Wheels, Tires, Changing Wheels; Wheels Tires - Mercedes-Benz 300 SD-Turbo Diesel 1985 Owner's Manual

Wheels Tires Changing Wheels
Wheels, Tires
Replace w heels or tires w ith the same
designation, m anufacturer and type
as shown on the original part.
See any authorized MERCEDES-
BENZ dealer fo r inform ation on tested
and recom m ended w heels and tires
fo r summ er and w inter operation.
They can also offer more advice co n ­
cerning tire service and purchase.
Front tires should be replaced in sets.
If possible, the spare tire should be
used on the rear wheels. We recom ­
mend that you break in new tires for
approx. 100 km /60 miles at moderate
speed.
A fter a wheel change, it is imperative
that the wheel m ounting bolts be
retightened after approx. 800 km /
500 miles. On new vehicles retighten­
ing is carried out in the course of the
1st inspection. Retightening is also
necessary when new wheels are fitted
at a later date, e.g. when the spare
wheel is used fo r the first time or
when a new set of w heels with M + S
tire s is fitted.
For tire specifications, refer to
'Technical Data".
Rotating wheels:
The wheels can be rotated according
to the degree of tire wear while
retaining the same sense of rotation.
Rotating, however, should be carried
out before the characteristic tire wear
pattern (shoulder wear on front
w heels and tread center wear on rear
wheels) becomes visible at a mileage
of 5000— 10 000 km /3000— 6000
miles as otherwise the driving p rop e r­
ties deteriorate.
Slowly leaking air (e.g. due to a nail in
the tire) may cause damage to the tire
such as tread separation. Regular tire
pressure checks at intervals of no
more than 14 days are therefore
essential. For the tire pressure
checks, keep in mind that hot tires
show higher pressure than cold tires.
See tire pressure chart on last page.
Should the tire pressure decrease
constantly, check w hether foreign
objects have penetrated the tire or if
rim or valve allow the air to.leak.
Thoroughly clean the inner side of the
wheels any time you rotate the wheels
or wash vehicle underside.
Dented or bent rims cause tire
pressure loss and damage to the tire
beads. For this reason, check rims for
damage at regular intervals.
The rim flanges must be checked for
wear before a tire is mounted.
Remove burrs, if there are any.