2006 MERCEDES-BENZ SPRINTER lock

REMOVAL
(1) Drain transmission oil by unscrewing oil drain
plug (8) (Fig. 122).
NOTE: If the transmission fluid is burnt or contains
abraded particles, the oil cooler lines and oil cooler
must be flushed out.(2) Move selector lever to position ªPº.
(3) Raise vehicle.
(4) Remove bolt (3) (Fig. 123) and screw (1) hold-
ing the heat shield (2) to the transmission.
(5) Disconnect 13-pin plug connector (1) (Fig. 124).
Turn bayonet lock of guide bushing (2) anti-clock-
wise.
(6) Loosen guide bushing (2) and remove from
transmission housing.
Fig. 122 Remove Electrohydraulic Unit
1 - HEAT SHIELD
2 - ELECTROHYDRAULIC UNIT
3 - BOLT
4 - OIL FILTER
5 - OIL PAN
6 - CLAMPING ELEMENT
7 - BOLT
8 - DRAIN PLUG
9 - DRAIN PLUG GASKET
10 - 13-PIN PLUG CONNECTOR
11 - BOLT
12 - GUIDE BUSHING
Fig. 123 Remove Heat Shield
1 - SCREW
2 - HEAT SHIELD
3 - BOLT
Fig. 124 Remove Wiring Connector Plug
1 - PLUG CONNECTOR
2 - GUIDE BUSHING
21 - 120 AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATIONVA

(7) Detach oil pan (5) (Fig. 125).
(8) Remove oil filter (4).
(9) Unscrew Torx socket bolts (3) and remove elec-
trohydraulic control module (2).
DISASSEMBLY
(1) Remove electrohydraulic unit from the vehicle.
(Refer to 21 - TRANSMISSION/AUTOMATIC
TRANSMISSION - NAG1/ELECTROHYDRAULIC
UNIT - REMOVAL)
(2) Remove solenoid caps (1, 2) (Fig. 126).
(3) Unscrew Torxtsocket bolts (3, 4) (Fig. 126).
NOTE: Pay attention to the different lengths of the
TorxTsocket bolts.
(4) Remove leaf springs (5).
(5) Withdraw solenoid valves (6 - 11) from shift
plate (13).
NOTE: Check O-rings on solenoid valves for dam-
age and replace if necessary.
(6) Bend away retaining lug on stiffening rib on
transmission oil temperature sensor.
(7) Remove electrohydraulic control module (12)
from the shift plate (13).
Fig. 125 Remove Electrohydraulic Unit
1 - HEAT SHIELD
2 - ELECTROHYDRAULIC UNIT
3 - BOLT
4 - OIL FILTER
5 - OIL PAN
6 - CLAMPING ELEMENT
7 - BOLT
8 - DRAIN PLUG
9 - DRAIN PLUG GASKET
10 - 13-PIN PLUG CONNECTOR
11 - BOLT
12 - GUIDE BUSHINGFig. 126 Electrical Unit Components
1 - SOLENOID CAP
2 - SOLENOID CAP
3 - BOLT - M6X32
4 - BOLT - M6X30
5 - LEAF SPRING
6 - MODULATING PRESSURE REGULATING SOLENOID VALVE
7 - SHIFT PRESSURE REGULATING SOLENOID
8 - 3-4 SHIFT SOLENOID
9 - TORQUE CONVERTER LOCK-UP SOLENOID
10 - 1-2/4-5 SHIFT SOLENOID
11 - 2-3 SHIFT SOLENOID
12 - ELECTRICHYDRAULIC CONTROL MODULE
13 - SHIFT PLATE
VAAUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 121

