2018 MERCEDES-BENZ SL CLASS radiator

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

X
Reac hi nt ot he gap, pull hoo dc atch handle D
up and lift hoo d C .
If you lift th eh oo dbya pproximately 15 in
(40 cm), th eh oo diso pened and held open
automatically by th eg as-filled strut .
Closin gt he hoodX
Lowe rt he hoo da nd let it fall from ah eight of
approximately 8in( 20 cm).X
Chec kt ha tt he hoo dh as engage dp roperly.
If th eh oo dc an be raised slightly, it is no t
properly engaged. Open it again and close it
wit hal ittl em or ef orce .
Engine oil
Notes on th eo il levelDependin gony our driving style, th ev ehicl e
consumes up to 0. 9USq t( 0.8 liters )ofo il pe r
60 0m iles (1,000 km). Th eo il cons umption may
be higher than th is when th ev eh icle is ne wori f
you frequently driv eath igh engin es peeds.
Depen din gont he engine, th eo il dipst ick may be
in ad ifferent location.
When checking th eo il leve l:R
park th ev eh icle on al eve ls urfaceR
th ee ng in es hould be swit ched off for appr ox-
imately fiv em in ute sift he engin eisatn orma l
operatin gt em pe ratureR
if th ee ng in eisn ot at normal operatin gt em -
perature, e.g .ift he engin ew as on ly started
brie fly, wait about 30 minute sb efore carrying
out the measurement Checking the oil level using the oil dip-
stick
G WARNING
Certain component sint he engine compart-
ment ,s uch as the engine, radiator and parts
of the exhaust system, can become very hot.
Workin gint he engine compartment poses a
risk of injury.
Only touch the following component sd escri-
bed.
Example X
Pull oil dipstick C out of the dipstick guide
tube. X
Wipe off oil dipstick C .X
Slowly slide oil dipstick C into the guide tube
to the stop, and take it out again.
If the level is between MIN mark

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