Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down andtouch only the components described in the
following.
GWARNING
If engine oil comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck. Let the engine cool down and
thoroughly clean the engine oil off the com-
ponents before starting the engine.
HEnvironmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful to
the environment.
!Only use engine oils and oil filters that have
been approved for vehicles with a service sys-
tem. You can obtain a list of the engine oils
and oil filters tested and approved in accord- ance with the Mercedes-Benz Specifications
for Service Products at any Mercedes-Benz
Service center.
Damage to the engine or exhaust system is
caused by the following:
Rusing engine oils and oil filters that have notbeen specifically approved for the service
system
Rreplacing engine oil and oil filters after the
interval for replacement specified by the
service system has been exceeded
Rusing 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 lead to
damage to the engine or the catalytic con-
verter. Have excess oil siphoned off.
Example: engine oil cap
XTurn cap :counter-clockwise and remove it.
XAdd the amount of 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.
Further information on engine oil (
Ypage 292).
iThe difference between the minimum mark
and the maximum mark on the oil dipstick is
approximately 2.1 US qt (2 l).
XReplace cap :on the filler neck and tighten
clockwise.
Ensure that the cap locks into place securely.
Additional service products
Checking coolant level
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
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 a risk of injury.
238Engine compartment
Maintenance and care
Ruseinmountainous terrain or on poor road
surfaces
Rif the engine isoften left idling for long periods
Under these or similar conditions, have, for
example, the air filter, engine oil and oil filter
replaced or changed more frequently. Under
arduous operating conditions, the tires must be
checked more often. Further information can be
obtained at a qualified specialist workshop,e.g.
an authorized Mercedes-Benz Center.
Fuel/water separator
HEnvironmental note
Dispose of service products inan environ-
mentally responsible manner.
!Ifyou continue drivingwithout having the
fuel/water separator serviced, th iscould
cause damage to the engine. Any resulting
damage isnot covered bythe warranty.
If the fuel/water separator needs servicing, the
fol lowin g message appears inthe multifunction
displ ay:
Youwillalso hear a brief warning tone.
XVisit a qualified specialist workshop as soon
as possible.
Care
General notes
GWAR NING
Many cleaning products can behazardous.
So me are poisonous, others are flammable.
Alwa ys follow the instructions on the particu-
lar container. Always open your veh icle's
doors or windows when cleaning the ins ide.
Never use fluids or solvents that are not
designed for cleaning your veh icle.
Always lock away cleaning products and keep
them out of reach of children.
!For cleaning your vehicle, donot use any of
the following:
Rdry, rough or hard cloths
Rabrasive cleaning agents
Rsolvents
Rcleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective films
wit h hard objects, e.g. a ring or ice scraper.
You could otherwise scratch or damage the
surfaces and protective film.
!Do not park the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after cleaning.
Braking heats the brake discs and the brake
pads/linings, thus drying them. The vehicle
can then beparked.
HEnvironmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man-
ner.
Regular care of your vehicle isa condition for
retaining the quality in the long term.
Use care products and cleaning agents recom-
mended and approved by Mercedes-Benz.
Exterior care
Automatic car wash
GWARNING
Braking efficiency is reduced after washing
the vehicle. There is a risk of an accident.
After the vehicle has been washed, brake
carefully while paying attention to the traffic
conditions until full braking power is restored.
!Never clean your vehicle ina Touchless
Automat icCar Wash as these use special
Care241
Maintenance and care
Z
The vehicle will use more fuel than usual in the
following situations:
Rat very low outside temperatures
Rin city traffic
Ron short journeys
Rin mountainous terrain
Rwhen towing a trailer
Engine oil
General notes
!Never use engine oil or an oil filter of a spec-
ification other than is necessary to fulfill the
prescribed service intervals. Do not change
the engine oil or oil filter in order to achieve
longer replacement intervals than those pre-
scribed. You could otherwise cause engine
damage or damage to the exhaust gas after-
treatment.
Follow the instructions in the service interval display regarding the oil change. Otherwise,
you may damage the engine and the exhaust
gas aftertreatment.
When handling engine oil, observe the important
safety notes on service products (
Ypage 289).
The engine oils are matched to the performance
of Mercedes-Benz engines and service intervals.
For this reason, only use engine oils and oil fil-
ters that are approved for vehicles with a service
system.
For a list of approved engine oils and oil filters,
consult an authorized Mercedes-Benz Center or
go to the Internet site
http://bevo.mercedes-benz.com (USA only).
The table shows which engine oils have been
approved for your vehicle.
ModelMB-Freigabe or MB
Approval
G 550229.3 / 229.5
G 63 AMG229.5
iThe MB-Freigabe or MB Approval is stated
on the oil containers.
Filling capacities
The following values refer to an oil change
including the oil filter.
Vehicle modelCapacity including oil filter
G 5502.4 US gal (9.0 l)
G 63 AMG2.25 US gal (8.5 l)
Additives
!Do not use any additives in the engine oil.
This could damage the engine.
Engine oil viscosity
Viscosity describes the flow characteristics of a
fluid. If an engine oil has a high viscosity, this
means that it is thick; a low viscosity means that it is thin.
Select an engine oil with an SAE classification
(viscosity) suitable for the prevailing outside
temperatures. The table shows you which SAE
classifications are to be used. The low-temper-
ature characteristics of engine oils can deterio-
rate significantly, e.g. as a result of aging, soot
and fuel deposits. It is therefore strongly rec-
ommended that you carry out regular oil
changes using an approved engine oil with the
appropriate SAE classification.
292Service products and filling capacities
Technical data