Example
X
Park the vehicle on a level surface.
Only check the coolant level when the
vehicle is on a level surface and the engine
has cooled down.
X Turn the SmartKey to position 2in the
ignition lock (Y page 155).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 155).
X Check the coolant temperature gauge in
the multifunctio ndisplay.
The coolan ttemperature must be below
158 ‡ (70 †).
X Turn the SmartKey to position
0(Y page 155) in the ignition lock.
X Slowly turn cap 0003half a turn counter-
clockwise to allow excess pressure to
escape.
X Turn cap 0003further counter-clockwise and
remove it.
If the coolant is at the level of marker bar
0027 in the filler neckw hen cold, there is
enough coolant in coolant expansion
tank 0002.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar 0027in the fuel
filler neck when warm, there is enough
coolant in expansion tank 0002.
X If necessary, add coolant that has been
tested and approved by Mercedes-Benz.
X Replace cap 0003and turn it clockwise as far
as it will go.
For further information on coolant, see
(Y page 582). Windshield washer system and
headlampc
leaning system G
WARNING
If antifreeze comes into contact with hot
components in the engine compartment, it
may ignite. There is a risk of fire and injury.
Let the engine cool down before you add
antifreeze. Make sure that antifreeze is not
spilled nex tto the filler neck.T horoughly
clean the antifreeze from components before
starting the engine. G
WARNING
Windshield washer concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust system it
could ignite. There is a risk of fire and injury.
Make sure that no windshield washer
concentrate is spilled next to the filler neck. Example
X
To open: pull cap0002upwards by the tab.
X Add the premixed washer fluid.
X To close: press cap 0002onto the filler neck
until it engages.
The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system.
For further information on the windshield
washer system and headlamp cleaning
system, see (Y page 583). Engine compartment
515Maintenance and care Z
The antifreeze/corrosion inhibitor
concentration in the engine cooling system
should:
R be at least 50%. This will protec tthe engine
cooling system against freezing down to
approximately -35 ‡ (-37 †).
R not exceed 55% (antifreeze protection
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
Service Products 310.1.
The coolant is checked with every
maintenance interval at a qualified specialist
workshop.
i When the vehicle is first delivered, it is
filled with a coolant mixture that ensures
adequate antifreeze and corrosion
protection.
Filling capacities Model Capacity
SL 550
Approx. 13.7 US qt
(13.0 l) SL 63 AMG
Approx. 11.6 US qt
(11.0 l) SL 65 AMG V12
Approx. 13.5 US qt
(12.8 l) i
Use antifreeze/corrosion inhibitor
according to MB approval 325.0 or 326.0. Windshield washer system and
headlampc
leaning system
Important safety notes G
WARNING
Windshield washer concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust syste mit
could ignite. There is a ris koffire and injury.
Make sure that no windshield washer
concentrate 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 damage the plastic lenses of the
headlamps.
! Do not add distilled or de-ionized water to
the washer fluid container. Otherwise, the
level sensor may be damaged.
! Only MB SummerFit and MB WinterFit
washer fluid should be mixed together. The
spray nozzles may otherwise become
blocked.
When handling washer fluid, observe the
important safety notes on service products
(Y page 578).
At temperatures above freezing:
X Fill the washer fluid reservoir with a mixture
of water and windshield washer fluid, e.g.
MB SummerFit.
X Add 1 part MB SummerFit to 100 parts
water.
At temperatures below freezing:
X Fill the washer fluid reservoir with a mixture
of water and washer fluid, e.g. MB
WinterFit. Service products and filling capacities
583Technical data Z
