Mercedes-Benz A Series 2015 Owner's Manual page 371

Changing a wheel
368
Interchanging the front and rear wheels of
differing dimensions can render the general
operating permit invalid.
Observe the instructions and safety notes in
the "Changing a wheel" section (
The wear patterns on the front and rear tyres
differ depending on the operating conditions.
Interchange the wheels before a clear wear
pattern has formed on the tyres. Front tyres
typically wear more on the shoulders and the
rear tyres in the centre.
On vehicles that have the same size front and
rear wheels, you can interchange the wheels
every 5,000 to 10,000 km depending on the
degree of tyre wear. Ensure the direction of
rotation is maintained.
Clean the contact surfaces of the wheel and
the brake disc thoroughly every time a wheel
is interchanged. Check the tyre pressure and,
if necessary, restart the tyre pressure loss
warning system or the tyre pressure monitor.
Direction of rotation
Tyres with a specified direction of rotation
have additional benefits, e.g. if there is a risk
of aquaplaning. These advantages can only be
gained if the tyres are fitted corresponding to
the direction of rotation.
An arrow on the sidewall of the tyre indicates
its correct direction of rotation.
Storing wheels
Store wheels in a cool, dry and preferably
dark place if they are not being used. Protect
the tyres against oil, grease, petrol and diesel.
Fitting a wheel
Preparing the vehicle
Stop the vehicle on solid, non-slippery and
X
level ground.
Apply the electric parking brake manually.
X
Move the front wheels to the straight-
X
ahead position.
Vehicles with manual transmission:
X
depress the clutch pedal fully and engage
page 367). first or reverse gear.
Y
Vehicles with automatic transmission:
X
shift the automatic transmission to posi-
tion P.
Switch off the engine.
X
Vehicles without KEYLESS-GO: remove
X
the key from the ignition lock.
Vehicles with KEYLESS-GO start-func-
X
tion or KEYLESS-GO: open the driver's
door.
The on-board electronics now have status
0. This is the same as the key having been
removed.
Vehicles with KEYLESS-GO start-func-
X
tion or KEYLESS-GO: remove the Start/
Stop button from the ignition lock
( page 157).
Y
If included in the vehicle equipment,
X
remove the tyre-change tool kit from the
vehicle.
Safeguard the vehicle against rolling away
X
( page 184).
Y
i Apart from some country-specific var-
iants, vehicles are not equipped with tyre-
changing tools. Some tools for changing a
wheel are specific to the vehicle. For more
information on which tools are required to
perform a wheel change on your vehicle,
consult a qualified specialist workshop.
Necessary tyre-changing tools may
include, for example:
Jack
R
Wheel chock
R
Wheel wrench
R