2006 MERCEDES-BENZ SPRINTER Service Manual

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Page 1889 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual washer must align with the 3 raised pads (arrow) of
the B1 multiple-disc carrier (1). The cone of the
spring washer must point downwards.
(5) Insert the multiple-disc pack (6) in the outer
multiple-di

washer must align with the 3 raised pads (arrow) of
the B1 multiple-disc carrier (1). The cone of the
spring washer must point downwards.
(5) Insert the multiple-disc pack (6) in the outer
multiple-disc carrier and measure the clutch clear-
ance.
NOTE: Pay attention to the sequence of discs. If the
original clutch discs are reused, be sure to return
the disc identified on disassembly as belonging on
top of the disc spring (5) to its original location.
CAUTION: When working with double sided friction
discs, an externally lugged steel plate is installed
first, followed by a friction disc, and continuing on
until all the required discs are installed. When work-
ing with single sided friction discs, an externally
lugged disc is installed first, followed by an inter-
nally lugged disc, and continuing on until all the
required discs are installed. All single sided discs
are installed with the friction side up.
NOTE: Place new friction multiple-discs in ATF fluid
for one hour before installing.
(6) Measure B1 clutch clearance by mounting
Pressing Tool 8901 (1) (Fig. 171) on outer multiple
disc.
(7) Using a lever press (Fig. 171), compress press-
ing tool as far as the stop (then the marking ring is
still visible, see small arrow).(8) For transmissions using double sided friction
discs, use a feeler gauge to determine the play ªLº
(Fig. 172) at three points between the snap-ring (6)
and outer multiple-disc (4). During the measurement,
the snap-ring (6) must contact the upper bearing sur-
face of the groove in the outer multiple-disc carrier
(5). The correct clearance for transmissions using
double sided friction discs is 2.3-2.7 mm (0.091-0.106
in.) for two friction disc versions, 2.7-3.1 mm (0.106-
0.122 in.) for three disc versions, and 3.0-3.4 mm
(0.118-0.134 in.) for four disc versions.
(9) Adjust with snap-ring (6), if necessary. Snap-
rings are available in thicknesses of 2.6 mm (0.102
in.), 2.9 mm (0.114 in.), 3.2 mm (0.126 in.), 3.5 mm
(0.138 in.), 3.8 mm (0.150 in.), and 4.1 mm (0.162
in.).
Fig. 171 Measure B1 Clutch Clearance
1 - PRESSING TOOL 8901
2 - B1 CLUTCH OUTER CARRIER
Fig. 172 B1 Clutch Stack-up - Double Sided Discs
1 - DISC SPRING
2 - OUTER MULTIPLE DISC - 1.8 mm (0.071 IN.)
3 - OUTER MULTIPLE DISC - 2.8 mm (0.110 IN.)
4 - OUTER MULTIPLE DISC - 4.0 mm (0.158 IN.)
5 - B1 OUTER CARRIER
6 - SNAP-RING
7 - INNER MULTIPLE DISCS
8 - PISTON
21 - 146 AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATIONVA

Page 1890 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual (10) For transmissions using single sided friction
discs, use a feeler gauge to determine the play ªLº
(Fig. 173) at three points between the snap-ring (5)
and outer multiple-disc (3). During the me

Page 1891 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual HOLDING CLUTCH B2
DISASSEMBLY
(1) Remove snap ring (1) (Fig. 175).
(2) Take multiple-disc pack B2 (2) and disc spring
(3) out of the outer multiple-disc carrier B2 (8). The
outer multiple-disc carrier

Page 1892 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual (6) Separate piston guide ring (13) and the B2 pis-
ton (10) from the B3 piston (8) by blowing com-
pressed air into the bore (D) (Fig. 176).
(7) Press piston guide ring (13) out of the B2 pis-
ton (1

Page 1893 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual ASSEMBLY
(1) Check all sealing rings (2-4, 6) (Fig. 177),
replace if necessary. The rounded off edges on the
sealing rings (2, 4, 6) must point outwards.
Fig. 177 Holding Clutch B2/B3 Seals
1 - PISTON

Page 1894 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual (2) Assemble piston guide (4) (Fig. 178) and B3
piston (8) in the correct position. Verify that the
missing tooth in the B3 piston/B2 outer disc carrier
(8) is aligned with the centerline of the two t

Page 1895 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual (4) Insert piston guide ring (2) (Fig. 179). The
valve (1) in the piston guide ring must be on top.
(5) Insert disc spring (14) (Fig. 178) and spring
plate (15). Insert disc spring with the curvature

Page 1896 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual (12) Using a feeler gauge, determine the play ªLº
(Fig. 181) at three points between the snap-ring (8)
and outer multiple-disc (7).
(13) The correct clutch clearance is 1.9-2.3 mm
(0.075-0.091 in.)

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