2006 MERCEDES-BENZ SPRINTER Service Manual

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Page 1761 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual increased speed to the sun gear (22) due to the con-
nection with the sun gear (23). The planetary pinion
gears (18) turn between the annulus gear (10) and
the sun gear (22). The speed of the planetar

Page 1762 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual REVERSE GEAR POWERFLOW
Fig. 12 Reverse Gear Powerflow
1 - TORQUE CONVERTER LOCK-UP CLUTCH 14 - CENTER PLANETARY CARRIER
2 - TORQUE CONVERTER TURBINE 15 - REAR PLANETARY CARRIER
3 - TORQUE CONVERTER IM

Page 1763 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual Torque from the torque converter is increased via
the input shaft (25) and all three planetary gearsets
and transferred with reversed direction of rotation to
the output shaft (26). (Fig. 12) (Fig. 13

Torque from the torque converter is increased via
the input shaft (25) and all three planetary gearsets
and transferred with reversed direction of rotation to
the output shaft (26). (Fig. 12) (Fig. 13)
Front Planetary Gear Set
The annulus gear (8) is driven by the input shaft
(25). The sun gear (21) is held against the housing by
the locked freewheel F1 (20) during acceleration and
via the engaged multiple-disc holding clutch B1 (4)
during deceleration. The planetary pinion gears (17)
turn on the fixed sun gear (21) and increase the
torque from the annulus gear (8) to the planetary
carrier (13). The planetary carrier (13) moves at a
reduced speed in the running direction of the engine.Rear Planetary Gear Set
The planetary carrier (15) is held against the hous-
ing by the engaged multiple-disc holding clutch B3
(5). The annulus gear (11) turns at a reduced speed
due to the mechanical connection to the front plane-
tary carrier (13). The planetary gears (19) turn
between the annulus gear (11) and the sun gear (23).
The direction is reversed by the held planetary car-
rier (15) so that the sun gear (23) turns in the oppo-
site direction to the running direction of the engine.
Center Planetary Gear Set
The annulus gear (10) is held against the housing
by the multiple-disc holding clutch B3 (5) via the
mechanical connection to the planetary carrier (15).
The sun gear (22) turns backwards due to the
Fig. 13 Reverse Gear Powerflow
1 - TORQUE CONVERTER LOCK-UP CLUTCH 14 - CENTER PLANETARY CARRIER
2 - TORQUE CONVERTER TURBINE 15 - REAR PLANETARY CARRIER
3 - TORQUE CONVERTER IMPELLER 16 - TORQUE CONVERTER STATOR
4 - HOLDING CLUTCH B1 17 - FRONT PLANETARY PINION GEARS
5 - HOLDING CLUTCH B3 18 - CENTER PLANETARY PINION GEARS
6 - HOLDING CLUTCH B2 19 - REAR PLANETARY PINION GEARS
7 - DRIVING CLUTCH K1 20 - FREEWHEELING CLUTCH F1
8 - FRONT PLANETARY ANNULUS GEAR 21 - FRONT PLANETARY SUN GEAR
9 - DRIVING CLUTCH K2 22 - CENTER PLANETARY SUN GEAR
10 - CENTER PLANETARY ANNULUS GEAR 23 - REAR PLANETARY SUN GEAR
11 - REAR PLANETARY ANNULUS GEAR 24 - FREEWHEELING CLUTCH F2
12 - DRIVING CLUTCH K3 25 - INPUT SHAFT
13 - FRONT PLANETARY CARRIER 26 - OUTPUT SHAFT
A - ENGINE SPEED D - SECOND GEAR RATIO
B - TRANSMISSION INPUT SPEED E - THIRD GEAR RATIO
C - FIRST GEAR RATIO F - FIXED PARTS
21 - 20 AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATIONVA

Page 1764 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual engaged multiple-disc clutch K3 (12). The planetary
gears (18) turn on the fixed annulus gear (10) and
increase the torque from the sun gear (22) to the
planetary carrier (14). The output shaft (26) c

