2006 MERCEDES-BENZ SPRINTER automatic transmission

ASSEMBLY
(1) Install piston (6) (Fig. 83) in the outer multi-
ple-disc carrier (1). Check sealing rings (4 and 5),
replace if necessary. The rounded off edges of the
sealing rings must point outwards.
(2) Insert disc spring (7) (Fig. 83). Insert disc
spring with the curvature towards the piston.
(3) Insert spring plate (8). Insert spring plate with
the curvature towards the sun gear. Check sealing
ring (9), replace if necessary.
Fig. 83 Input Clutch K1 Components
1 - K1 OUTER DISC CARRIER 7 - DISC SPRING
2 - FREEWHEELING CLUTCH F1 8 - SPRING PLATE
3 - SNAP-RING 9 - SPRING PLATE SEALING RING
4 - OUTER DISC CARRIER SEALING RING 10 - SNAP-RING
5 - PISTON SEALING RING 11 - SNAP-RING
6 - PISTON 12 - MULTIPLE DISC PACK - REFER TO TEXT FOR CORRECT
ASSEMBLY ORDER
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(4) Place Multi-use Spring Compressor 8900 (2)
(Fig. 84) on spring plate and compress the spring
until the groove of the snap-ring (1) is exposed.
(5) Insert snap-ring (1) (Fig. 83). After installing,
check snap-ring for correct seat.
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 externallylugged 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: 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 spring plate (8) to its original location.
NOTE: Place new friction multiple-discs in ATF fluid
for one hour before installing.
(6) Insert multiple-disc pack (12) in the outer mul-
tiple-disc carrier.
(7) Insert snap-ring (11).
(8) Measure the K1 clutch pack clearance by
mounting Pressing Tool 8901 (1) (Fig. 85) on outer
multiple disc.
(9) Using a lever press, compress pressing tool as
far as the stop (then the marking ring is still visible,
see small arrow).
(10) For transmissions using double sided friction
discs, use a feeler gauge to determine the play ªLº
(Fig. 86) at three points between the snap-ring (5)
and outer multiple-disc (3).
(11) During the measurement the snap-ring (5)
must contact the upper bearing surface of the groove
in the outer multiple-disc carrier (4).
(12) The correct clutch clearance for transmissions
with double sided friction discs is 2.7-3.1 mm (0.106-
0.122 in.) for three friction disc versions, 3.0-3.4 mm
Fig. 84 Compress the Disc Spring
1 - SNAP-RING
2 - MULTI-USE SPRING COMPRESSOR 8900
Fig. 85 Measure K1 Clutch Clearance
1 - PRESSING TOOL 8901
2 - K1 OUTER DISC CARRIER
Fig. 86 Input Clutch K1 Stack-up - Double Sided
Discs
1 - OUTER MULTIPLE DISC - 1.8MM (0.071 IN.)
2 - OUTER MULTIPLE DISC - 2.8MM (0.110 IN.)
3 - OUTER MULTIPLE DISC - 4.0MM (0.158 IN.)
4 - K1 OUTER DISC CARRIER
5 - SNAP-RING
6 - FRICTION DISCS
7 - DISC SPRING
8 - PISTON
VAAUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 95

(0.118-0.134 in.) for four disc versions, 3.3-3.7 mm
(0.130-0.146 in.) for five disc versions, and 3.6-4.0
mm (0.142-0.158 in.) for six disc versions.
(13) Adjust with snap-ring (5), 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.).
(14) Insert front freewheeling clutch F1 (2) and fit
snap-ring (3). The freewheeling clutch F1 (2) must be
installed in the direction of the arrow.
(15) For transmissions using single sided friction
discs, use a feeler gauge to determine the play ªLº
(Fig. 87) at three points between the snap-ring (4)
and outer multiple-disc (2).
(16) During the measurement the snap-ring (4)
must contact the upper bearing surface of the groove
in the outer multiple-disc carrier (3).
(17) The correct clutch clearance for transmissions
with single sided friction discs is 2.4-2.8 mm (0.095-
0.110 in.) for six friction disc versions, 2.6-3.0 mm
(0.102-0.118 in.) for eight disc versions, 2.8-3.2 mm
(0.110-0.126 in.) for ten disc versions, and 2.9-3.3 mm
(0.114-0.130 in.) for twelve disc versions.
(18) Adjust with snap-ring (4), 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.).
(19) Insert front freewheeling clutch F1 (2) and fit
snap-ring (3). The freewheeling clutch F1 (2) must be
installed in the direction of the arrow.
Fig. 87 Input Clutch K1 Stack-up - Single Sided
Discs
1 - OUTER MULTIPLE DISCS
2 - OUTER MULTIPLE DISC - 4.0MM (0.158 IN.)
3 - K1 OUTER DISC CARRIER
4 - SNAP-RING
5 - INNER MULTIPLE DISCS
6 - DISC SPRING
7 - PISTON
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INPUT CLUTCH K2
DISASSEMBLY
(1) Remove snap-ring (19) from the K1 inner mul-
tiple-disc carrier with integrated front gear set (2)
and take off hollow gear (18).
(2) Remove input shaft with clutch K2 (5) (Fig.
88).
(3) Remove needle thrust bearing (3).
(4) Remove snap-ring (17) (Fig. 88) from K2 outer
multiple-disc carrier.
(5) Take out multiple-disc pack (16). Note which
clutch disc is removed just prior to the disc spring
(14) for re-assembly. If the clutch discs are re-used,
this disc must be returned to its original position on
top of the disc spring.
(6) Take out disc spring (14) (Fig. 88).
Fig. 88 Input Clutch K2 Components
1 - NEEDLE ROLLER BEARING 11 - SPRING RETAINER SEALING - O-RING
2 - K1 INNER DISC CARRIER WITH INTEGRATED FRONT GEAR
SET12 - SPRING RETAINER
3 - THRUST BEARING 13 - SNAP-RING
4 - TORLON SEAL RINGS 14 - DISC SPRING
5 - INPUT SHAFT AND K2 CLUTCH 15 - EXTERNALLY TOOTHED PLATE - 1.8 MM (0.071 IN.)
6 - PISTON OUTER SEAL RING - O-RING 16 - MULTIPLE DISC PACK
7 - PISTON INNER SEAL RING 17 - SNAP-RING
8 - THRUST WASHER 18 - HOLLOW GEAR
9 - PISTON 19 - SNAP-RING
10 - DISC SPRING
VAAUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 97

