Exterior
Cleaning the wheels
!Do not use any acidic or alkaline cleaning
agents. They can cause corrosion on the
wheel bolts or the retainer springs for the
wheel-balancing weights.
!Do not park your vehicle for a long period of
time directly after cleaning, particularly after
cleaning the wheel rim with wheel cleaner.
Wheel cleaner can lead to the increased cor-
rosion of the brake discs and pads. Therefore,
drive for a few minutes after cleaning. By
heating up the brakes, the brake discs and
pads dry. The vehicle can then be parked for a
long period of time.
If you clean the wheels with a power washer,
observe the safety notes for the power washer
(
Ypage 264). You could otherwise damage the
tires.
Cleaning the wiper blades
GWARNING
You could become trapped by the windshield wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
!Do not fold the windshield wipers away from
the windshield unless the hood is closed. Oth-
erwise, you could damage the hood.
!Do not pull the wiper blade. Otherwise, the
wiper blade could be damaged.
!Do not clean wiper blades too often and do
not rub them too hard. Otherwise, the graph-
ite coating could be damaged. This could
cause wiper noise.
!Hold the wiper arm securely when folding
back. The windshield could be damaged if the
wiper arm smacks against it suddenly.
XTurn the SmartKey to position 0in the ignition
lock or remove the SmartKey.
XFold the windshield wiper arms away from the
windshield until you feel them engage.
XCarefully clean the wiper blades with a damp
cloth.
XFold back the wiper arms before switching on
the ignition.
Cleaning the exterior lighting
!Only use cleaning agents or cleaning cloths
which are suitable for plastic light lenses.
Unsuitable cleaning agents or cleaning cloths
could scratch or damage the plastic light len- ses.
XClean the plastic covers of the exterior light-
ing with a damp sponge and a mild cleaning
agent, e.g. Mercedes-Benz car shampoo, or
with cleaning cloths.
Cleaning the sensors
!Do not use dry, coarse or hard cloths and do
not scrub. You will otherwise scratch or dam-
age the sensors.
If you clean the sensors with a power washer
or steam cleaner, observe the information
provided by the manufacturer regarding the
distance to be maintained between the vehi-
cle and the nozzle of the power washer.
XClean drive system sensors :with water, car
shampoo and a soft cloth.
266Care
Maintenance and care
Mounting a wheel
Vehicle preparation
XStop the vehicle as far away as possible from
traffic and on a level, firm and non-slip sur-
face.
XIf your vehicle poses a risk to approaching
traffic, switch on the hazard warning lamps.
XApply the parking brake.
XTurn the front wheels to the straight-ahead
position.
XShift the transmission to position P.
XSwitch off the engine.
XPassengers should leave the vehicle. Make
sure that the passengers are not endangered
as they do so.
XMake sure that no one is near the danger area
while the wheel is being changed. Anyone
who is not directly assisting in the wheel
change should, for example, stand behind the
barrier.
XPlace the warning triangle or warning lamp at
a suitable distance.
Observe the legal requirements on the cor-
rect use of the warning triangle or warning
lamp for the country in which you are cur-
rently driving
XSecure the vehicle to prevent it from rolling
away.
Observe the safety notes on parking under
"Driving and parking" (
Ypage 133)
XOn level terrain: place chocks or other suit-
able objects under the front and rear of the
wheel that is diagonally opposite the wheel to
be changed.
XOn slight inclines: place chocks or other
suitable objects under the wheels on the front and rear axles opposite the wheel to be
changed.
XIf included in the vehicle equipment, take the
tire-changing tool kit out of the vehicle tool kit
(
Ypage 270).
Apart from some country-specific variants,
vehicles are not equipped with tire-changing
tools. Some tools for changing a wheel are
specific to the vehicle. Consult a qualified
specialist workshop for more information on
which tools are required to perform a wheel
change on your vehicle.
XIf included in the vehicle equipment, remove
the spare wheel from the spare wheel bracket (
Ypage 301). Observe the safety notes listed
under "Spare wheel" (Ypage 301).
XCarefully remove the hub caps.
XUsing lug wrench :, loosen the wheel bolts
on the wheel to be changed counter-clock-
wise by about one full turn. Do not remove the
wheel bolts.
