Assist ........................ 209
Brake Assist ................................... 209
Brakes ........................................... 204
Check Engine ................................. 207
Coolant .......................................... 207
Distance Pilo tD ISTRONIC ............. 209
Distance warning ........................... 209
ESP ®
.............................................. 205
ESP ®
OFF ....................................... 206
Fue lt ank ........................................ 207
Genera ln otes ................................ 202
Parking brake ................................ 206
PASSENGER AIR BAG ...................... 39
Reserve fue l. .................................. 207
Restraint system ............................ 206
Sea tb el t. ....................................... 203
SPOR Th an dling mod e. .................. 206
Tire pressure monitor .................... 210
Warning triangle ................................ 244
Warranty .............................................. 24
Washer fluid
Displa ym essage ............................ 201
Weather display (COMAND)
see also Digital Operator's Man-
ua l. ................................................. 211
Wheel and tire combinations
Tires ............................................... 284
Wheel bolt tightenin gt orque ........... 284
Wheel chock ...................................... 281
Wheels
Changing aw heel .......................... 280
Checking ........................................ 260
Cleaning ......................................... 241
Emergency spare whee l. ................ 285
Important safety notes .................. 260
Information on driving .................... 260
Interchanging/changing ................ 280
Mounting an ew whee l. .................. 283
Mounting aw heel .......................... 281
Overview ........................................ 26020
Index

Problem
Possible causes/consequences and P Solutions
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.
The coolant temperature
gauge shows av alue
above 248 ‡( 120 †).
The coolant warning
lamp may also be on and
aw arning tone may
sound. The coolant level is too low. The coolant is too hot and the engine is no
longer being cooled sufficiently. X
Stop as soon as possible and allow the engine and the coolant to
cool down. X
Check the coolant level ( Y
page 235). Observe the warning notes
as you do so and add coolant if necessary.
If the coolant level is correct ,t he engine radiator fan may be faulty. The
coolant is too hot and the engine is no longer being cooled sufficiently. X
At coolant temperatures below 248 ‡( 120 †), drive to the nearest
qualified specialist workshop. X
Avoid heavy loads on the engine as you do so, e.g. driving in moun-
tainou st errai na nd stop-and-go traffic.
DYNAMIC SELEC Tb uttonUse the DYNAMIC SELECT button to change the
drive program. Depending on the drive program
selected the following vehicle characteristics
wil lc hange: R
the drive (engine and transmission manage-
ment) R
the suspensio nort he adaptive adjustable
damping (only on vehicles with AMG RIDE
CONTROL sports suspension) R
the sound of the exhaust system (vehicles
with sports exhaust system) R
the steering R
the availability of the ECO start/stop function
Each time you start the engine with the Smart-
Key or the Start/Stop button, drive program C is
activated. For further information about starting
the engine, see ( Y
pag e1 17). X
Press DYNAMIC SELECT button C as many
times as necessary until the desired drive
progra miss elected.
The selected drive progra ma ppears in the
multifunction display. After as hort period of
time, the displa yg oes out and the symbol for
the selected drive progra ma ppears.
In addition, the current drive progra ms ettings
are displayed briefly in the multimedi as ystem
display.
i In af ew countries, the ECO start/stop func-
tion is deactivated at the factory due to the
available fuel grade. In this case, the ECO
start/stop function is not available in anyDYNAMI CS ELEC Tb utton 121
Driving and parking Z

Coolan tt emperatur eg auge
G WARNING
Opening th eh ood when th ee ng in eiso ver-
heated or when there is af ir eint he engine
compartmen tc oul de xp ose you to hot gases
or other servic ep roducts. Ther eisar is ko f
injury.
Let an overheate de ng in ec oo ld own before
opening th eh ood .Ift he re is af ir eint he
engin ec ompartment, keep th eh ood closed
and contac tt he fir ed epartment.
! Ad isplay message is shown if th ec oolant
temperatur eist oo high.
If th ec oolant temperatur eiso ve r2 48 ‡
(12 0† ), do no tc ontinue driving .T he engine
will otherwise be damaged.
The coolant temperatur eg age is in th ei nstru-
men tc luste ront he right-han ds ide ( Y
page 32).
The H markin gint he coolant temperatur eg auge
corresponds to ac oolant temperatur eo f
approximately 24 8‡ (12 0† ).
Under normal operatin gc ondition sa nd at the
correc tc oolant level, th ec oolant temperature
gauge may ris etot he H marking. Operatin gt he on-boar dc omputer
Overview
C
Multifunction display D
Right control panel

Warning/
indicator
lamp Q Signal type
Possibl ec auses/consequences and P SolutionsX
If the coolant temperature gauge is below the H marking ( Y
pag e1 64) ,d rive on
to the next qualified specialist workshop. X
Avoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-and-go traffic.
Driving systems Warning/
indicator
lamp Q Signal type
Possibl ec auses/consequences and P Solutions