Page 1765 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual REVERSE GEAR POWERFLOW - LIMP IN
Fig. 14 Reverse Gear Powerflow - Limp In or 4WD Low Range
1 - TORQUE CONVERTER LOCK-UP CLUTCH 14 - CENTER PLANETARY CARRIER
2 - TORQUE CONVERTER TURBINE 15 - REAR PLAN

Page 1766 of 2305

Torque from the torque converter is increased via
the input shaft (25) and all three planetary gearsets
and transferred with reversed direction of rotation to
the output shaft (26) (Fig. 14) and (Fig. 15).
Front Planetary Gear Set
The clutch K1 (7) is shifted. The planetary carrier
(13) and sun gear (21) are connected to each other as
a result. The annulus gear (8) is driven via the input
shaft (25). The planetary gear set is locked and turns
as a unit.
Rear Planetary Gear Set
The planetary carrier (15) is held against the hous-
ing by the engaged multiple-disc holding clutch B3
(5). The annulus gear (11) turns at a reduced speed
due to the mechanical connection to the front plane-
tary carrier (13). The planetary pinion gears (19)turn between the annulus gear (11) and the sun gear
(23). The direction is reversed by the held planetary
carrier (15) so that the sun gear (23) turns in the
opposite direction to the running direction of the
engine.
Center Planetary Gear Set
The annulus gear (10) is held against the housing
by the multiple-disc holding clutch B3 (5) via the
mechanical connection to the planetary carrier (15).
The sun gear (22) turns backwards due to the
engaged multiple-disc clutch K3 (12). The planetary
gears (18) turn on the fixed annulus gear (10) and
increase the torque from the sun gear (22) to the
planetary carrier (14). The output shaft (26) con-
nected to the planetary carrier (14) turns at a
reduced speed in the opposite direction to the run-
ning direction of the engine.
Fig. 15 Reverse Gear Powerflow - Limp In
1 - TORQUE CONVERTER LOCK-UP CLUTCH 14 - CENTER PLANETARY CARRIER
2 - TORQUE CONVERTER TURBINE 15 - REAR PLANETARY CARRIER
3 - TORQUE CONVERTER IMPELLER 16 - TORQUE CONVERTER STATOR
4 - HOLDING CLUTCH B1 17 - FRONT PLANETARY PINION GEARS
5 - HOLDING CLUTCH B3 18 - CENTER PLANETARY PINION GEARS
6 - HOLDING CLUTCH B2 19 - REAR PLANETARY PINION GEARS
7 - DRIVING CLUTCH K1 20 - FREEWHEELING CLUTCH F1
8 - FRONT PLANETARY ANNULUS GEAR 21 - FRONT PLANETARY SUN GEAR
9 - DRIVING CLUTCH K2 22 - CENTER PLANETARY SUN GEAR
10 - CENTER PLANETARY ANNULUS GEAR 23 - REAR PLANETARY SUN GEAR
11 - REAR PLANETARY ANNULUS GEAR 24 - FREEWHEELING CLUTCH F2
12 - DRIVING CLUTCH K3 25 - INPUT SHAFT
13 - FRONT PLANETARY CARRIER 26 - OUTPUT SHAFT
A - ENGINE SPEED D - SECOND GEAR RATIO
B - TRANSMISSION INPUT SPEED E - FIXED PARTS
C - FIRST GEAR RATIO
VAAUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 23

Page 1767 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual SHIFT GROUPS/ SHIFT SEQUENCE
1-2 Shift - First Gear Engaged
Fig. 16 First Gear Engaged
1 - 1-2/4-5 SHIFT SOLENOID 5 - 1-2/4-5 COMMAND VALVE
2 - 1-2/4-5 OVERLAP VALVE 6 - DRIVING CLUTCH K1
3 - 1-2/4-5

Page 1768 of 2305

MERCEDES-BENZ SPRINTER 2006 Service Manual The end face of the command valve (5) (Fig. 16) is
kept unpressurized via the solenoid valve for 1-2 and
4-5 shift (1). Because of the holding pressure shift
valve (4), the working pressure (p-A) is p

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