(8) Note the locations of the major shift valve
group components for assembly reference. (Fig. 127)
A - Operating and Lubricating Pressure Regulating
valves and 2-3 Overlap valve
B - 1-2/4-5 Shift Group and Shift, Shift Valve, and
Regulating Valve Pressure Regulating Valves
C - 3-4 Shift Group
D - 2-3 Shift Group, TCC Lock-up, and B2 Regu-
lating ValvesNOTE: Pay great attention to cleanliness for all
work on the shift plate. Fluffy cloths must not be
used. Leather cloths are particularly good. After dis-
mantling, all parts must be washed and blown out
with compressed-air, noting that parts may be
blown away.
(9) Unbolt leaf spring (5) (Fig. 128).
(10) Unscrew Torxtbolts (1) (Fig. 128).
(11) Remove valve housing (2) from valve body (4)
(Fig. 128).
(12) Remove sealing plate (3).
Fig. 127 Shift Valve Group Locations
A - OPERATING AND LUBRICATING PRESSURE REGULATING
VALVES AND 2-3 OVERLAP VALVE
B - 1-2/4-5 SHIFT GROUP AND SHIFT, SHIFT VALVE, AND REG-
ULATING VALVE PRESSURE REGULATING VALVES
C - 3-4 SHIFT GROUP
D - 2-3 SHIFT GROUP, TCC LOCK-UP AND B2 REGULATING
VA LV E S
Fig. 128 Shift Plate Components
1-BOLTS-29
2 - VALVE HOUSING
3 - SEALING PLATE
4 - VALVE BODY
5 - LEAF SPRING
Fig. 129 Solenoid Valve Strainer Locations
1 - SOLENOID VALVE STRAINERS
21 - 122 AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATIONVA

(13) Remove the strainers (1, 2) for the modulating
pressure and shift pressure control solenoid valves
(Fig. 129) from the valve housing.
(14) Remove the strainer (1) (Fig. 130) in the inlet
to torque converter lock-up control solenoid valve.
NOTE: A total of 12 valve balls are located in the
valve body, four made from plastic (4) and eight
from steel (1, 3).
(15) Note the location of all check balls (1, 3, 4)
(Fig. 131) and the central strainer (2) for re-installa-
tion. Remove all check balls (1, 3, 4) and the central
strainer (2).
Fig. 130 Converter Lock-up Solenoid Valve Strainer
Location
1 - CONVERTER LOCK-UP SOLENOID STRAINER
Fig. 131 Check Balls and Strainer Location
1 - STEEL CHECK BALLS
2 - CENTRAL STRAINER
3 - STEEL CHECK BALLS
4 - PLASTIC CHECK BALLS
5 - PLAIN DOWEL PIN
VAAUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 123

(16) Remove the screws holding the side covers to
the valve body and valve housing.
(17) Remove all valves and springs from the valve
body (1) (Fig. 132). Check all valves for ease of move-
ment and shavings.
NOTE: The sleeves and pistons of the overlap reg-
ulating valves must not be mixed up.
Fig. 132 Valve Body Components
1 - VALVE BODY 8 - SHIFT VALVE PRESSURE REGULATING VALVE
2 - 1-2/4-5 COMMAND VALVE 9 - B2 SHIFT VALVE
3 - 1-2/4-5 HOLDING PRESSURE SHIFT VALVE 10 - 2-3 HOLDING PRESSURE SHIFT VALVE
4 - 1-2/4-5 SHIFT PRESSURE SHIFT VALVE 11 - 2-3 COMMAND VALVE
5 - 1-2/4-5 OVERLAP REGULATING VALVE, SLEEVE, AND PIS-
TON12 - 2-3 SHIFT PRESSURE SHIFT VALVE
6 - SHIFT PRESSURE REGULATING VALVE 13 - TCC LOCK-UP REGULATING VALVE
7 - REGULATING VALVE PRESSURE REGULATING VALVE 14 - TCC DAMPER VALVE - if equipped
21 - 124 AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATIONVA

