tional tires, an arrow on the sidewall shows the
prescribed direction of rotation of the tire.
Twin rear tires: if the tires are of identical
dimensions, you can rotate the wheels on the
front axle and the inner wheels on the rear axle
in pairs such that the original direction of tire
rotation is retained. With unidirectional tires,
you may rotate the outside wheels at the rear
axle from one side to the other.
Direction of rotation
Tires with a specified direction of rotation have
additional benefits, e.g. if there is a risk of hydro-
planing. You will only gain these benefits if the
correct direction of rotation is observed.
An arrow on the sidewall of the tire indicates its
correct direction of rotation.
You may mount a spare wheel against the direc-
tion of rotation. Observe the time restriction on
use as well as the speed limitation specified on
the spare wheel.
Storing wheels
Store wheels that are not being used in a cool,
dry and preferably dark place. Protect the tires
from contact with oil, grease and fuel.
Mounting a wheel
Vehicle preparation
X
Stop the vehicle as far away as possible from
traffic and on a level, firm and non-slip sur-
face.
X
If your vehicle poses a risk to approaching
traffic, switch on the hazard warning lamps.
X
Apply the parking brake.
X
Turn the front wheels to the straight-ahead
position.
X
Move the selector lever of the automatic
transmission to position P.
X
Switch off the engine.
X
Passengers should leave the vehicle. Make
sure that the passengers are not endangered
as they do so.
X
Make 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.
X
Place the warning triangle or warning lamp at
a suitable distance.
Observe legal requirements.
X
Secure the vehicle to prevent it from rolling
away.
i
Observe the safety notes on parking in the
section on "Driving and parking"
(
Y page 130).
X
On 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.
X
On slight inclines: place chocks or other
suitable o
bjects under the wheels on the front
and rear axles opposite the wheel to be
changed.
X
Take the vehicle tool kit and the jack from the
footwell on the front-passenger side
(
Y page 240).
X
Remove the spare wheel from the spare wheel
bracket (
Y page 273). Observe the safety
notes in the "Spare wheel" section
(
Y page 272).
X
On wheels with wheel bolts, remove the hub
caps.
X
Assemble the lug wrench extension using the
middle rod and the rod with the largest diam-
eter from the three-piece jack pump lever.
X
Starting with the middle rod, slide the lug
wrench extension as far as it will go onto the
lug wrench.
X
Using lug wrench :, loosen the wheel bolts/
wheel nuts on the wheel to be changed by
about one full turn. Do not unscrew the wheel
bolts/nuts completely.
Changing wheels
267
Wheels and tires
Z
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