Mercedes-Benz Sprinter / Dodge Sprinter. Manual — part 426
SPECIFICATIONS - TORQUE CHART
TORQUE SPECIFICATIONS
DESCRIPTION
N·m
Ft. Lbs.
In. Lbs.
Power Steering Pump To
Timing Case Cover/Sup-
port
21
15
185
High Pressure Flexible
Hose To Power Steering
Pump
38
28
336
Power Steering Pulley To
Pump
30
22
265
FLUID
STANDARD PROCEDURE
POWER STEERING PUMP FILL AND BLEED
PROCEDURE
(1) Remove the cap from the fluid reservoir.
Check cap seal for damage and replace if
needed.
(2) Fill the power steering pump with approved
fluid (Refer to LUBRICATION & MAINTENANCE/
FLUID TYPES - DESCRIPTION). Do not fill fluid
beyond the MAX mark.
(3) Raise the vehicles front wheels off the ground.
(4) With the engine off turn the steering wheel
from right to left. Perform this step until all the
bubble formations can no longer be seen in the
power steering reservoir.
(5) Start the engine and turn the steering wheel
with the engine at idle speed then shut the engine off
and check for correct oil level and no bubble in the
system.
(6) Reinstall power steering cap tightly.
(7) Test the system for leaks and proper operation.
FLUID COOLER TUBE
REMOVAL
(1) Siphon as much power steering fluid as possi-
ble out of the reservoir.
(2) Remove the grille (Refer to 23 - BODY/EXTE-
RIOR/GRILLE - REMOVAL).
(3) Remove the left headlight assembly.
(4) Disconnect the return lines from the cooler
tube.
(5) Remove the radiator clips (2).
(6) Remove the heat shield bolt for the turbo at
the core support.
(7) Remove the right headlight assembly.
(8) Remove the core support bolts (4) and discon-
nect the hood latch cable.
(9) Remove the fan bracket bolts (4) to the radiator
(Fig. 2).
(10) Remove the two upper screws for the con-
denser (Fig. 2).
(11) Remove the condenser air dam shield.
(12) Remove the mounting screws for the cooler
tube (Fig. 2).
(13) Remove the cooler tube from the vehicle.
INSTALLATION
(1) Install the cooler tube to the vehicle.
(2) Install the cooler tube mounting screws (Fig.
2).
(3) Install the condenser air dam shield.
(4) Install the condenser upper mounting screws
(Fig. 2).
(5) Install the fan bracket bolts to the radiator
(Fig. 2).
Fig. 2 FLUID COOLER TUBE
1 - MOUNTING SCREWS (4)
2 - FLUID COOLER
3 - ELECTRIC COOLING FAN
4 - A/C CONDENSOR
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PUMP
19 - 13
(6) Install the core support bolts and reconnect the
hood latch cable.
(7) Install the right headlight assembly.
(8) Install the bolt for the turbo shield at the core
support.
(9) Install the radiator clips.
(10) Install the return lines to the cooler tube.
(11) Install the left headlight assembly.
(12) Install the grille assembly (Refer to 23 -
BODY/EXTERIOR/GRILLE - INSTALLATION).
(13) Fill the power steering fluid (Refer to 19 -
STEERING/PUMP/FLUID - STANDARD PROCE-
DURE).
HOSES
REMOVAL
REMOVAL - PRESSURE HOSE
(1) Siphon as much power steering fluid as possi-
ble out of the reservoir.
(2) Disconnect the pressure hose at the pump.
(3) Disconnect the pressure hose at the steering
gear.
(4) Remove the pressure hose mounting bracket
from the gear.
(5) Remove the pressure hose from the vehicle.
REMOVAL - RETURN LINE FROM PUMP TO
COOLER TUBE
(1) Siphon as much power steering fluid as possi-
ble out of the reservoir.
(2) Disconnect the return line at the pump.
(3) Remove the grille (Refer to 23 - BODY/EXTE-
RIOR/GRILLE - REMOVAL).
