Coolant
Important safety notes
GWARNING
The cooling system is pressurized, partic- ularly when the motor is warm. If you open
the cap, you could be scalded if hot coolant
sprays out. There is a risk of injury.
Let the engine cool down before you open
the cap. Wear gloves and eye protection.
Slowly open the cap to relieve pressure.
Checking the coolant
The coolant expansion tank is in the area
under the service cover.
XOpen the service cover (Ypage 151).
XLet the coolant cool down for at least
30 minutes.
XPark the vehicle on a level surface.
Only check the coolant level when the vehi-cle is on a level surface and the engine has
cooled down.
XCheck the reservoir visually.
The fluid level must be between MIN and
MAX.
Adding coolant
XCover cap 0043of coolant expansion tank 0044
with a cloth.
XSlowly turn cover cap 0043anti-clockwise to
allow excess pressure to escape.
XTurn cap 0043further anti-clockwise and
remove it.
XDo not exceed the maximum filling level
when adding coolant.
XScrew on cap 0043tightly. For further information on coolant, see
(
Ypage 210).
Windshield washer system
GWARNING
Windshield washer concentrate is highly
flammable. If it comes into contact with hot
components in the front compartment, it
may ignite. There is a risk of fire and
injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
XOpen the service cover (Ypage 151).
XTo open: pull cap0043upwards by the tab.
XIf available, pull the removable nozzle up
as far as the stop.
XAdd the premixed washer fluid.
XTo close: if available, push the removable
nozzle down and push it inside.
XPress cap 0043onto the filler neck until it
engages.
Further information on windshield washer
fluid/antifreeze (
Ypage 211).
Maintenance
Service display
Service message
The service display informs you of the next
service due date. Depending on the operating
conditions of the vehicle, the remaining time
or distance until the next service due date is displayed.
Maintenance153
>> Maintenance and care.
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Operating Fluids 310.1 and 325.6 can be mixed
together. An orange discoloration depending
on the mixing ratio does not affect the func-
tion.
iWhen the vehicle is first delivered, it is
filled with a coolant mixture that ensures
adequate antifreeze and corrosion protec-
tion.
iThe coolant is checked with every main-
tenance interval at a qualified specialist
workshop.
Windshield washer system
General notes
!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
(
Ypage 207).
At temperatures above freezing:
XFill the washer fluid reservoir with a mix- ture of water and windshield washer fluid,
e.g. MB SummerFit.
Add 1 part MB SummerFit to 100 parts water.
At temperatures below freezing:
XFill the washer fluid reservoir with a mix-
ture of water and washer fluid, e.g. MB Win-
terFit.
The correct mixing ratio can be taken from
the information on the antifreeze protec-
tion container.
iAdd windshield washer fluid, e.g. MB
SummerFit 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
filled with refrigerant R‑134a.
The instruction label regarding the refrig-
erant type used can be found on the left, on the
underside of the hood.
!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. Other-
wise, the climate control system may be
damaged.
Service work, such as topping up refrigerant
or replacing components, may only be carried
out by a qualified specialist workshop. All
applicable regulations must be adhered to,
SAE standard J639 included.
Always have work on the climate control sys-
tem carried out at a qualified specialist
workshop.
Refrigerant instruction label
The refrigerant instruction label:
Ris located at the front on the right on the
body frame.
Rinforms that service work is to be carried
out at a qualified specialist workshop.
Service products and filling capacities211
>> Technical data.
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