Wheels, Tires - Mercedes-Benz 300SDL-TURBO 126 D 1986 Owner's Manual

Wheels, Tires

Replace wheels or tires with the same
designation, m anufacturer and type
as shown on the original part.
Warning!
Do not mix different tire construc­
tion types (i.e. radial, bias, and bias-
belted) on your car because hand­
ling may be adversely affected and
may result in loss of control.
See any authorized MERCEDES-
BENZ dealer fo r inform ation on tested
and recom m ended wheels and tires
fo r sum m er and w inter operation.
They can also offer more advice con­
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 fo r
approx. 100 km (60 miles) at m oder­
ate speed.
70
It is imperative that the wheel m ount­
ing bolts be retightened after approx.
800 km (500 miles). On new vehicles
retightening is carried out during 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 wheels with M + S
tires are installed.
Tightening torque: 110 Nm (80 Ib-ft).
For tire specifications, refer to
" Technical Data" .
Rotating wheels:
The wheels can be rotated according
to the degree of tire wear while retain­
ing the same sense of rotation. Rotat­
ing, however, should be carried out
before the characteristic tire wear
pattern (shoulder wear on front
wheels and tread center wear on rear
wheels) becom es visible at a mileage
of 5 0 0 0 -1 0 000 km (3 0 0 0 -
6000 miles) as otherwise the driving
properties deteriorate.
Underinflated tires due to a slow leak
(e.g. due to a nail in the tire) may
cause damage such as tread separa­
tion, bulging, etc. Regular tire pres­
sure checks (including the spare tire)
at intervals of no more than 14 days
are therefore essential. Keep in mind
that warm tires have a higher pres­
sure than cold tires. (See tire pres­
sure chart on fuel filler door and the
last page.) If a tire constantly loses
air, it should be inspected fo r dam­
age.
Use only genuine MERCEDES-BENZ
wheel bolts (identified by Mercedes-
Star on bolt shaft).
Thoroughly clean the inner side of the
wheels any time you rotate the wheels
or wash vehicle underside.
Dented or bent rims cause tire pres­
sure loss and damage to the tire
beads. For this reason, check rims for
damage at regular intervals.
The rim flanges m ust be checked for
wear before a tire is mounted.
Remove burrs, if there are any.