automatic transmission fluid MERCEDES-BENZ SPRINTER 2006 Owner's Guide

²Transmission fluid temperature
²Engine coolant temperature
²Input speed
²Throttle angle
²Engine speed
OPERATION
The converter impeller (driving member) (2) (Fig.
248), which is integral to the converter housing and
bolted to the engine drive plate, rotates at engine
speed. The converter turbine (driven member) (1),
which reacts from fluid pressure generated by the
impeller, rotates and turns the transmission input
shaft (4).
TURBINE
As the fluid that was put into motion by the impel-
ler blades strikes the blades of the turbine, some of
the energy and rotational force is transferred into the
turbine and the input shaft. This causes both of them
(turbine and input shaft) to rotate in a clockwise
direction following the impeller. As the fluid is leav-
ing the trailing edges of the turbine's blades it con-
tinues in a ªhinderingº direction back toward the
impeller. If the fluid is not redirected before it strikes
the impeller, it will strike the impeller in such a
direction that it would tend to slow it down.
STATOR
Torque multiplication is achieved by locking the
stator's over-running clutch to its shaft. (Fig. 249)
Under stall conditions (the turbine is stationary), the
oil leaving the turbine blades strikes the face of the
stator blades and tries to rotate them in a counter-
clockwise direction. When this happens the over-run-
ning clutch of the stator locks and holds the stator
from rotating. With the stator locked, the oil strikes
the stator blades and is redirected into a ªhelpingº
direction before it enters the impeller. This circula-
tion of oil from impeller to turbine, turbine to stator,
and stator to impeller, can produce a maximum
torque multiplication of about 2.0:1. As the turbine
begins to match the speed of the impeller, the fluid
that was hitting the stator in such as way as to
cause it to lock-up is no longer doing so. In this con-
dition of operation, the stator begins to free wheel
and the converter acts as a fluid coupling.
Fig. 248 Torque Converter
1 - TURBINE
2 - IMPELLER
3-STATOR
4 - INPUT SHAFT
5 - STATOR SHAFT
6 - TURBINE DAMPER
Fig. 249 Stator Operation
1 - DIRECTION STATOR WILL FREE WHEEL DUE TO OIL
PUSHING ON BACKSIDE OF VANES
2 - FRONT OF ENGINE
3 - INCREASED ANGLE AS OIL STRIKES VANES
4 - DIRECTION STATOR IS LOCKED UP DUE TO OIL PUSHING
AGAINST STATOR VANES
21 - 182 AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATIONVA

INSTALLATION
Check converter hub and drive flats for sharp
edges, burrs, scratches, or nicks. Polish the hub and
flats with 320/400 grit paper or crocus cloth if neces-
sary. The hub must be smooth to avoid damaging the
pump seal at installation.
(1) Lubricate oil pump seal lip with transmission
fluid.
(2)
Place torque converter in position on transmission.
CAUTION: Do not damage oil pump seal or con-
verter hub while inserting torque converter into the
front of the transmission.
(3) Align torque converter to oil pump seal open-
ing.
(4) Insert torque converter hub into oil pump.
(5) While pushing torque converter inward, rotate
converter until converter is fully seated in the oil
pump gears.
(6) Check converter seating with a scale and
straightedge (Fig. 251). Surface of converter lugs
should be at least 19 mm (3/4 in.) to rear of straight-
edge when converter is fully seated.
(7) If necessary, temporarily secure converter with
C-clamp attached to the converter housing.
(8) Install the transmission in the vehicle.
(9) Fill the transmission with the recommended
fluid.
TORQUE CONVERTER HUB
SEAL
REMOVAL
(1) Remove the torque converter (Refer to 21 -
TRANSMISSION/AUTOMATIC - NAG1/TORQUE
CONVERTER - REMOVAL).(2) Remove the torque converter hub seal with
suitable screw and slide hammer.
INSTALLATION
(1) Position the torque converter hub seal (1) (Fig.
252) over the input shaft and against the transmis-
sion oil pump.
(2) Using Seal Installer 8902A (2) (Fig. 253),
install a new torque converter hub seal.
(3) Install the torque converter (Refer to 21 -
TRANSMISSION/AUTOMATIC - NAG1/TORQUE
CONVERTER - INSTALLATION).
