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.
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HOMESERVICE MANUALSVOLKSWAGEN2004JETTA SEDAN (9M2) L4-2.0L (AVH)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSAIR FLOW METER/SENSORLOCATIONSOVERVIEW OF COMPONENT LOCATIONS
2004 Volkswagen Jetta Sedan (9M2) L4-2.0L (AVH)
Overview of Component Locations
2004 Volkswagen Jetta Sedan (9M2) L4-2.0L (AVH)SECTION Overview of Component Locations
Engines: AVH, AZG
10. Mass Air Flow (MAF) sensor -G70- with Intake Air Temperature (IAT) sensor -G42
^ Gold plated contacts
Engines: AEG, AVH, AZG, BBW, BEV
1. Connector
^ Black, 2-pin
^ For Positive Crankcase Ventilation (PVC) heating element -N79
^ Check heater element voltage supply between contacts 1 and 2 with engine running, Specification: m in. 11. 5 V
2. Intake hose
^ With Positive Crankcase Ventilation (PVC) heating element -N79
3. Mass Air Flow (MAF) sensor -G70-
4. 5-pin Connector
^ Black
^ Contacts gold plated
5. Seal
^ Replace if damaged
6. Air cleaner upper part
7. Air duct
^ Clipped into air cleaner upper part
8. 6 Nm
9. Filter element
10. Air cleaner lower section
11. Air duct
12. 10 Nm
13. O-ring
^ Replace if damaged
14. Intake hose
15. Connecting hose
^ Engines: AEG, AVH, AZG
^ To air line for air shroud injectors
16. Connecting hose
17. Connecting hose
18. Connecting hose
19. To throttle valve control module -J338
RENDER: 1.0x
NO RELATED
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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.