346
Operation
Tires and wheels
4
Only use sets of tires and rims of the
same type and make.
Tires must be of the correct size for
the rim.
Break in new tires for approximately
65 miles (100 km) at moderate
speeds.
Regularly check the tires and rims
for damage. Dented or bent rims can
cause tire inflation pressure loss or
damage to the tire beads.
If the vehicle is heavily loaded, check
tire inflation pressure and correct as
required.
Do not allow your tires to wear down
too far. Adhesion properties on wet
roads are sharply reduced at tread
depths under
1
/
8
in (3 mm) for sum-
mer tires and
1
/
6
in (4 mm) for win-
ter tires.
When replacing individual tires, you
should mount new tires on the front
wheels first.
!CAUTION
Vehicles not equipped with Tire Pres-
sure Monitoring System (TPMS)*:
For safety reasons, whenever you
change a tire, you must also change
the tire valve.
The following tire valves from the
company Schrader must be used on
the vehicles not equipped with
TPMS*:
TR 600 for vehicle model type
2500
TR 418 for vehicle model type
3500
Other tire valves could be damaged
by the specified tire pressures.
Important guidelines
nf_BA.book Page 346 Friday, January 25, 2008 3:53 PM