Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2007 Freightliner Sprinter 2500 V6-3.0L DSL TurboFACTORY OEM SERVICE PROCEDURE
Air Flow Meter/Sensor: Diagrams
Component ID: 477
Component : SENSOR-MASS AIR FLOW
Connector:
Name : SENSOR-MASS AIR FLOW
Color : BLACK
# of pins : 5
Gender : FEMALE
Pin Description Circuit
1 FUSED MAIN RELAY OUTPUT U795 20BK/WT
2 SENSOR GROUND 1629 20YL/GY
3 IAT SIGNAL 1630 20YL/WT
4 5 VOLT SUPPLY 496 20YL/PK
5 MAF SIGNAL 1631 20YL/BR
Connector:
Name : SENSOR-MASS AIR FLOW
Color : BLACK
# of pins : 5
Qualifier : (DIESEL)
Gender : FEMALE
Pin Description Circuit
1 IGNITION SWITCH OUTPUT (RUN-START) U364 18BK/WT
2 MASS AIR FLOW SENSOR GROUND 1340 20YL/BR
3 MASS AIR FLOW TEMPERATURE SENSOR SIGNAL 1338 20GY/YL
4 MASS AIR FLOW SENSOR SIGNAL 1339 20DG/YL
5 - -
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.