NOTE: The sleeves and pistons of the overlap reg-
ulating valves must not be mixed up.
(2) Install all valves and springs from the valve
body (1) (Fig. 136). Check all valves for ease of move-
ment and shavings.
(3) Install the screws to hold the side covers to the
valve body. Tighten the screws to 4 N´m (35 in.lbs.).
Fig. 136 Valve Body Components
1 - VALVE BODY 8 - SHIFT VALVE PRESSURE REGULATING VALVE
2 - 1-2/4-5 COMMAND VALVE 9 - B2 SHIFT VALVE
3 - 1-2/4-5 HOLDING PRESSURE SHIFT VALVE 10 - 2-3 HOLDING PRESSURE SHIFT VALVE
4 - 1-2/4-5 SHIFT PRESSURE SHIFT VALVE 11 - 2-3 COMMAND VALVE
5 - 1-2/4-5 OVERLAP REGULATING VALVE, SLEEVE, AND PIS-
TON12 - 2-3 SHIFT PRESSURE SHIFT VALVE
6 - SHIFT PRESSURE REGULATING VALVE 13 - TCC LOCK-UP REGULATING VALVE
7 - REGULATING VALVE PRESSURE REGULATING VALVE 14 - TCC DAMPER VALVE - if equipped
21 - 126 AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATIONVA

(6) Install all check balls (1, 3, 4) (Fig. 138) and
the central strainer (2).
(7) Install the strainer (1) (Fig. 139) in the inlet to
torque converter lock-up control solenoid valve.
(8) Position the sealing plate (3) onto the valve
body (4) (Fig. 140).
(9) Install the valve housing (2) onto the valve
body (4) and sealing plate (3).
(10) Install the shift plate Torxtbolts (1) (Fig.
140). Tighten the bolts to 8 N´m (71 in.lbs.).
(11) Install leaf spring (5) (Fig. 140).(12) Install the strainers (1, 2) for the modulating
pressure and shift pressure control solenoid valves
(Fig. 141) into the valve housing.
Fig. 139 Converter Lock-up Solenoid Valve Strainer
Location
1 - CONVERTER LOCK-UP SOLENOID STRAINER
Fig. 140 Shift Plate Components
1-BOLTS-29
2 - VALVE HOUSING
3 - SEALING PLATE
4 - VALVE BODY
5 - LEAF SPRING
Fig. 141 Solenoid Valve Strainer Locations
1 - SOLENOID VALVE STRAINERS
21 - 128 AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATIONVA

(13) Install the electrohydraulic control module
(12) onto the shift plate (13) (Fig. 142).
(14) Bend the retaining lug on stiffening rib on
transmission oil temperature sensor to retain the
electrohydraulic control module.
(15) Install the solenoid valves (6 - 11) into shift
plate (13).
NOTE: Check O-rings on solenoid valves for dam-
age and replace if necessary.
(16) Install the leaf springs (5).
(17) Install the Torxtsocket bolts (3, 4) (Fig. 142).
Tighten the bolts to 8 N´m (71 in.lbs.).
NOTE: Pay attention to the different lengths of the
TorxTsocket bolts.
(18) Install the solenoid caps (1, 2).
(19) Install the electrohydraulic unit into the vehi-
cle.
INSTALLATION
(1) Position the electrohydraulic unit in the trans-
mission housing.
(2) Insert selector valve (1) (Fig. 143) in driver of
detent plate (2). When installing the electrohydraulic
control module in the transmission housing, the plas-
tic part of the selector valve (1) must engage in the
driver of the detent plate (2).Fig. 142 Electrical Unit Components
1 - SOLENOID CAP
2 - SOLENOID CAP
3 - BOLT - M6X32
4 - BOLT - M6X30
5 - LEAF SPRING
6 - MODULATING PRESSURE REGULATING SOLENOID VALVE
7 - SHIFT PRESSURE REGULATING SOLENOID
8 - 3-4 SHIFT SOLENOID
9 - TORQUE CONVERTER LOCK-UP SOLENOID
10 - 1-2/4-5 SHIFT SOLENOID
11 - 2-3 SHIFT SOLENOID
12 - ELECTRICHYDRAULIC CONTROL MODULE
13 - SHIFT PLATE
Fig. 143 Connect The Selector Valve To The Detent
Plate
1 - SELECTOR VALVE
2 - DETENT PLATE
VAAUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 129