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

Model MB-Freigabe or
MB-Approval
All models
229.5
i MB approval is indicated on the oil contain-
ers.
Fillin gc apacitiesThe following values refer to an oil change
including the oil filter.
Model Capacity
SLC 300
6.7 US qt (6.3 l)
Mercedes-AMG
SLC 43 6.9 US qt (6.5 l)
Ad ditives
! Do not us ea ny additive sint he engine oil.
Thi sc ould damag et he engine.
Brake fluid
G WARNING
The brake fluid constantly absorb sm oisture
from the air. Thi sl owers the boiling point of
the brake fluid .Ift he boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. Thi sw ould impai rb raking efficiency.
There is ar is kofana ccident.
Yo us houl dh av et he brake fluid renewe da t
the specified intervals.
Whe nh an dling brake fluid ,o bserve the impor-
tant safety notes on service products
( Y
page 290).
The brake fluid change interval sc an be found in
the Maintenance Booklet.
Only us eb rake fluid approved by Mercedes-
Benz in accordance with MB-Freigab eorM B-
Approva l3 31.0.
Information abou ta pp roved brake fluid can be
obtaine data ny qualified specialist worksho po r
on the Interne ta t
http://bevo.mercedes-benz.co m. i Have the brake fluid regularly replaced at a
qualified specialist workshop and the replace-
ment confirmed in the Maintenance Booklet.
Coolant
Importan ts afety notes
G WARNING
If antifreeze comes into contact with hot com-
ponents in the engine compartment, it may
ignite. There is ar isk of fire and injury.
Let the engine cool dow nb efore yo ua dd anti-
freeze .M ake sur et hat antifreeze is not spilled
next to the filler neck. Thoroughly clea nt he
antifreeze from components before starting
the engine.
! Only ad dc oolant that has bee np remixed
with the desire da ntifreeze protection. You
coul do therwise damag et he engine.
Furthe ri nformatio nonc oolants can be found
in the Mercedes-Benz Specifications for Ser-
vice Products, MB BeVo 310.1, e.g. on the
Internet at
http://bevo.mercedes-benz.com .Orc on-
tact aq ualifie ds pecialist workshop.
! Always use as uitabl ec oolant mixture, even
in countries where hig ht emperatures prevail.
Otherwise ,t he engine cooling system is not
sufficiently protected from corrosion and
overheating.
i Have the coolant regularly replaced at a
qualified specialist workshop and the replace-
ment confirmed in the Maintenance Booklet.
Comply with the important safety precautions
for service products whe nh andling coolant
( Y
page 290).
The coolant is am ixture of water and anti-
freeze/corrosion inhibitor. It is responsible for
the following: R
anti-corrosion protection R
antifreeze protection R
raising the boiling point
If the coolant has antifreeze protection dow nt o
-35 ‡( -3 7† ), the boiling point of the coolant
during operation is approximatel y2 66 ‡
(130 †).Service products and filling capacities 293
Technical data Z

The antifreeze/corrosion inhibitor concentra-
tion in the engine cooling system should: R
be at least 50%. This will protec tt he engine
cooling system against freezin gd own to
approximately -35 ‡( -37 †).R
not exceed 55% (antifreez ep rotection down
to -49 ‡[ -45 †]). Otherwise, heat will not be
dissipated as effectively
If the vehicle has lost coolant, add equal
amounts of water and antifreeze/corrosion
inhibitor.
Mercedes-Benz recommends an antifreeze/
corrosion inhibitor concentrate in accordance
with MB Specifications for Servic eP roducts
310.1.
i When the vehicle is first delivered, it is filled
with ac oolant mixture that ensures adequate
antifreeze and anti-corrosion protection.
i The coolant is checked with every mainte-
nanc ei nterval at aq ualified specialist work-
shop.
Fillin gc apacitiesMissing values were not availabl eatt ime of
going to print.
Model Capacity
SLC 300
Approx .8 .5 US qt
(8.0 l)
Mercedes ‑ Benz
SLC 43 AMG Approx .8 .2 US qt
(7.8 l)
Windshield washer system
Important safety notes
G WARNING
Windshield washer concentrate could ignite if
it comes into contact with hot engine compo-
nent sort he exhaust system. There is ar isk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
! Only use washer fluid that is suitable for
plastic lamp lenses, e.g. MB SummerFit or MB
WinterFit. Unsuitable washer fluid could dam-
age the plastic lenses of the headlamps. ! Only MB SummerFit and MB WinterFit
washer fluid should be mixed together. The
spray nozzles may otherwise become
blocked.
Do not use distilled or de-ionised water. Other-
wise, the level sensor may give af alse reading.
When handling washer fluid, observe the impor-
tant safety notes on service products
( Y
page 290).
At temperatures above freezing: X
Fill the washer fluid reservoir with am ixture of
water and windshield washer fluid, e.g. MB
SummerFit. X
Add 1p art MB SummerFit to 100 parts water.
At temperatures below freezing: X
Fill the washer fluid reservoir with am ixture of
water and washer fluid, e.g. MB WinterFit.
For the correc tm ixing ratio refer to the infor-
mation on the antifreeze reservoir.
i Add windshield washer fluid, e.g. MB Sum-
merFit or MB WinterFit, to the washer fluid all
year round.
Climate control system refrigerant
Important safety notes The climate control system of your vehicle is fil-
led with refrigerant R ‑ 134a.
The instruction label regarding the refrigerant
type used can be found on the radiator cross
member.
! Only the refrigerant R ‑ 134a and the PAG oil
approved by Mercedes-Benz may be used.
The approved PAG oil may not be mixed with
any other PAG oil that is not approved for
R-134a refrigerant .O therwise, the climate
control system may be damaged.
Servic ew ork, such as refilling with refrigerant or
replacing component parts, may only be carried
out by aq ualified specialist workshop. All appli-
cable regulations, as well as SAE standard J639,
must be adhered to.
Always have work on the climate control system
carried out at aq ualified specialist workshop.294
Service products and filling capacities
Technical data