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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSVOLKSWAGEN2003PASSAT SEDAN (3B3) V6-2.8L (ATQ)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSVARIABLE VALVE TIMING SOLENOIDLOCATIONS
2003 Volkswagen Passat Sedan (3B3) V6-2.8L (ATQ)
Variable Valve Timing Solenoid: Locations
2003 Volkswagen Passat Sedan (3B3) V6-2.8L (ATQ)SECTION Locations
Fuel injection servicing
Component location overview
1. Green 4-pin harness connector for Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-, bank 1 and oxygen sensor heater -Z29-, cylinder bank 1
2. Brown 4-pin harness connector for Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) -G131-, bank 2 and heater for oxygen sensor -Z30-, cylinder bank 2
3. Black 4-pin harness connector for Heated Oxygen Sensor (HO2S) -G39-, bank 1 before Three Way Catalytic Converter (TWC) and oxygen sensor heater -Z19-, cylinder bank 1
4. Brown 3-way connector for Knock Sensor (KS) 1 -G61-, cylinder bank 1
5. Engine Coolant Temperature (ECT) sensor -G62-
6. Secondary Air Injection (AIR) solenoid valve -N112-
Secondary Air Injection system:
7. Intake Air Temperature (IAT) sensor -G42-
8. Intake manifold change-over valve -N156-
9. Throttle Valve Control Module -J338-
10. Black 4-pin harness connector for Heated Oxygen Sensor (HO2S) 2 -G108-, bank 2 before catalytic converter and oxygen sensor heater -Z28-, cylinder bank 2
11. Brown 3-way connector for Knock Sensor (KS) 2 -G66-, cylinder bank 2
12. Grey 3-way connector for Engine Speed (RPM) sensor -G28-
13. Engine Control Module (ECM) (control module for Motronic -J220-)
Installation location: in protective housing, radiator tank on left
14. Fuel pressure regulator
15. Camshaft Position (CMP) sensor 2 -G163- (Engine bank 2)
16. Heated Oxygen Sensor (HO2S) 2 -G108-, bank 2 before catalytic converter, 50 Nm
17. Engine Speed (RPM) sensor -G28-
18. Knock Sensor (KS) 2 -G66- (Engine bank 2)
19. Valve -2- for camshaft adjustment -N208- (Engine bank 2)
20. Ignition coils (-N-, -N128-, -N158-) With power output stage -N122-
21. Knock Sensor (KS) 1 -G61- (Engine bank 1)
22. Fuel injector (-N30-, -N33-, -N83-, -N84-)
23. Camshaft Position (CMP) sensor -G40- (Engine bank 1)
24. Ground connection on engine bracket, right side
25. Heated Oxygen Sensor (HO2S) -G39-, bank 1 before catalytic converter, 50 Nm
26. Valve -1- for camshaft adjustment -N205- (Engine bank 1)
27. Secondary Air Injection pump motor (V101)
Secondary Air Injection system:
28. Mass Air Flow (MAF) sensor -G70-
29. Evaporative Emission (EVAP) canister purge regulator valve -N80-
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra 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.