Audi Workshop Service and Repair Manuals > A4 Mk3 > Power unit | Simos direct petrol injection and ignition system (6-cyl. 3.2 ltr. 4-valve) | Mixture preparation system, electronic inj.,Gas | Injection system

Lambda probes - overview

Electrical connectors for Lambda probes on cylinder bank 1 (right-side)

1 -	Injectors, cylinder bank 1

2 -	Knock sensor 1 -G61-

4 -	Lambda probe -G39-

5 -	Lambda probe after catalytic converter -G130-

Electrical connectors for Lambda probes on cylinder bank 2 (left-side)

1 -	Lambda probe 2 after catalytic converter -G131-

2 -	Lambda probe 2 -G108-

3 -	Injectors, cylinder bank 2, and for fuel pressure sender -G247-

4 -	Knock sensor 2 -G66-

Fitting location of Lambda probes on cylinder bank 1 (right-side)

1 -	Lambda probe -G39-

2 -	Lambda probe after catalytic converter -G130-

t	Tightening torque: 55 Nm

Fitting location of Lambda probes on cylinder bank 2 (left-side)

1 -	Lambda probe 2 -G108-

2 -	Lambda probe 2 after catalytic converter -G131-

t	Tightening torque: 55 Nm

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