Get Wheels and tires -> Mounting a wheel Guide for Mercedes C Class 4 Door Second Generation (2007-2013)

Changing awheel

Flat tire

You can find information on whatto do in the

event of a flat tire in the "Flat tire" section

(Y page 297).

Information on driving with MOExtended tires

in the event of a flat tire can be found under

"MOExtended tires (tires with run-flat

characteristics" (Y page 297).

Rotating the wheels

WARNING

Interchanging the front and rear wheels may

severely impair the driving characteristics if

the wheels or tires have different dimensions.

The wheel brakes or suspension components

may also be damaged. There is a risk of

accident.

Rotate front and rear wheels only if the wheels

and tires are of the same dimensions.

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

specialist workshop.

Always observe the instructions and safety

notes in the "Mounting awheel" section

(Y page 334).

The wear patterns on the front and rear tires

differ, depending on the operating conditions.

Rotate the wheels before a clear wear pattern

has formed on the tires. Front tires typically

wear more on the shoulders and the rear tires

in the center.

If your vehicle's tire configuration allows, you

can rotate the wheels according to the

intervals in the tire manufacturer's warranty

book in your vehicle documents. If no

warranty book is available, the tires should be

rotated every 3,000 to 6,000 miles (5,000 to

10,000 km), or earlier if tire wear requires. Do

not change the direction of wheel rotation.

Clean the contactsurfacesofthe wheel and

the brake disc thoroughly every time a wheel

is rotated. Check the tire pressures.

Information on changing tires and mounting

the spare wheel (Y page 334).

Direction of rotation

Tires with a specified direction of rotation

have additional benefits, e.g. if there is a risk

of hydroplaning. You will only gain these

benefits if the correct direction of rotation is

maintained.

An arrow on the sidewall of the tire indicates

its correct direction of rotation.

Storing wheels

Store wheels that are not being used in a cool,

dry and preferably dark place. Protect the

tires from oil, grease, gasoline and diesel.

Cleaning the wheels

WARNING

The water jet from a circular jet nozzle (dirt

blasters) can cause invisible exterior damage

to the tires or chassis components.

Components damaged in this way may fail

unexpectedly. There is a risk of an accident.

Do not use power washers with circular jet

nozzles to clean the vehicle. Have damaged

tires or chassis components replaced

immediately.

Mounting awheel

Preparing the vehicle

Stop the vehicle on solid, non-slippery and

level ground.

Apply the parking brake.

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Mounting awheel

Wheels and tires

Bring the front wheels into the straight-

ahead position.

Secure the vehicle against rolling away

(Y page 158).

Switch off the engine.

Vehicles without KEYLESS-GO: remove

the SmartKey from the ignition lock.

Vehicles with KEYLESS-GO: openthe

driver's door.

The on-board electronics have status 0,

which is the same as the SmartKey having

been removed.

Vehicles with KEYLESS-GO: remove the

Start/Stop button from the ignition lock

(Y page 142).

If included in the vehicle equipment,

remove the tire-change tool kit from the

vehicle.

Secure the vehicle to prevent it from rolling

away.

Securing the vehicle to prevent it

from rolling away

If your vehicle is equipped with a wheel chock,

it can be found in the tire-change tool kit

(Y page 296).

The folding wheel chock is an additional

safety measure to prevent the vehicle from

rolling away, for example when changing a

wheel.

Fold both plates upwards :.

Fold out lower plate ;.

Guide the lugs on the lower plate fully into

the openings in base plate =.

Securing the vehicle on level ground

On level ground: place chocks or other

suitable items under the front and rear of

the wheel that is diagonally opposite the

wheel you wish to change.

Securing the vehicle on slight downhill gradients

On light downhill gradients: place

chocks or other suitable items in front of

the wheels of the front and rear axle.

Raising the vehicle

WARNING

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

jacking point of the vehicle. The base of the

Mounting awheel

335

Wheels and tires

jack must be positioned vertically, directly

under the jacking point of the vehicle.

The following must be observed when raising

the vehicle:

to raise the vehicle, onlyuse the vehicle-

specific jack that has been tested and

approved by Mercedes-Benz.Ifused

incorrectly, the jack could tip over with the

vehicle raised.

the jack is designed only to raise and hold

the vehicle for a short time while a wheel

is being changed. It is not suited for

performing maintenance work under the

vehicle.

avoid changing the wheel on uphill and

downhill slopes.

before raising the vehicle, secure it from

rolling away by applying the parking brake

and inserting wheel chocks. Never

disengage the parking brake while the

vehicle is raised.

the 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.

do not use wooden blocks or similar

objects as a jack underlay.Otherwise, the

jack will not be able to achieve its load-

bearing capacity due to the restricted

height.

make sure thatthe distance between the

underside of the tires and the ground does

not exceed 1.2 inches (3 cm).

never place your hands and feet under the

raised vehicle.

never lie under the raised vehicle.

never start the engine when the vehicle is

raised.

never open or close a door or the trunk lid

when the vehicle is raised.

make sure that no persons are present in

the vehicle when the vehicle is raised.

The jack is designed exclusively for

jacking up the vehicle at the jacking points.

Otherwise, your vehicle could be damaged.

Using lug wrench :, loosen the bolts on

the wheel you wish to change by about one

full turn. Do not unscrew the bolts

completely.

The jacking points are located just behind the

wheel housings of the front wheels and just

in front of the wheel housings of the rear

wheels (arrows).

Position jack = at jacking point ;.

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Mounting awheel

Wheels and tires

Make sure the foot of the jack is directly

beneath the jacking point.

Turn crank ? clockwise until jack = sits

completely on jacking point ; and the

base of the jack lies evenly on the ground.

Turn crank ? until the tire is raised a

maximum of 1.2 in (3 cm) from the ground.

Removing awheel

Do not place wheel bolts in sand or on a

dirty surface. The boltand wheel hub

threads could otherwise be damaged when

you screw them in.

Unscrew the wheel bolts.

Remove the wheel.

Mounting anew wheel

WARNING

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 notcontinue driving.

WARNING

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 pay attention to the instructions and

safety notes in the "Changing a wheel"

section (Y page 334).

Only use wheel bolts that have been designed

for the wheel and the vehicle. For safety

reasons, Mercedes-Benz recommends that

you only use wheel bolts which have been

approved for Mercedes-Benz vehicles and the

respective wheel.

Be sure to use the original-length wheel bolts

when re-mounting the original wheel after it

has been repaired.

To prevent damage to the paintwork, hold

the wheel securely against the wheel hub

while screwing in the first wheel bolt.

Clean the wheel and wheel hub contact

surfaces.

Place the new wheel on the wheel hub and

push it on.

Tighten the wheel bolts until they are

finger-tight.

Mounting awheel

337

Wheels and tires

Wheels and tires -> Mounting a wheel for Your Mercedes C Class 4 Door Second Generation (2007-2013)

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