Fig. 251 Torque Converter Installation Depth
1 - TORQUE CONVERTER
2 - TRANSMISSION HOUSING
Fig. 252 Position Torque Converter Hub Seal
1 - TORQUE CONVERTER HUB SEAL
2 - INPUT SHAFT
Fig. 253 Install Torque Converter Hub Seal
1 - OIL PUMP
2 - SEAL INSTALLER 8902A
21 - 184 AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATIONVA

INDEX
ABS INDICATOR.......................8J-9ACCELERATOR PEDAL POSITION SENSOR. . . 14-32
ACCESSORY SWITCH BEZEL............23-56
ADR INDICATOR.....................8J-10
AIR CLEANER ELEMENT................9-21
AIR CLEANER HOUSING................9-21
AIR FILTER ....................24-45, 24-58
AIR OUTLET TEMPERATURE SENSOR....24-16
AIR OUTLETS.......................24-45
AIRBAG CONTROL MODULE.............8O-8
AIRBAG INDICATOR...................8J-11
ALB CONTROLLER....................5-16
ALB LEVER..........................5-16
AMBIENT TEMPERATURE INDICATOR.....8J-11
AMBIENT TEMPERATURE SENSOR.......24-17
ANTENNA BODY & CABLE..............8A-1
ARMREST..........................23-79
ASH RECEIVER......................23-57
ASH RECEIVER / CIGAR LIGHTER LAMP
UNIT..............................8L-30
ASSIST HANDLE.....................23-71
AUDIO..............................8A-1
AUTOMATIC TRANSMISSION NAG1 -
SERVICE INFORMATION................21-3
A - PILLAR TRIM.....................23-70
A / C CLUTCH RELAY.................24-24
A / C COMPRESSOR CLUTCH COIL.......24-12
A / C COMPRESSOR CLUTCH............24-8
A / C COMPRESSOR..................24-66
A / C CONDENSER COVER.............24-52
A / C CONDENSER FAN RELAY..........24-26
A / C CONDENSER HOUSING...........24-52
A / C CONDENSER....................24-69
A / C CONTROL MODULE..............24-28
A / C DISCHARGE LINE................24-71
A / C EVAPORATOR COVER.............24-55
A / C EVAPORATOR HOUSING...........24-55
A / C EVAPORATOR...................24-72
A / C EXPANSION VALVE...............24-73
A / C HEATER CONTROL...............24-12
A / C HIGH PRESSURE SWITCH.........24-30
A / C LOW PRESSURE SWITCH.........24-32
A / C PRESSURE TRANSDUCER.........24-14
BACKLITE - BULKHEAD TRIM PANEL.....23-84
BACKUP LAMP BULB..................8L-5
BASECOAT / CLEARCOAT FINISH........23-77
BATTERY CABLES....................8F-14
BATTERY HOLDDOWN.................8F-13
BATTERY SYSTEM.....................8F-1
BATTERY TRAY......................8F-16
BATTERY............................8F-6
BEARINGS - DIFFERENTIAL CASE.........3-38
BEARING / SEAL - AXLE HUB............3-28
BEARING / SEAL - AXLE................3-24
BELT TENSIONERS.....................7-5
BLOWER MOTOR RELAY...............24-33
BLOWER MOTOR RESISTOR............24-17
BLOWER MOTOR SWITCH........24-19, 24-35
BLOWER MOTOR...............24-47, 24-58
BODY...............................23-1
BOOST PRESSURE SENSOR............14-33
BRAKE INDICATOR...................8J-12
BRAKE LAMP SWITCH.................8L-6
BRAKE LINES.........................5-8
BRAKE PADS / SHOES...................5-8
BRAKE WEAR INDICATOR..............8J-13
BRAKES - ABS........................5-30
BRAKES - BASE........................5-2
BRAKE / PARK LAMP BULB.............8L-7
BULKHEAD TRIM PANEL...............23-72
BUMPERS...........................13-1
BUSHINGS............................2-3
B - PILLAR TRIM.....................23-71
CABIN HEATER.....................24-104
CABLE TENSIONER....................5-24
CABLE..............................8P-2
CABLES.............................5-24
CAMSHAFT POSITION SENSOR..........14-33
CAMSHAFT(S)........................9-28
CARGO LAMP SWITCH................8L-31
CARGO / DOME LAMP BULB............8L-30
CARGO / DOME LAMP UNIT............8L-31
CARPETS AND FLOOR MATS...........23-72
CATALYTIC CONVERTER
................11-3
CENTER BEARING
......................3-9
CENTER HIGH MOUNTED STOP LAMP BULB. . . 8L-8CENTER HIGH MOUNTED STOP LAMP UN.....8L-8
CENTER ROLLER ARM
................23-36CENTER TRACK......................23-37
CENTRAL TIMER MODULE..............8E-1
CHARGE AIR COOLER AND PLUMBING....11-4
CHARGING INDICATOR................8J-14
CHARGING SYSTEM..................8F-17
CHECK VALVE.......................8R-11
CHECK.......................23-13, 23-23
CHIME / BUZZER......................8B-1
CIGAR LIGHTER OUTLET............8W-97-1
