If theEngine Oil Level Not Measurablewith Running Enginemessage appears:
XSwitch off the engine.
XIf the engine is at normal operating tem-
perature: waitabou tfive minutes before car-
rying out the measurement.
XIf the engine is not at normal operating
temperature: e.g. if the engine was only star-
ted briefly, wai tapproximately 30 minutes
before carrying out the measurement.
If you wish to cancel the measurement, press
the 9 or: button on the multifunction
steering wheel.
Adding engine oil
!Use only engine oils and oil filters that are
approved for vehiclesw ithaservice system. A
list of the engine oils and oil filters that have
been tested and approved in accordance with
Mercedes-Benz Specifications for Service
Products is available at any authorized
Mercedes-Benz Center.
The following cause engine failure or damage
to the exhaust system:
RUse of engine oils and oil filters that have
not been expressly approved for the service
system
RReplacement of engine oil and oil filter after
the replacement interval specifiedbyt he
service system has expired
RUse of engine oil additives
!Do not add too much oil. If the oil level is
above the "max" mark on the dipstick, too
much oil has been added. This can leadt o
damage to the engine or the catalytic con-
verter. Have excess oil siphoned off.
HEnvironmental note
When adding oil, take care not to spilla ny. If
oil enters the soil or waterways ,itisharmful to
the environment.
Example: engine oil cap
XTurn cap :counter-clockwise and remove it.
XAdd the amount of engine oil required.
Observe the specifications in the on-board com-
puter when doing so or fill carefully to the max-
imum mark on the oil dipstick.
The difference betweent he minimum mark and
the maximum mark on the oil dipstick is approx-
imatel y2.1 US qt (2.0 l).
XReplace cap :on the fille rneck and tighten
clockwise.
Ensur ethat the cap locks into place securely.
Further information on engine oil(
Ypage 278).
Additional servic eproducts
Important safety notes
GWARNING
Certai ncomponents in the engine compart-
ment, such as the engine, radiator and parts
of the exhaus tsystem, can become very hot.
Working in the engine compartment poses a
ris kofi njury.
Where possible ,let the engine cool dow nand
touch only the components described in the
following.
GWARNING
The engine compartment contains moving
components .Certai nc omponents ,suc ha s
the radiator fan, may continu etorun or start
agai nsudde nlyw hent he ignition is off. There
is ar iskofi njury.
228Engine compartment
Maintenancea nd care
The antifreeze/corrosion inhibitor concentra-
tion in the engine cooling system should:
Rbe at least 50%. This will protectthe engine
cooling system against freezin gdown to
approximately -35 ‡(-37 †).
Rnot exceed 55% (antifreez eprotection down
to -49 ‡[-45 †]). Otherwise, heat will not be
dissipated as effectively.
Mercedes-Benz recommends an antifreeze/
corrosion inhibitor in accordanc ewith MB Spec-
ifications for ServiceP roducts 310.1.
iWhen the vehicle is first delivered, it is filled
with acoolant mixture that ensures adequate
antifreeze and anti-corrosion protection.
iThe coolant is checked at specified intervals
at aq ualified specialist workshop.
The engine cooling system is filled with coolant
at the factor ywhich contains antifreeze/corro-
sion inhibitor that ensures protection down to
approximately -35 ‡(-37 †).
Capacity
Missing values were not availableatt ime of
going to print.
ModelCapacity
G5 50Approx.1 1.1 US qt
(10.5 l)
G63A MGApprox.1 4.6 US qt
(13.8 l)
G65A MG
Windshield/headlamp cleaning sys-
tem
Important safety notes
GWARNING
Windshield washer concentrate could ignite if it comes into contact with hot engine compo-
nentsort he exhaust system. There is arisk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
!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.
Do not use distilled or de-ionized water. Other-
wise, the level sensor may give afalse reading.
When handling washer fluid, observe the impor-
tant safety notes on service products
(
Ypage 276).
At temperatures above freezing:
XFill the washer fluid reservoir with amixture of
water and windshield washer fluid, e.g. MB
SummerFit.
Add 1part MB SummerFit to 100 parts water.
At temperatures below freezing:
XFill the washer fluid reservoir with amixture of
water and washer fluid, e.g. MB WinterFit.
For the correctm ixing ratio refer to the infor-
mation on the antifreeze reservoir.
iAdd 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.
Servicew ork, such as refilling with refrigerant or
replacing component parts, may only be carried
out by aqualified specialist workshop. All appli-
cable regulations must be adhered to, SAE
standard J639 included.
Always have work on the climate control system carried out at aqualified specialist workshop.
280Service products and filling capacities
Technical data