(4) Remove the left headlight assembly.
(5) Disconnect the return line at the cooler tube.
(6) Remove the return line from the vehicle.
REMOVAL - RETURN HOSE FROM GEAR TO
COOLER TUBE
(1) Siphon as much power steering fluid as possi-
ble out of the reservoir.
(2) Disconnect the return hose from the gear.
(3) Remove the grille (Refer to 23 - BODY/EXTE-
RIOR/GRILLE - REMOVAL).
(4) Remove the left headlight assembly.
(5) Disconnect the return line at the cooler tube.
(6) Remove the return line from the vehicle.
INSTALLATION
INSTALLATION - PRESSURE HOSE
(1) Install the pressure hose to the vehicle.
(2) Reconnect the pressure hose at the steering
gear. Tighten to 37 N·m (27 ft.lbs.).
(3) Install the pressure hose mounting bracket to
the steering gear.
(4) Reconnect the pressure hose at the power
steering pump. Tighten to 38 N·m (28 ft.lbs.).
(5) Fill the power steering fluid (Refer to 19 -
STEERING/PUMP/FLUID - STANDARD PROCE-
DURE).
INSTALLATION - RETURN LINE FROM PUMP
TO COOLER TUBE
(1) Install the return line to the vehicle.
(2) Reconnect the return line at the cooler tube.
(3) Install the left headlight assembly.
(4) Install the grille assembly (Refer to 23 - BODY/
EXTERIOR/GRILLE - INSTALLATION).
(5) Reconnect the return line at the power steering
pump.
(6) Fill the power steering fluid (Refer to 19 -
STEERING/PUMP/FLUID - STANDARD PROCE-
DURE).
INSTALLATION - RETURN HOSE FROM GEAR
TO COOLER TUBE
(1) Install the return line to the vehicle.
(2) Reconnect the return line at the cooler tube.
(3) Install the left headlight assembly.
(4) Install the grille assembly (Refer to 23 - BODY/
EXTERIOR/GRILLE - INSTALLATION).
(5) Reconnect the return line at the power steering
gear.
(6) Fill the power steering fluid (Refer to 19 -
STEERING/PUMP/FLUID
-
STANDARD
PROCEDURE).
19 - 14
PUMP
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TRANSMISSION
TABLE OF CONTENTS
page
AUTOMATIC TRANSMISSION NAG1 - SERVICE
INFORMATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
AUTOMATIC TRANSMISSION NAG1 - SERVICE
INFORMATION
TABLE OF CONTENTS
page
page
AUTOMATIC TRANSMISSION NAG1 - SERVICE
INFORMATION
DESCRIPTION
. . . . . . . . . . . . . . . . . . . . . . . . . . 3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . . . . . . . . . . . 39
. . . . . . . . . . . . . . . . . . . . . . 39
. . . . . . . . . . . . . . . . . . . . . . 42
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
. . . . . . . . . . . . . . . . . . . . . . . . . 46
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
. . . . . . . . . . . . . . . . . . . . . . . . . 60
SPECIFICATIONS - NAG1 AUTOMATIC
. . . . . . . . . . . . . . . . . . . . . . 86
. . . . . . . . . . . . . . . . 87
INPUT CLUTCHES
. . . . . . . . . . . . . . . . . . . . . . . . . 90
. . . . . . . . . . . . . . . . . . . . . . . . . . . 91
INPUT CLUTCH K1
. . . . . . . . . . . . . . . . . . . . . . . . . 92
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
INPUT CLUTCH K2
. . . . . . . . . . . . . . . . . . . . . . . . . 97
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
INPUT CLUTCH K3
. . . . . . . . . . . . . . . . . . . . . . . . 102
. . . . . . . . . . . . . . . . . . . . . . . . . . . 103
ELECTROHYDRAULIC UNIT
. . . . . . . . . . . . . . . . . . . . . . . . 105
. . . . . . . . . . . . . . . . . . . . . . . . . . 112
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
. . . . . . . . . . . . . . . . . . . . . . . . 121
