2006 MERCEDES-BENZ SPRINTER Service Manual

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Page 737 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual SPRING AND SHOCK ABSORBER
CONDITION POSSIBLE CAUSES CORRECTION
SPRING SAGS 1. Broken leaf. 1. Replace spring.
2. Spring fatigue. 2. Replace spring.
SPRING NOISE 1. Loose spring clamp bolts. 1. Tighten

Page 738 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual DESCRIPTION N´m Ft. Lbs. In. Lbs.
Lower Shock Mounting To
Rear Axle
M14 X 1.5 Bolt
(SRW&DRW)11 0 8 1 Ð
Upper Shock Mounting To
Frame
(SRW)80 59 Ð
Upper Shock Mounting To
Frame
(DRW)140 103 Ð
SHOCK

DESCRIPTION N´m Ft. Lbs. In. Lbs.
Lower Shock Mounting To
Rear Axle
M14 X 1.5 Bolt
(SRW&DRW)11 0 8 1 Ð
Upper Shock Mounting To
Frame
(SRW)80 59 Ð
Upper Shock Mounting To
Frame
(DRW)140 103 Ð
SHOCK
DIAGNOSIS AND TESTING - SHOCK
A knocking or rattling noise from a shock absorber
may be caused by movement between mounting
bushings and metal brackets or attaching compo-
nents. These noises can usually be stopped by tight-
ening the attaching nuts. If the noise persists,
inspect for damaged and worn bushings, and attach-
ing components. Repair as necessary if any of these
conditions exist.
A squeaking noise from the shock absorber may be
caused by the hydraulic valving and may be intermit-
tent. This condition is not repairable and the shock
absorber must be replaced.
The shock absorbers are not refillable or adjust-
able. If a malfunction occurs, the shock absorber
must be replaced. To test a shock absorber, hold it in
an upright position and force the piston in and out of
the cylinder four or five times. The action throughout
each stroke should be smooth and even.
The shock absorber bushings do not require any
type of lubrication. Do not attempt to stop bushing
noise by lubricating them. Grease and mineral oil-
base lubricants will deteriorate the bushing.
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the shock absorber bolt from the rear
axle (Fig. 1).
(3) Unsnap the clip for the ALB lever (left hand
side) (Fig. 1).
(4) Remove the ALB lever from the upper shock
bolt/stud (Fig. 1).
(5) Remove the shock absorber bolt from the frame
side (Fig. 1).
(6) Remove the shock absorber (Fig. 1).
INSTALLATION
(1) Install the shock absorber (Fig. 1).
(2) Install the shock absorber bolt to the frame
side (Fig. 1) Tighten to 80 N´m (59 ft.lbs.) for (SRW)
or Tighten to 140 N´m (103 ft.lbs.) for (DRW).
(3) Install the ALB lever to the upper shock bolt/
stud (left hand side only) (Fig. 1).
(4) Snap the clip for the ALB lever (Fig. 1).
(5) Install the shock absorber bolt to the rear axle
(Fig. 1) Tighten to 70 N´m (52 ft.lbs.) for (M12X1.5
bolt) or Tighten to 110 N´m (81 ft.lbs.) for (M14X1.5
bolt).
(6) Lower the vehicle.
Fig. 1 SHOCK ABSORBER (LEFT SIDE SHOWN)
1 - CLIP
2 - WASHER
3 - MOUNTING STUD/BOLT
4 - WASHER
5 - NUT
6 - FRAME
7 - SHOCK ABSORBER
8 - BOLT
9 - NUT
10 - ALB LEVER
VAREAR 2 - 13

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MERCEDES-BENZ SPRINTER 2006 Service Manual SPRING
DESCRIPTION
The rear suspension system uses a multi-leaf
springs and a solid drive axle. The forward end of the
springs are mounted to the body rail hangers
through rubber bushings. The rearwar

SPRING
DESCRIPTION
The rear suspension system uses a multi-leaf
springs and a solid drive axle. The forward end of the
springs are mounted to the body rail hangers
through rubber bushings. The rearward end of the
springs are attached to the body by the use of shack-
les. The spring and shackles use rubber bushings.
OPERATION
The springs control ride quality and maintain vehi-
cle ride height. The shackles allow the springs to
change their length as the vehicle moves over various
road conditions.
REMOVAL
REMOVAL - (SRW)
(1) Raise and support the vehicle.
(2) Support the rear axle.
(3) Remove the U-bolt and spring plate (Fig. 2).
(4) Remove the spring from the front spring
bracket (Fig. 2).
(5) Remove the rear spring with the spring shackle
from the spring bracket (Fig. 2).
(6) Lower the rear axle and remove the rear
spring.
(7) Remove the spring shackle from the spring (if
needed) (Fig. 2).
REMOVAL - (DRW)
(1) Raise and support the vehicle.
(2) Support the rear axle.
(3) Remove the U-bolt and spring plate (Fig. 3).
(4) Remove the spring from the front spring
bracket (Fig. 3).
(5) Remove the rear spring with the spring shackle
from the spring bracket (Fig. 3).
(6) Lower the rear axle and remove the rear
spring.
(7) Remove the spring shackle from the spring (if
needed) (Fig. 3).
INSTALLATION
INSTALLATION - (SRW)
NOTE: Larger spring bushing goes toward the front.
(1) Install the spring shackle to the spring (if
removed) (Fig. 2). Tighten to 90 N´m (66 ft. lbs.).
(2) Install the spring to the front spring bracket
(Fig. 2). Tighten to 95 N´m (70 ft. lbs.).
(3) Install the spring to the rear spring bracket
(Fig. 2). Tighten to 85 N´m (63 ft. lbs.).
(4) Raise the rear axle and attach the spring plate
and U-bolts (Fig. 2). Tighten to 170 N´m (125 ft. lbs.).
(5) Lower the vehicle.
Fig. 2 REAR LEAF SPRING WITH SINGLE REAR
WHEELS
1 - NUT
2 - LEAF SPRING
3 - U-BOLTS
4 - PLATE
5 - SPRING BOLT
6 - SHACKLE BOLT
7 - SPRING SHACKLE
8 - U-BOLT NUTS
Fig. 3 REAR LEAF SPRING WITH DUAL REAR
WHEELS
1 - U-BOLTS
2 - NUT
3 - BOLT
4 - SPRING SHACKLE
5 - U-BOLT MOUNTING NUT
6 - U-BOLT BRACKET ALIGNING PLATE
7 - LEAF SPRING
2 - 14 REARVA

