A4 Mk2
| Silencers - exploded view |
| 1 - | Turbocharger |
| 2 - | Gasket |
| q | Renew |
| 3 - | Lambda probe -G39- and Lambda probe heater -Z19- (black connector) |
| q | Tightening torque: 55 Nm |
| q | Grease only the threads with high-temperature paste. The paste must not penetrate into the slots on the probe body. |
| q | High-temperature paste → Parts catalogue |
| q | Removing and installing → Rep. Gr.24 |
| 4 - | Lambda probe after catalytic converter -G130- and Lambda probe 1 heater after catalytic converter -Z29- (brown connector) |
| q | Tightening torque: 55 Nm |
| q | Grease only the threads with high-temperature paste. The paste must not penetrate into the slots on the probe body. |
| q | High-temperature paste → Parts catalogue |
| q | Removing and installing → Rep. Gr.24 |
| 5 - | Catalytic converter |
| q | Protect from damage by knocks and impacts |
| q | Removing and installing → Chapter |
| 6 - | 25 Nm |
| q | Renew |
| 7 - | Gasket |
| q | Renew |
| 8 - | Bolt |
| 9 - | Front exhaust pipe |
| q | With flexible joint |
| q | Do not bend flexible joint more than 10° – otherwise it can be damaged |
| q | Removing and installing → Chapter |
| 10 - | Clamp (front) |
| q | Installation position: bolt connection facing to the left. |
| q | Installation position of bolts → Fig. |
| q | Before tightening, align exhaust system so it is free of stress → Chapter |
| q | Tighten bolt connections evenly |
| 11 - | 23 Nm |
| q | Renew |
| 12 - | Spacer bush |
| 13 - | Buffer |
| 14 - | Bracket |
| 15 - | Spacer bush |
| 16 - | Bolt |
| 17 - | Rear silencer |
| q | For left side of vehicle |
| q | Combined in one unit with centre silencer as original equipment. Can be renewed individually for repair purposes |
| q | Cutting point → Anchor |
| q | Align exhaust system so it is free of stress → Chapter |
| 18 - | Mountings |
| q | Renew if damaged |
| q | Check preload → Chapter |
| 19 - | 23 Nm |
| 20 - | Rear silencer |
| q | For right side of vehicle |
| q | Combined in one unit with centre silencer as original equipment. Can be renewed individually for repair purposes |
| q | Cutting point → Anchor |
| q | Align exhaust system so it is free of stress → Chapter |
| 21 - | 23 Nm |
| 22 - | 23 Nm |
| 23 - | Clamps (rear) |
| q | For separate replacement of centre and rear silencers |
| q | Before tightening, align exhaust system so it is free of stress → Chapter |
| q | Installation position: bolted connections facing outwards |
| q | Installation position of bolts → Fig. |
| q | Tighten bolt connections evenly |
| 24 - | Centre silencer |
| q | Combined in one unit with rear silencers as original equipment. Can be renewed individually for repair purposes |
| q | Cutting point → Anchor |
| q | Align exhaust system so it is free of stress → Chapter |
| 25 - | 23 Nm |
| 26 - | Mounting |
| q | Renew if damaged |
| q | Note direction of arrow (direction of travel) when installing |
| q | Check preload → Chapter |
| 27 - | Bolt |
| 28 - | Washer |
| 29 - | Compression spring |
| 30 - | Spacer sleeve |
| 31 - | 25 Nm |
| q | Renew |
| 32 - | 30 Nm |
| q | Renew |
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