2006 MERCEDES-BENZ SPRINTER Service Manual

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Page 753 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual Fig. 8 2 PIECE PROPELLER SHAFT
1 - FLANGE BOLT 6 - NUT
2 - BEARING 7 - BRACKET
3 - PROPELLER SHAFT 8 - RETAINING BRACKET
4 - REAR AXLE 9 - COLLARED BOLT
5 - CABLE BRACKET 10 - TRANSMISSION
3 - 8 PROPE

Page 754 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual (6) Remove shaft from the vehicle.
INSTALLATION
(1) Install propeller shaft intermediate bearing/
bearings to support and tighten nuts to 105 N´m (77
ft. lbs.).
(2) Install propeller shaft intermedia

Page 755 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual (4) Pull apart propeller shaft.
(5) Remove snap-ring (Fig. 12).
NOTE: If center bearing is equipped with a round
flange remove bolt from the middle of the flange.
(6) Pull off center bearing with a Be

Page 756 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual NOTE: If center bearing is equipped with a round
flange install new bolt in middle of the flange and
tighten to 95 N´m (70 ft. bls.).
(2) Install snap-ring.
(3) Coat propeller shaft spline with unive

Page 757 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual REAR AXLE
TABLE OF CONTENTS
page page
REAR AXLE
DIAGNOSIS AND TESTING................12
STANDARD PROCEDURE - DRAIN AND FILL . . 13
REMOVAL.............................14
INSTALLATION..................

REAR AXLE
TABLE OF CONTENTS
page page
REAR AXLE
DIAGNOSIS AND TESTING................12
STANDARD PROCEDURE - DRAIN AND FILL . . 13
REMOVAL.............................14
INSTALLATION.........................16
SPECIFICATIONS.......................18
SPECIAL TOOLS.......................19
SHAFT-AXLE SINGLE REAR WHEEL
REMOVAL-SINGLE REAR WHEEL..........23
INSTALLATION-SINGLE REAR WHEEL.......24
BEARING/SEAL-AXLE
REMOVAL.............................24
INSTALLATION.........................26
SHAFT-AXLE DUAL REAR WHEELS
REMOVAL-DUAL REAR WHEEL............27
INSTALLATION-DUAL REAR WHEEL........28
BEARING/SEAL-AXLE HUB
REMOVAL.............................28
INSTALLATION.........................29DIFFERENTIAL
REMOVAL.............................31
DISASSEMBLY
DISASSEMBLY-SINGLE REAR WHEEL.....32
DISASSEMBLY-DUAL REAR WHEEL.......33
ASSEMBLY
ASSEMBLY-SINGLE REAR WHEEL........34
ASSEMBLY-DUAL REAR WHEEL..........36
INSTALLATION.........................37
BEARINGS-DIFFERENTIAL CASE
REMOVAL.............................38
INSTALLATION.........................38
SEAL-PINION
REMOVAL.............................39
INSTALLATION.........................40
GEAR-PINION/RING
REMOVAL.............................41
INSTALLATION.........................42
REAR AXLE
DIAGNOSIS AND TESTING
NOTE: Axle seals, axle bearings, pinion seals and
differential cover are the only serviceble compo-
nents. If differential is damaged/noisy the axle must
be replaced.
GEAR NOISE
Axle gear noise can be caused by insufficient lubri-
cant, incorrect backlash, incorrect pinion depth, tooth
contact, worn/damaged gears, or the carrier housing
not having the proper offset and squareness.
Gear noise usually happens at a specific speed
range. The noise can also occur during a specific type
of driving condition. These conditions are accelera-
tion, deceleration, coast, or constant load.
When road testing, first warm-up the axle fluid by
driving the vehicle at least 5 miles and then acceler-
ate the vehicle to the speed range where the noise is
the greatest. Shift out-of-gear and coast through the
peak-noise range. If the noise stops or changes
greatly:
²Check for insufficient lubricant.
²Incorrect ring gear backlash.
²Gear damage.
Differential side gears and pinions can be checked
by turning the vehicle. They usually do not causenoise during straight-ahead driving when the gears
are unloaded. The side gears are loaded during vehi-
cle turns. A worn pinion shaft can also cause a snap-
ping or a knocking noise.
BEARING NOISE
The axle shaft, differential and pinion bearings can
all produce noise when worn or damaged. Bearing
noise can be either a whining, or a growling sound.
Pinion bearingshave a constant-pitch noise. This
noise changes only with vehicle speed. Pinion bearing
noise will be higher pitched because it rotates at a
faster rate. Drive the vehicle and load the differen-
tial. If bearing noise occurs, the rear pinion bearing
is the source of the noise. If the bearing noise is
heard during a coast, the front pinion bearing is the
source.
Differential bearings usually produce a low pitch
noise. Differential bearing noise is similar to pinion
bearing noise. The pitch of differential bearing noise
is also constant and varies only with vehicle speed.
Axle shaft bearingsproduce noise and vibration
when worn or damaged. The noise generally changes
when the bearings are loaded. Road test the vehicle.
Turn the vehicle sharply to the left and to the right.
This will load the bearings and change the noise
level. Where axle bearing damage is slight, the noise
is usually not noticeable at speeds above 30 mph.
3 - 12 REAR AXLEVA

Page 758 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual LOW SPEED KNOCK
Low speed knock is generally caused by a worn
U-joint or by worn side-gear thrust washers. A worn
pinion shaft bore will also cause low speed knock.
VIBRATION
Vibration at the rear of

Page 759 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual REMOVAL
Fig. 2 SINGLE REAR WHEEL AXLE
1 - REAR SPRING 12 - WEAR INDICATOR CONNECTOR
2 - U-BRACKET 13 - BRAKE HOSE
3 - PLATE 14 - WHEEL BOLT
4 - NUT 15 - BOLT
5 - BRAKE CABLE 16 - NUT
6 - REAR AXLE 17

Page 760 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual (1) Raise and support the vehicle.
(2) Position a suitable lifting device under the axle
and secure axle to device.
(3) Remove wheels and tires.
(4) Unplug wear indicator cable (Fig. 2) and (Fig.
3).

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