(7) Fit Multi-use Spring Compressor 8900 (1) (Fig.
89) onto spring retainer (12) and press until snap-
ring (2) is released.
(8) Remove snap-ring (2) (Fig. 88).
(9) Take out disc spring (10) and pull piston (9) out
of outer multiple-disc carrier.
Fig. 89 Compress K2 Clutch Spring
1 - MULTI-USE SPRING COMPRESSOR 8900
2 - SNAP-RING
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ASSEMBLY
(1) Install piston (9) (Fig. 90) in outer multiple-
disc carrier. Inspect seals (6 and 7), replace if neces-
sary. The rounded edges of the inner piston seal (7)
must point to the outside.
(2) Insert disk spring (10) and spring retainer (12).
Insert disk spring (10) with curved side pointing
toward spring retainer (12). Inspect seal (11) (Fig.
90), replace if necessary.
Fig. 90 Input Clutch K2 Components
1 - NEEDLE ROLLER BEARING 11 - SPRING RETAINER SEALING - O-RING
2 - K1 INNER DISC CARRIER WITH INTEGRATED FRONT GEAR
SET12 - SPRING RETAINER
3 - THRUST BEARING 13 - SNAP-RING
4 - TORLON SEAL RINGS 14 - DISC SPRING
5 - INPUT SHAFT AND K2 CLUTCH 15 - EXTERNALLY TOOTHED PLATE - 1.8 MM (0.071 IN.)
6 - PISTON OUTER SEAL RING - O-RING 16 - MULTIPLE DISC PACK
7 - PISTON INNER SEAL RING 17 - SNAP-RING
8 - THRUST WASHER 18 - HOLLOW GEAR
9 - PISTON 19 - SNAP-RING
10 - DISC SPRING
VAAUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 99

(3) Place Multi-use Spring Compressor 8900 (1)
(Fig. 91) on spring plate and press until the groove
(2) of the snap-ring is exposed.
(4) Insert snap-ring.
(5) Insert disk spring (14).
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 (14) to its original location.
(6) Insert multiple-disk set (16) into outer multi-
ple-disk carrier.
(7) Fit snap-ring (17).(8) Measure K2 clutch clearance by mounting
Pressing Tool 8901 (1) (Fig. 92) on outer multiple
disc.
(9) Using a lever press, compress pressing tool as
far as the stop (then the marking ring is still visible,
see small arrow).
(10) Using a feeler gauge, determine the play ªLº
(Fig. 93) at three points between the snap-ring (6)
and outer multiple-disc (4).
Fig. 91 Compress K2 Clutch Spring
1 - MULTI-USE SPRING COMPRESSOR 8900
2 - SNAP-RING
Fig. 92 Measure K2 Clutch Clearance
1 - PRESSING TOOL 8901
2 - K1 INNER DISC CARRIER
Fig. 93 Input Clutch K2 Stack-up
1 - DISC SPRING
2 - OUTER MULTIPLE DISC - 1.8 MM (0.071 IN.)
3 - OUTER MULTIPLE DISC - 3.5 MM (0.138 IN.)
4 - OUTER MULTIPLE DISC - 4.0 MM (0.158 IN.)
5 - K2 OUTER DISC CARRIER
6 - SNAP-RING
7 - FRICTION DISCS
8 - PISTON
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(11) During the measurement the snap-ring (6)
must contact the upper bearing surface of the groove
in the outer multiple-disc carrier.
(12) The correct clutch clearance is 2.3-2.7 mm
(0.091-0.106 in.) for three friction disc versions, 2.4-
2.8 mm (0.095-0.110 in.) for four disc versions, 2.5-2.9
mm (0.099-0.114 in.) for five disc versions, and 2.7-
3.1 mm (0.106-0.122 in.) for six disc versions.
(13) Adjust with snap-ring (6), if necessary. Snap-
rings are available in thicknesses of 2.3 mm (0.091
in.), 2.6 mm (0.102 in.), 2.9 mm (0.114 in.), 3.2 mm
(0.126 in.), 3.5 mm (0.138 in.), and 3.8 mm (0.150
in.).
(14) Insert axial needle bearing (3) into K1 inner
multiple-disk carrier. Insert axial needle bearing (3)
with a little grease to prevent it slipping.
(15) Install input shaft in K1 inner multiple-disc
carrier with integrated front gear set (2).
(16) Fit internally-geared wheel (18) and install
snap-ring (19). Pay attention to installation position.
VAAUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 101