Mercedes-Benz Sprinter / Dodge Sprinter. Manual — part 475
Fig. 16 VEHICLE LEAD DIAGNOSIS AND CORRECTION CHART
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TIRES/WHEELS
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STANDARD PROCEDURE - REPAIRING LEAKS
For proper repairing, a radial tire must be removed
from the wheel. Repairs should only be made if the
defect, or puncture, is in the tread area (Fig. 17). The
tire should be replaced if the puncture is located in
the sidewall.
Deflate tire completely before removing the tire
from the wheel. Use lubrication such as a mild soap
solution when dismounting or mounting tire. Use
tools free of burrs or sharp edges which could dam-
age the tire or wheel rim.
Before mounting tire on wheel, make sure all rust
is removed from the rim bead and repaint if neces-
sary.
Install wheel on vehicle, and tighten to proper
torque specification, (Refer to 22 - TIRES/WHEELS/
WHEELS - SPECIFICATIONS).
CLEANING
Remove the protective coating on the tires before
delivery of a vehicle. This coating may cause deteri-
oration of the tires.
To remove the protective coating, apply warm
water and let it soak for a few minutes. Afterwards,
scrub the coating away with a soft bristle brush.
Steam cleaning may also be used to remove the coat-
ing.
NOTE: DO NOT use gasoline, mineral oil, oil-based
solvent or a wire brush for cleaning.
SPECIFICATIONS
TIRES
SPECIFICATIONS
DESCRIPTION
SPECIFICATION
TIRE
P225/70R15C
LR D
TIRE
LT225/75R16
LR E
TIRE
P
SPARE TIRE CARRIER
REMOVAL
(1) Open the back doors.
(2) Loosen the bolts for the spare tire hold down
(Fig. 18).
(3) Push up on the spare tire carrier and push the
hold downs to the side and lower (Fig. 18).
(4) Remove the spare tire.
INSTALLATION
(1) Install the spare tire to the spare tire carrier
(Fig. 18).
(2) Raise the tire and wheel assmbly and hook on
the hold downs (Fig. 18).
(3) Then tighten the hold downs to secure the
spare tire in place and then close the doors.
Fig. 17 TIRE REPAIR AREA
1 - TIRE REPAIR AREA
Fig. 18 SPARE TIRE
1 - HOLD DOWNS
2 - SPARE TIRE
3 - SPARE TIRE CARRIER
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TIRES/WHEELS
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WHEELS
DESCRIPTION
Original equipment wheels are designed for the
specified Maximum Vehicle Capacity.
All models use steel or aluminum wheels.
Aluminum wheels require special balance weights
and alignment equipment.
(1) On vehicles equipped with dual rear wheels,
The slots in the wheel must be aligned to provide
access to the valve stem.
OPERATION
The wheel (Fig. 19) has raised sections between
the rim flanges and the rim well. Initial inflation of
the tire forces the bead over these raised sections. In
case of tire failure, the raised sections hold the tire
in position on the wheel until the vehicle can be
brought to a safe stop.
DIAGNOSIS AND TESTING
WHEEL INSPECTION
Inspect wheels for:
• Excessive run out
• Dents or cracks
• Damaged wheel lug nut holes
• Air Leaks from any area or surface of the rim
NOTE: Do not attempt to repair a wheel by hammer-
ing, heating or welding.
If a wheel is damaged an original equipment
replacement wheel should be used. When obtaining
replacement wheels, they should be equivalent in
load carrying capacity. The diameter, width, offset,
pilot hole and bolt circle of the wheel should be the
same as the original wheel.
WARNING:
FAILURE
TO
USE
EQUIVALENT
REPLACEMENT
WHEELS
MAY
ADVERSELY
AFFECT THE SAFETY AND HANDLING OF THE
VEHICLE.
USED
WHEELS
ARE
NOT
RECOM-
MENDED. THE SERVICE HISTORY OF THE WHEEL
MAY HAVE INCLUDED SEVERE TREATMENT OR
VERY HIGH MILEAGE. THE RIM COULD FAIL WITH-
OUT WARNING.
STANDARD PROCEDURE
STANDARD PROCEDURE - WHEEL REPLACE-
MENT
The wheel stud/lugs are designed for specific appli-
cations. They must be replaced with equivalent parts.
Do not use replacement parts of lesser quality or a
substitute design.
Before installing the wheel, be sure to remove any
build up of corrosion on the wheel mounting surfaces.
Ensure wheels are installed with good metal-to-metal
contact. Improper installation could cause loosening
of wheel nuts. This could affect the safety and han-
dling of your vehicle.
To install the wheel, first position it properly on
the mounting surface. All wheel nuts should then be
tightened just snug. Gradually tighten them in
sequence to the proper torque specification. Never
use oil or grease on studs.
Wheels must be replaced if they have:
• Excessive runout
• Bent or dented
• Leak air through welds
• Have damaged bolt holes
Wheel repairs employing hammering, heating, or
welding are not allowed.
Original equipment wheels are available through
your dealer. Replacement wheels from any other
source should be equivalent in:
• Load carrying capacity
• Diameter
• Width
• Offset
• Mounting configuration
Failure to use equivalent replacement wheels may
affect the safety and handling of your vehicle.
Replacement with used wheels is not recommended.
Their service history may have included severe treat-
ment.
STANDARD PROCEDURE - DUAL REAR WHEEL
INSTALLATION
The tires on both wheels must be completely raised
off the ground when tightening the lug nuts. This
Fig. 19 Safety Rim
1 - FLANGE
2 - RIDGE
3 - WELL
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TIRES/WHEELS
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will ensure correct wheel centering and maximum
wheel clamping.
Before installing the wheel to the wheel ring flange
make sure that all the cone washers are installed on
the wheel flange ring (Fig. 20).
The dual rear wheel lug nuts should be tightened
according to the following procedure:
• Install the inner wheel to the hub assembly.
• Install the outer wheel Make sure the valve
stems line up with each when aligning the
wheels (Fig. 21).
• Install the cone washers for the outer wheel
before installing the lug nuts (Fig. 22).
• Tighten the wheel lug nuts in the numbered
sequential pattern until they are snug tight. Then
tighten lug nuts to specified torque following same
number sequence, (Refer to 22 - TIRES/WHEELS/
WHEELS - SPECIFICATIONS).
• Tighten lug nuts in same numbered sequence a
second time to the specified torque. This will ensure
that the wheels are thoroughly mated.
• Check lug nut specified torque after 100 miles
(160 kilometers). Also after 500 miles (800 kilome-
ters) of vehicle operation.
NOTE: Wheel lug nuts should be tightened to spec-
ified torque at every maintenance interval thereafter.
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the wheel lug studs (SRW) (Fig. 24).
(3) Remove the lug nuts (DRW) On vehicles with
dual rear wheels do not pry off the front hub
cap the lug nuts must be removed in order to
remove the hub cap. (Fig. 23).
Fig. 20 WHEEL RING FLANGE CONE WASHERS
1 - WHEEL STUD
2 - CONE WASHER
Fig. 21 DUAL REAR WHEEL
1 - VALVE STEMS
2 - LUG NUTS
Fig. 22 (DRW) WHEEL CONE WASHERS
1 - CONE WASHER
2 - LUG STUD
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TIRES/WHEELS
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