CIRCUIT BREAKER.................8W-97-2
CLEARANCE LAMP BULB...............8L-9
CLEARANCE LAMP UNIT................8L-9
CLOCK.............................8J-14
CLOCKSPRING......................8O-12
CLUSTER BEZEL.....................23-55
COLUMN............................19-4
CONNECTOR.......................Intro.-9
CONNECTOR/GROUND/SPLICE
LOCATION........................8W-91-1
CONTROLLER ANTILOCK BRAKE.........8E-3
COOLANT LEVEL SENSOR...............7-13
COOLANT LOW INDICATOR.............8J-15
COOLANT............................7-9
COOLING.............................7-1
COWL TRIM........................23-73
CRANKCASE VENTILATION BREATHER......25-2
CRANKCASE VENTILATION HEATER.......25-1
CRANKSHAFT OIL SEAL - FRONT.........9-42
CRANKSHAFT OIL SEAL - REAR..........9-41
CRANKSHAFT POSITION SENSOR........14-35
CRANKSHAFT........................9-39
CUP HOLDER........................23-57
CYLINDER HEAD COVER(S).............9-33
CYLINDER HEAD......................9-22
DAYTIME RUNNING LAMP RELAY.......8L-10
DEFROSTER DUCTS..................24-47
DIFFERENTIAL........................3-31
DIODE............................Intro.-9
DISC BRAKE CALIPER ADAPTER.........5-14
DISC BRAKE CALIPERS.................5-11
DOME LAMP / INTRUSION SENSOR
BULB..............................8L-33
DOME LAMP / INTRUSION SENSOR......8L-33
DOME / READING LAMP BULB..........8L-32
DOME / READING LAMP UNIT..........8L-32
DOOR GLASS............23-15, 23-30, 23-46
DOOR JAMB SWITCH.................8L-34
DOOR LOCK MOTOR...................8N-1
DOOR OPENING SEALS................23-90
DOOR........................23-14, 23-23
DRIVE BELTS..........................7-5
DRIVER AIRBAG.....................8O-16
DRIVER HEATED SEAT SWITCH.........8G-11
D - PILLAR TRIM.....................23-73
ELECTRIC COOLANT PUMP.............24-75
ELECTRICAL.........................5-30
ELECTROHYDRAULIC UNIT............21-105
ENGINE BLOCK HEATER................7-14
ENGINE BLOCK.......................9-37
ENGINE CONTROL MODULE.............8E-3
ENGINE COOLANT TEMP SENSOR........7-15
ENGINE COOLANT THERMOSTAT.........7-16
ENGINE CRADLE CROSSMEMBER........13-8
ENGINE TEMPERATURE GAUGE.........8J-15
ENGINE..............................9-2
ENTRY / EXIT LAMP BULB.............8L-34
ENTRY / EXIT LAMP UNIT..............8L-35
ESP INDICATOR......................8J-16
EVAPORATOR TEMPERATURE
SENSOR......................24-19, 24-37
EXHAUST GAS RECIRCULATION..........25-4
EXHAUST MANIFOLD..................9-68
EXHAUST PIPE.......................11-3
EXHAUST SYSTEM....................11-1
EXHAUST TUBE.....................24-105
EXTERIOR HANDLE.......23-16, 23-31, 23-35
FAN DRIVE VISCOUS CLUTCH...........7-17
FASTENER IDENTIFICATION...........Intro.-3
FASTENER USAGE...................Intro.-6
FINESSE SANDING / BUFFING & POLISH . . 23-78
FLOOR DISTRIBUTION DUCTS..........24-47
FLUID AND FILTER..................21-131
FLUID CAPACITIES.....................0-5
FLUID COOLER TUBE
.................19-13
FLUID FILL / CHECK LOCATIONS
..........0-5
FLUID RESERVOIR
....................5-15
FLUID TYPES
..........................0-1
FLYWHEEL
...........................9-43FOG LAMP BULB.....................8L-10
FOG LAMP RELAY....................8L-11
FOG LAMP SWITCH...................8L-12
FRAME..............................13-3
FREEWHEELING CLUTCH.............21-135
FRONT BUMPER - STEPS...............13-2
FRONT DOOR INNER BELT
WEATHERSTRIP.....................23-90
FRONT DOOR OUTER BELT
WEATHERSTRIP.....................23-90
FRONT FASCIA.......................13-2
FRONT LAMP UNIT...................8L-13
FRONT POSITION LAMP BULB..........8L-14
FRONT SEAT BELT & RETRACTOR.......8O-20
FRONT SEAT BELT BUCKLE............8O-23
FRONT TURN / PARK / SIDE MARKER
LAMP BULB.........................8L-15
FRONT WHEEL SPEED SENSOR..........5-31
FRONT...............................2-1
FUEL DELIVERY.......................14-6
FUEL DOSING PUMP.................24-106
FUEL DRAIN TUBES..................14-10
FUEL FILL DOOR.....................23-48
FUEL FILTER CLOGGED INDICATOR......8J-17
FUEL FILTER........................14-10
FUEL GAUGE........................8J-17
FUEL INJECTOR.......................14-35
FUEL LEVEL SENDING UNIT / SENSOR....14-28
FUEL LINE.........................24-107