Raising the vehicle
GWARNING
If you do not position the jack correctly at the
appropriate jacking point of the vehicle, the
jack could tip over with the vehicle raised.
There is a risk of injury.
Only position the jack at the appropriate jack-
ing point of the vehicle. The base of the jack
must be positioned vertically, directly under
the jacking point of the vehicle.
GWARNING
On uphill and downhill slopes, the jack could
tip over with the vehicle raised. There is a risk
of injury.
Do not change wheels on uphill or downhill
gradients. Notify a qualified specialist work-
shop.
!Only position the jack on the jacking points
intended for this purpose. You could other-
wise damage the vehicle.
Observe the following when raising the vehicle:
RTo raise the vehicle, only use the vehicle-spe-
cific jack that has been tested and approved
by Mercedes-Benz. If the jack is used incor-
Changing wheels297
Wheels and tires
Z
rectly, it could tip over while the vehicle is
raised.
RThe vehicle's jack is intended only to raise the
vehicle for a short time when changing a
wheel. It is not suited for performing mainte-
nance work under the vehicle.
RAvoid changing the wheel on uphill and down-
hill slopes.
RBefore raising the vehicle, secure it from roll-
ing away by applying the parking brake and
inserting wheel chocks. Never disengage the
parking brake while the vehicle is raised.
RThe jack must be placed on a firm, flat and
non-slip surface. On a loose surface, a large,
load-bearing underlay must be used. On a
slippery surface, a non-slip underlay must be
used, e.g. rubber mats.
RMake sure that the distance between the
underside of the tires and the ground does not
exceed 1.2 in(3 cm).
RNever place your hands or feet under the
raised vehicle.
RNever lie under the raised vehicle.
RNever start the engine when the vehicle is
raised.
RNever open or close a door or the tailgate/
door when the vehicle is raised.
RMake sure that no persons are present in the
vehicle when the vehicle is raised.
Jacking points :(rubber stoppers) are located
just behind the front wheel arches and just in
front of the rear wheel arches.
XPlace jack ;beneath corresponding jacking
points :.
XTurn handwheel =until jack plate ;sits
securely on jacking point :.
XMake sure the base of jack ;is positioned
vertically beneath jacking point :.
XAssemble adapter?and ratchet Afrom the
vehicle tool kit.
XPlace adapter ?and ratchet Aon the hex-
agon nut of jack ;so that the lettering AB/
DOWN is visible.
XTurn ratchet Ain the AUF/UP direction until
the tire is a maximum of 3 cm off the ground.
When doing so, jack ;may move to one of
the side support surfaces.
Removing a wheel
!Do not place wheel bolts in sand or on a dirty
surface. The bolt and wheel hub threads could
otherwise be damaged when you screw them
in.
XUnscrew the wheel bolts.
XRemove the wheel.
Mounting a new wheel
GWARNING
Oiled or greased wheel bolts or damaged
wheel bolts/hub threads can cause the wheel bolts to come loose. As a result, you could
lose a wheel while driving. There is a risk of
accident.
Never oil or grease wheel bolts. In the event of
damage to the threads, contact a qualified
specialist workshop immediately. Have the
damaged wheel bolts or hub threads
replaced/renewed. Do not continue driving.
GWARNING
If you tighten the wheel bolts or wheel nuts
when the vehicle is raised, the jack could tip
over. There is a risk of injury.
Only tighten the wheel bolts or wheel nuts
when the vehicle is on the ground.
Always observe the instructions and safety
notes on "Changing a wheel" (
Ypage 296).
298Changing wheels
Wheels and tires
Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety rea-
sons, Mercedes-Benz recommends that you
only use wheel bolts which have been approved
for Mercedes-Benz vehicles and the respective
wheel.
!On vehicles equipped with a tire pressure
monitor, electronic components are located
in the wheel.
Tire-mounting tools should not be used near
the valve. This could damage the electronic
components.
Only have tires changed at a qualified spe-
cialist workshop.
XClean the wheel and wheel hub contact sur-
faces.
XSlide the new wheel onto the wheel hub and
push it on.
XScrew in the wheel bolts and tighten them
lightly.
Lowering the vehicle
GWARNING
The wheels could work loose if the wheel nuts and bolts are not tightened to the specified
tightening torque. There is a risk of accident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel is changed.
