Touareg V8-4.2L (AXQ) (2006)
Catalytic Converter: Service and Repair
Exhaust Manifolds with Primary Catalytic Converters and Attachments, Assembly Overview
1
Nut, 25 Nm
2
Nut, 25 Nm
3
Exhaust manifold
‹› For cylinder bank 1
‹› Removal is only possible when engine is removed
4
M8 25 Nm, M10 40 Nm
5
Heated Oxygen Sensor (HO2S) (G39), 50 Nm
‹› Installed in exhaust gas stream of cylinders 1, 2, 3 and 4
‹› Grease only threads with "G 052 112 A3"; "G 052 112 A3" must not get into slots on probe body
‹› Use ring spanner set for oxygen sensor (3337) for removal and installation
6
Primary catalytic converter
‹› Installed in exhaust stream of cylinder bank 1
7
Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130) 50 Nm