FUEL LINES.........................14-11
FUEL PRESSURE SENSOR.............14-39
FUEL PRESSURE SOLENOID............14-40
FUEL PUMP MODULE.................14-18
FUEL PUMP.........................14-13
FUEL QUANTITY CONTROL VALVE.......14-21
FUEL RAIL PRESSURE SENSOR.........14-12
FUEL RAIL..........................14-22
FUEL SYSTEM........................14-1
FUEL TANK.........................14-23
FUEL TEMPERATURE SENSOR..........14-42
FUSE BLOCK #1...................8W-97-2
FUSE BLOCK #2...................8W-97-3
GAP AND FLUSH.....................23-91
GEAR SELECTOR INDICATOR...........8J-18
GEAR...............................19-7
GEARSHIFT CABLE..................21-138
GEAR - PINION / RING.................3-41
GENERATOR DECOUPLER PULLEY.......8F-19
GENERATOR........................8F-18
GLOVE BOX.........................23-58
GLOW PLUG RELAY....................8I-1
GLOW PLUG..........................8I-1
GRILLE............................23-48
HCU (HYDRAULIC CONTROL UNIT).......5-36
HEADLAMP LEVELING MOTOR..........8L-16
HEADLAMP LEVELING SWITCH.........8L-17
HEADLINER.........................23-73
HEADREST..........................23-79
HEATED GLASS.......................8G-1
HEATED MIRRORS....................8G-9
HEATED SEAT ELEMENT...............8G-12
HEATED SEAT RELAY.................8G-12
HEATED SEAT SENSOR................8G-13
HEATED SEATS ......................8G-10
HEATER CORE.......................24-76
HEATER UNIT......................24-110
HEATING & AIR CONDITIONING..........24-1
HIGH BEAM HEADLAMP BULB..........8L-18
HIGH BEAM INDICATOR...............8J-19
HINGE..................23-17, 23-32, 23-51
HOISTING............................0-5
HOLDING CLUTCH B1................21-143
HOLDING CLUTCH B2................21-148
HOLDING CLUTCHES.................21-141
HOOD.............................23-51
HORN SWITCH.......................8H-1
HORN..............................8H-1
HOSES.............................19-14
HUB / BEARING........................2-4
HVAC HOUSING......................24-48
HYDRAULIC / MECHANICAL..............5-5
IGNITION CONTROL....................8I-1
INLET HOSE........................24-111
INPUT CLUTCH K1
...................21-92
INPUT CLUTCH K2
...................21-97
INPUT CLUTCH K3
..................21-102
INPUT CLUTCHES
....................21-90
INPUT SPEED SENSORS
..............21-153
VAINDEX 1
Description Group-Page Description Group-Page Description Group-Page

Symptom:
IC/ATC CAN MESSAGE MISSING
POSSIBLE CAUSES
CAN BUS CIRCUIT DTC PRESENT
AUTOMATIC TEMP CONTROL DTCS PRESENT
INSTRUMENT CLUSTER DTCS PRESENT
OPEN CAN BUS CIRCUITS AT INSTRUMENT CLUSTER
OPEN CAN BUS CIRCUITS AUTOMATIC TEMP CONTROL
AUTOMATIC TEMP CONTROL
INSTRUMENT CLUSTER
TEST ACTION APPLICABILITY
1NOTE: Low fluid level can be the cause of many transmission problems. If
the fluid level is low locate and repair the leak then check and adjust the
fluid level per the service information.
NOTE: Always perform diagnostics with a fully charged battery to avoid
false symptoms.
With the DRBIIIt, read the engine DTCs. Check and repair all engine DTCs prior to
performing transmission symptom diagnostics.
With the DRBIIIt, read and record all Transmission DTCs.
NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal
connections can set DTCs.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Repair as necessary.
Most DTCs set on start up but some must be set by driving the vehicle such that all
diagnostic monitors have run.
Note: Verify flash level of transmission controller. Some problems are
corrected by software upgrades to the transmission controller.
NOTE: Check for any Technical Service Bulletins that may apply.
Perform this procedure prior to Symptom diagnosis.All
Continue
Go To 2
2 Ignition on, engine not running.
With the DRBIIIt, read Transmission DTCs.
NOTE: If the DTC, CAN BUS CIRCUIT, is present, perform diagnostics on
that symptom first.
Is the DTC, CAN BUS CIRCUIT, present?All
Ye s!Refer to the Transmission category and perform the appropriate
symptom.
No!Go To 3
3NOTE: NOTE: If vehicle is equipped with Air Conditioning diagnose the ATC
system first.
Is the vehicle equipped with air conditioning?All
Ye s!Go To 4
No!Go To 6
72
TRANSMISSION - NAG1