:—AWheel bolts
XPlace the adapter and the ratchet on the hex-
agon head nut of the jack such that the let-
tering AB/DOWN is visible.
XTurn the ratchet in the AB/DOWNdirection
until the vehicle is once again standing firmly
on the ground.
XPut the jack aside.
XTighten the wheel bolts evenly in a crosswise
pattern in the sequence indicated (: toA).
Tighten the wheel bolts to the following tight-
ening torques:
RSteel wheel 147 lb-ft(200 Nm)
RAlloy wheel 133 lb-ft(180 Nm)
XTurn the jack back to its out-of-use position.
XStow the jack and the rest of the tire-change
tool kit in the vehicle again.
XWheel with hub cap: position the opening for
the tire valve in the hub cap over the tire valve.
XPush the edge of the hub cap with both hands
against the wheel until it clicks into place.
Make sure the hub cap retaining catches
engage on the steel wheel.
XIf included in the vehicle equipment, secure
the faulty wheel in the spare wheel bracket
(
Ypage 301). Otherwise, transport the faulty
wheel in the cargo compartment.
XCheck the tire pressure of the newly mounted
wheel and adjust it if necessary.
Observe the recommended tire pressure
(
Ypage 280).
Vehicles with the tire pressure monitor sys-
tem: all mounted wheels must be equipped
with functioning sensors.
XRetighten the wheel bolts or wheel nuts to the
specified tightening torque after the vehicle
has been driven for 30 miles (50 km).
Changing wheels299
Wheels and tires
Z
When using a wheel/spare wheel with a new or
newly painted wheel rim, have the wheel bolts/
nuts retightened again after approximately 600
to 3,000 miles (1,000 to 5,000 km). Observe the
specified tightening torque.
Wheel and tire combination
General notes
!
Retreaded tires are neither tested nor rec-
ommended by Mercedes-Benz, since previ-
ous damage cannot always be detected on
retreaded tires. As a result, Mercedes-Benz
cannot guarantee vehicle safety if retreaded
tires are mounted. Do not mount used tires if you have no information about their previous
usage.
!For safety reasons, Mercedes-Benz recom-
mends that you only use tires, wheels and
accessories which have been specially
approved by Mercedes-Benz for your vehicle.
These tires have been specially adapted for
use with the driving safety systems, such as
ABS or ESP
®.
Only use tires, wheels or accessories tested
and approved by Mercedes-Benz. Certain
characteristics, e.g. handling, vehicle noise
emissions or fuel consumption, may other-
wise be adversely affected. In addition, when
driving with a load, tire dimension variations
could cause the tires to come into contact
with the bodywork and axle components. This could result in damage to the tires or the vehi-
cle.
Mercedes-Benz accepts no liability for dam-
age resulting from the use of tires, wheels or
accessories other than those tested and
approved.
Further information on wheels, tires and
approved combinations can be obtained from
any qualified specialist workshop.
!Large wheels: the lower the section width
for a certain wheel size, the lower the ride
comfort is on poor road surfaces. Roll comfort and suspension comfort are reduced and the
risk of damage to the wheels and tires as a
result of driving over obstacles increases.
You will find a table with the recommended tire
pressures for various vehicle loads on the inside
of your vehicle's fuel filler flap or under "Tire
pressure tables" (
Ypage 288). You can find fur-
ther information under "Tire pressure"
(
Ypage 280).
Check tire pressures regularly and only when
the tires are cold.
Notes on the vehicle equipment – always equip
the vehicle:
Rwith tires of the same size across an axle
(left/right)
Rwith the same type of tires on all wheels at a
given time (summer tires, winter tires)
iNot all wheel/tire combinations can be
installed at the factory in all countries.
Tires
R 17
TiresSteel wheels
225/55 R17 RF (XL) 101V6.5 J x 17 H2 ET 50
225/55 R17 RF (XL) 101H6.5 J x 17 H2 ET 50
R 17
TiresAlloy wheels
225/55 R17 RF (XL) 101V7 J x 17 H2 ET 51
225/55 R17 RF (XL) 101H7 J x 17 H2 ET 51
300Wheel and tire combination
Wheels and tires