oil filter MERCEDES-BENZ SPRINTER 2006 Repair Manual

TEST ACTION APPLICABILITY
3 Determine if there are any Transmission Mechanical problems present.
Remove the Transmission Oil Pan and inspect for debris or a plugged Transmission
Oil Filter.
Is there any debris, plugged Transmission Oil Filter, or signs of an Internal
Transmission problem?All
Ye s!Refer to the Service Information for the proper repair procedure.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 4
4NOTE: The Engine and Transmission must not have mechanical problems
and be operating normally before proceeding with this test.
Turn the ignition off to the lock position.
Replace and program the PCM/ECM Control Module per the Service Information.
With the DRBIIIt, erase Transmission DTCs.
Road test the Vehicle.
With the DRBIIIt, read Transmission DTCs.
Does the DTC, ENGINE OVERSPEED, reset?All
Ye s!Go To 5
No!Replacing the ECM has corrected the problem. Perform the
Powertrain Verification test.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
5 If there are no possible causes remaining, view repair. All
Repair
Replace the TCM.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
61
TRANSMISSION - NAG1
ENGINE OVERSPEED ÐContinued

TEST ACTION APPLICABILITY
2 Determine if there are any Transmission Mechanical problems present.
Remove the Transmission Oil Pan and inspect for debris or a plugged Transmission
Oil Filter.
Refer to the Service Information for proper removal and inspection procedures.
Is there any Debris, plugged Transmission Oil filter, or signs of an Internal
Transmission problem?All
Ye s!Refer to the Service Information for the proper repair procedure.
Pay particular attention to the Valve body components and stuck
solenoids.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Replace the Transmission Control Module.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
77
TRANSMISSION - NAG1
IMPROPER RATIO ÐContinued

TEST ACTION APPLICABILITY
2 With the DRBIIIt, read DTCs.
Are any Speed Sensor or Sensor Supply DTCs present?All
Ye s!Repair any Speed Sensor and/or Sensor Supply DTCs before
proceeding with test.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 3
3 Ignition on, engine not running.
With the DRBIIIt, erase Transmission DTCs.
Start the engine.
Drive the vehicle to speeds to allow multiple 2-3 and 3-4 upshifts.
Does the DTC9INPUT SENSOR MISMATCH9reset and displayed as9ACTIVE9?All
Ye s!Go To 4
No!Go To 6
4 Remove the Transmission Oil Pan and inspect for debris or a plugged Transmission
Oil Filter.
Is there any debris, plugged Transmission Oil Filter, or signs of an Internal
Transmission problem?All
Ye s!Repair Internal Transmission as necessary. Pay particular atten-
tion to the Electrohydraulic Control unit. Refer to the Service
Information for proper repair procedures.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 5
5 If there are no possible causes remaining, view repair. All
Repair
Replace the Transmission Control Module.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
6 The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wires while checking for shorts and open circuits.
NOTE: Check for any Technical Service Bulletins that may apply.
Were there any problems found?All
Ye s!Repair as necessary
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Test Complete.
79
TRANSMISSION - NAG1
INPUT SENSOR MISMATCH ÐContinued

TEST ACTION APPLICABILITY
2 Ignition on, engine not running.
With the DRBIIIt, erase Transmission DTCs.
Raise the vehicle on the hoist.
Start the engine.
NOTE: This condition indicates a catastrophic transmission failure.
With the DRBIIItin Sensors, monitor the N2 and N3 Speed Sensors.
Firmly apply the brakes and place the gear selector in Drive (D).
Release the brakes and raise the engine RPM to allow the Transmission to upshift to
the 2-3 and 3-4 shift schedule.
CAUTION: BE SURE TO KEEP HANDS AND FEET CLEAR OF ROTATING
WHEELS.
Did either the N2 or N3 Speed Sensors display a RPM above 7700?All
Ye s!Go To 3
No!Go To 5
3 Remove the Transmission Oil Pan and inspect for debris or a plugged Transmission
Oil Filter.
Is there any debris, plugged Transmission Oil Filter, or signs of an Internal
Transmission problem?All
Ye s!Repair Internal Transmission as necessary. Pay particular atten-
tion to the Electrohydraulic Control unit. Refer to the Service
Information for proper repair procedures.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Go To 4
4 If there are no possible causes remaining, view repair. All
Repair
Replace the Transmission Control Module.
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
5 The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this
circuit.
Wiggle the wires while checking for shorts and open circuits.
NOTE: Check for any Technical Service Bulletins that may apply.
Were there any problems found?All
Ye s!Repair as necessary
Perform NAG1 TRANSMISSION VERIFICATION TEST - VER 1.
No!Test Complete.
81
TRANSMISSION - NAG1
INPUT SENSOR OVERSPEED ÐContinued