Mercedes-Benz 350 SDL TURBO 1991 Owner's Manual page 79

Tire replacem ent:
Front tires should be replaced in sets.
Furtherm ore - in the eve nt of tire re­
place m ent - the spa re w h ee l, if
possible, should be used on the rear
axle.
Rim s and tire s m ust be of th e sam e
size.
For dim en sion s see "T echn ica l D a ta" .
W e recom m end th a t you b re a k in new
tires for approx. 100 km (60 m iles) at
m oderate speed. It is im p erative that
the w heel m ounting bolts be re tig h te n ­
ed after approx 1 0 0 -5 0 0 km (6 0 -
300 m iles).
O n new veh icle s retig hten ing is
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carried out during the st inspection.
R etightening is also necessary
w h en ever w h ee ls are fitted, e.g. w hen
the spare w heel is used fo r th e first
tim e o r w hen a set of w h ee ls with
M + S tire s is installed.
T igh te ning torque: 110 Nm (80 ft.lb.).
For rim and tire spe cifica tions, refer to
"Technical D ata" .
W arn in g !
W o rn , old tires can ca u s e a c c i­
den ts. If th e tire tre ad is b adly
w o rn , o r if th e tires have s u s ­
tain ed d am a g e , rep lace th em .
W h e n rep lacin g rim s, use o nly
g e n u in e M E R C E D E S -B E N Z w heel
b olts (id e n tified by M erce d e s
star) sp ec ifie d fo r th e rim typ e.
Failu re to do so can re su lt in the
b olts lo o sen in g and p o s sib ly an
ac cid en t.
R otating w heels:
T he w h ee ls can be rotated acco rding
to the d e gre e of tire w e a r w h ile
retaining th e sam e directio n of travel.
R otating, how ever, sho uld be carried
out at a m ileage of 5 0 0 0 -1 0 000 km
(3 0 0 0 -6 0 0 0 m iles), before the c h a ra c ­
te ris tic tire w e a r pattern (sho ulder
w e a r on front w h ee ls and tread cen ter
w e a r on rear w h ee ls) be com e s visible,
as oth erw ise the driving p ro pe rties
de terio rate.
Note:
T h o ro u g h ly clean the in ne r side of the
w h e e ls any tim e you rotate the w heels
or w a sh veh icle and underside.
T h e use of retread tire s is not reco m ­
m ended. R etread tire s m ay ad verse ly
a ffect the handling ch a racteristics and
sa fe ty of the vehicle.
D ented or be nt rim s cau se tire pre s­
sure loss and d a m ag e to the tire
beads. F or th is reason, che ck rim s for
da m ag e at reg ular intervals.
T he rim fla n g e s m ust be checked for
w e a r be fore a tire is m ounted. R e­
m ove burrs, if the re are any.
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