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Wheels and tires, Changing a wheel – Mercedes-Benz CLA-Class 2015 User Manual

Page 343

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Occupant distribution
The distribution of occupants in a vehicle at

their designated seating positions.
Total load limit
Nominal load and luggage load plus 68 kg

(150 lbs) multiplied by the number of seats in

the vehicle.

Changing a wheel

Flat tire

The "Breakdown assistance" section

(

Y

page 300) contains information and notes

on how to deal with a flat tire. 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 301).

Rotating the wheels

G

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 acci-

dent.
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 loca-

ted in the wheel.
Tire-mounting tools should not be used

near the valve. This could damage the elec-

tronic components.
Only have tires changed at a qualified spe-

cialist workshop.

Observe the instructions and safety notes in

the "Changing a wheel" section (

Y

page 341).

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 inter-

vals 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.

Ensure the direction of rotation is maintained.
Clean the contact surfaces of the wheel and

the brake disc thoroughly every time a wheel

is rotated. Check the tire pressure and, if nec-

essary, restart the tire pressure loss warning

system or the tire pressure monitor.

Direction of rotation

Tires with a specified direction of rotation

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

of hydroplaning. These advantages can only

be gained if the tires are installed correspond-

ing to the direction of rotation.
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.

Mounting a wheel

Preparing the vehicle

X

Stop the vehicle on solid, non-slippery and

level ground.

X

Apply the electric parking brake manually.

X

Bring the front wheels into the straight-

ahead position.

X

Shift the transmission to position P.

X

Switch off the engine.

Changing a wheel

341

Wheels

and

tires

Z