height adjustment 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
ADJUSTMENT........................18
SPECIFICATIONS.....................19
WHEEL ALIGNMENT
DESCRIPTION
NOTE: Camber and Caster are not adjustable on
this vehicle. (TOE ONLY).
NOTE: Suspension components with rubber/ure-
thane bushings should be tightened with the vehi-
cle at normal ride height. It is important to have the
springs supporting the weight of the vehicle when
the fasteners are torqued. If springs are not at their
normal ride position, vehicle ride comfort could be
affected and premature bushing wear may occur.
Wheel alignment involves the correct positioning of
the wheels in relation to the vehicle. The positioning
is accomplished through suspension and steering
linkage adjustments. An alignment is considered
essential for efficient steering, good directional stabil-
ity and to minimize tire wear. The most important
measurements of an alignment are caster, camber
and toe (Fig. 1).
CAUTION: Never attempt to modify suspension or
steering components by heating or bending.
DIAGNOSIS AND TESTING - PRE - ALIGNMENT
INSPECTION
Before starting wheel alignment, the following
inspection and necessary corrections must be com-
pleted. Refer to Suspension and Steering System
Diagnosis Chart below for additional information.
(1) Inspect tires for size, air pressure and tread
wear.
(2) Inspect front wheel bearings for wear.
(3) Inspect front wheels for excessive radial or lat-
eral runout and balance.
(4) Inspect ball studs, linkage pivot points and
steering gear for looseness, roughness or binding.
(5) Inspect suspension components for wear and
noise.
(6) Road test the vehicle.
Fig. 1 Wheel Alignment Measurements
1 - FRONT OF VEHICLE
2 - STEERING AXIS INCLINATION
3 - PIVOT POINT
4 - TOE-IN
VAWHEEL ALIGNMENT 2 - 17

POWER BRAKE BOOSTER
DESCRIPTION.........................19
OPERATION...........................19
REMOVAL.............................20
INSTALLATION.........................20
ROTORS
REMOVAL
REMOVAL - FRONT (SRW)..............20
REMOVAL - REAR (SRW)...............20
REMOVAL - FRONT (DRW)..............21
REMOVAL - REAR (DRW)...............21
INSTALLATION
INSTALLATION - FRONT (SRW)..........22
INSTALLATION - REAR (SRW)...........22
INSTALLATION - FRONT (DRW)..........22
INSTALLATION - REAR (DRW)...........22
SUPPORT PLATE
REMOVAL - REAR......................23
INSTALLATION - REAR...................23
PARKING BRAKE
SPECIFICATIONS
TORQUE CHART......................23
SPECIAL TOOLS
PARK BRAKE........................24
CABLE TENSIONER
REMOVAL.............................24INSTALLATION.........................24
CABLES
REMOVAL
REMOVAL - FRONT....................24
REMOVAL - REAR.....................25
INSTALLATION
INSTALLATION - FRONT................25
INSTALLATION - REAR.................26
ADJUSTMENTS
ADJUSTMENT - PARKING BRAKE CABLES . 26
LEVER
REMOVAL.............................26
INSTALLATION.........................27
SHOES
REMOVAL
REMOVAL - (SRW)....................27
REMOVAL - (DRW)....................27
CLEANING - REAR DRUM IN HAT BRAKE....28
INSTALLATION
INSTALLATION - (SRW).................28
INSTALLATION - (DRW).................28
ADJUSTMENTS
ADJUSTMENT........................28
BRAKES - BASE
DIAGNOSIS AND TESTING - BASE BRAKE SYS-
TEM
Base brake components consist of the brake pads,
calipers, brake drum in hat rotor in the rear, rotors,
brake lines, master cylinder, booster, and parking
brake components.
Brake diagnosis involves determining if the prob-
lem is related to a mechanical, hydraulic, or vacuum
operated component.
The first diagnosis step is the preliminary check.
PRELIMINARY BRAKE CHECK
(1) Check condition of tires and wheels. Damaged
wheels and worn, damaged, or underinflated tires
can cause pull, shudder, vibration, and a condition
similar to grab.
(2) If complaint was based on noise when braking,
check suspension components. Jounce front and rear
of vehicle and listen for noise that might be caused
by loose, worn or damaged suspension or steering
components.
(3) Inspect brake fluid level and condition. Note
that the brake reservoir fluid level will decrease in
proportion to normal lining wear.Also note that
brake fluid tends to darken over time. This is
normal and should not be mistaken for contam-
ination.(a) If fluid level is abnormally low, look for evi-
dence of leaks at calipers, wheel cylinders, brake
lines, and master cylinder.
(b) If fluid appears contaminated, drain out a
sample to examine. System will have to be flushed
if fluid is separated into layers, or contains a sub-
stance other than brake fluid. The system seals
and cups will also have to be replaced after flush-
ing. Use clean brake fluid to flush the system.
(4) Check parking brake operation. Verify free
movement and full release of cables and pedal. Also
note if vehicle was being operated with parking
brake partially applied.
(5) Check brake pedal operation. Verify that pedal
does not bind and has adequate free play. If pedal
lacks free play, check pedal and power booster for
being loose or for bind condition. Do not road test
until condition is corrected.
(6) Check booster vacuum check valve and hose.
(7) If components checked appear OK, road test
the vehicle.
ROAD TESTING
(1) If complaint involved low brake pedal, pump
pedal and note if it comes back up to normal height.
(2) Check brake pedal response with transmission
in Neutral and engine running. Pedal should remain
firm under constant foot pressure.
5 - 2 BRAKES - BASEVA