Page 740 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual INSTALLATION - (DRW)
NOTE: Larger spring bushing goes toward the front.
(1) Install the spring shackle to the spring (if
removed) (Fig. 3). Tighten to 185 N´m (136 ft. lbs.).
(2) Install the spring t

Page 741 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual STABILIZER LINK
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the stabilizer links at the bar (Fig. 4).
(3) Remove the stabilizer link at the frame.
INSTALLATION
(1) Install the stabilizer bar

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MERCEDES-BENZ SPRINTER 2006 Service Manual WHEEL ALIGNMENT
TABLE OF CONTENTS
page page
WHEEL ALIGNMENT
DESCRIPTION........................17
DIAGNOSIS AND TESTING - PRE-ALIGNMENT
INSPECTION.........................17STANDARD PROCEDURE - TOE
AD

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MERCEDES-BENZ SPRINTER 2006 Service Manual SUSPENSION AND STEERING SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
FRONT END NOISE 1. Loose or worn wheel bearing. 1. Replace wheel bearing.
2. Loose or worn steering or sus-
pension compon

SUSPENSION AND STEERING SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
FRONT END NOISE 1. Loose or worn wheel bearing. 1. Replace wheel bearing.
2. Loose or worn steering or sus-
pension components.2. Tighten or replace components as nec-
essary.
3. Loose or worn steering or sus-
pension components.3. Tighten or replace components as nec-
essary.
EXCESSIVE PLAY IN
STEERING1. Loose or worn wheel bearing. 1. Replace wheel bearing.
2. Loose or worn steering or sus-
pension components.2. Tighten or replace components as nec-
essary.
3. Loose or worn steering gear. 3. Replace steering gear.
FRONT WHEELS SHIMMY 1. Loose or worn wheel bearing. 1. Replace wheel bearing.
2. Loose or worn steering or sus-
pension components.2. Tighten or replace components as nec-
essary.
3. Tires worn or out of balance. 3. Replace or balance tires.
4. Alignment. 4. Align vehicle to specifications.
VEHICLE INSTABILITY 1. Loose or worn wheel bearing. 1. Replace wheel bearing.
2. Loose or worn steering or sus-
pension components.2. Tighten or replace components as nec-
essary.
3. Tire pressure. 3. Adjust tire pressure.
4. Alignment. 4. Align vehicle to specifications.
EXCESSIVE STEERING
EFFORT1. Loose or worn steering gear. 1. Replace steering gear.
2. Column coupler binding. 2. Replace coupler.
3. Tire pressure. 3. Adjust tire pressure.
4. Alignment. 4. Align vehicle to specifications.
VEHICLE PULLS TO ONE
SIDE1. Tire pressure. 1. Adjust tire pressure.
2. Tire. 2. Criss-Cross Front Tires.
3. Alignment. 3. Align vehicle to specifications.
4. Loose or worn steering or sus-
pension components.4. Tighten or replace components as nec-
essary.
5. Radial tire lead. 5. Rotate or replace tire as necessary.
6. Brake pull. 6. Repair brake as necessary.
7. Weak or broken spring. 7. Replace spring.
STANDARD PROCEDURE - TOE ADJUSTMENT
CAMBER AND CASTER ARE NOT ADJUSTABLE
(TOE ONLY)..
The wheel toe position adjustment is the final
adjustment.
(1) Start the engine and turn wheels both ways
before straightening the wheels. Secure the steering
wheel with the front wheels in the straight-ahead
position.(2) Loosen the tie rod jam nuts.
NOTE: Each front wheel should be adjusted for
one-half of the total toe position specification. This
will ensure the steering wheel will be centered
when the wheels are positioned straight-ahead.
(3) Adjust the wheel toe position by turning the
inner tie rod as necessary.
2 - 18 WHEEL ALIGNMENTVA

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MERCEDES-BENZ SPRINTER 2006 Service Manual (4) Tighten the tie rod jam nut to 50 N´m (37 ft.
lbs.).
(5) Verify the specifications
(6) Turn off engine.
SPECIFICATIONS
FRONT SPECIFICATIONS
DESCRIPTION FRONT SPECIFICATION
Toe-In 0É ( 0.16É)
C

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