. . . . . . . . . . . . . . . . . . . . . . . . . . . 125
. . . . . . . . . . . . . . . . . . . . . . . . 129
FLUID AND FILTER
. . . . . . . . . . . . . . . . . . . . . . . . 131
. . . . . . . . . . . . . . . . . . . . . . . . . . 131
EFFECTS OF INCORRECT FLUID LEVEL
. . . . . . . . . . . . . . . 132
. . . . . . . . . . . . . . . . . . . 132
. . . . . . . . . . . . . . . . . 133
. . . . . . . . . . . . . . . 134
FREEWHEELING CLUTCH
. . . . . . . . . . . . . . . . . . . . . . . . 135
. . . . . . . . . . . . . . . . . . . . . . . . . . 135
. . . . . . . . . . . . . . . . . . . . . . . . 136
. . . . . . . . . . . . . . . . . . . . . . . . . . . 138
GEARSHIFT CABLE
. . . . . . . . . . . . . . . . . . 138
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
. . . . . . . . . . . . . . . . . . . . . . . . 140
HOLDING CLUTCHES
. . . . . . . . . . . . . . . . . . . . . . . . 141
. . . . . . . . . . . . . . . . . . . . . . . . . . 142
HOLDING CLUTCH B1
. . . . . . . . . . . . . . . . . . . . . . . . 143
. . . . . . . . . . . . . . . . . . . . . . . . . . . 145
HOLDING CLUTCH B2
. . . . . . . . . . . . . . . . . . . . . . . . 148
. . . . . . . . . . . . . . . . . . . . . . . . . . . 150
INPUT SPEED SENSORS
. . . . . . . . . . . . . . . . . . . . . . . . 153
. . . . . . . . . . . . . . . . . . . . . . . . . . 154
OIL PUMP
. . . . . . . . . . . . . . . . . . . . . . . . 154
. . . . . . . . . . . . . . . . . . . . . . . . . . 154
. . . . . . . . . . . . . . . . . . . . . . . . 155
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TRANSMISSION
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. . . . . . . . . . . . . . . . . . . . . . . . . 155
. . . . . . . . . . . . . . . . . . . . . . . . . . . 156
OUTPUT SHAFT BEARING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
. . . . . . . . . . . . . . . . . . . . . . . . 158
OUTPUT SHAFT SEAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
. . . . . . . . . . . . . . . . . . . . . . . . 159
PARK LOCK CABLE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
. . . . . . . . . . . . . . . . . . . . . . . . 161
PISTONS
. . . . . . . . . . . . . . . . . . . . . . . . 163
. . . . . . . . . . . . . . . . . . . . . . . . . . 163
PLANETARY GEARTRAIN
. . . . . . . . . . . . . . . . . . . . . . . . 164
. . . . . . . . . . . . . . . . . . . . . . . . . . 165
. . . . . . . . . . . . . . . . . . . . . . . . 166
. . . . . . . . . . . . . . . . . . . . . . . . . . . 167
SHIFT MECHANISM
. . . . . . . . . . . . . . . . . . . . . . . . 168
. . . . . . . . . . . . . . . . . . . . . . . . . . 168
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
. . . . . . . . . . . . . . . . . . . . . . . . 170
SOLENOID
. . . . . . . . . . . . . . . . . . . . . . . . 171
. . . . . . . . . . . . . . . . . . . . . . . . . . 174
TEMPERATURE SENSOR/PARK-NEUTRAL
CONTACT
DESCRIPTION
TRANSMISSION TEMPERATURE SENSOR
TRANSMISSION TEMPERATURE SENSOR
TORQUE CONVERTER
. . . . . . . . . . . . . . . . . . . . . . . . 178
. . . . . . . . . . . . . . . . . . . . . . . . . . 182
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
. . . . . . . . . . . . . . . . . . . . . . . . 184
TORQUE CONVERTER HUB SEAL
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
. . . . . . . . . . . . . . . . . . . . . . . . 184
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AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION
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