A3 Mk2
| Silencers and exhaust manifold - exploded view |
| 1 - | Gasket |
| q | Renew |
| 2 - | Exhaust manifold |
| q | Removing and installing → Chapter |
| 3 - | Bracket |
| 4 - | Nut |
| q | 23 Nm |
| q | Renew |
| q | Lubricate exhaust manifold studs with high-temperature paste. For high-temperature paste refer to → Electronic parts catalogue |
| 5 - | Heat shield |
| 6 - | Nut |
| q | 23 Nm |
| 7 - | Lambda probe -G39- (before catalytic converter), 55 Nm |
| q | After renewing, erase learnt values and in → engine control unit, „Guided Functions“. |
| q | When re-using the old Lambda probe, grease thread with high-temperature paste -G 052 112 A3-; the paste must not get into the slots of the probe body. |
| 8 - | Front exhaust pipe with catalytic converter |
| q | Protect against knocks and impact |
| q | With flexible joint |
| q | Do not bend flexible joint more than 10° – otherwise it can be damaged |
| q | Removing and installing → Chapter |
| q | Align exhaust system so it is free of stress → Chapter |
| 9 - | Lambda probe after catalytic converter -G130-, 55 Nm |
| q | The threads on the new Lambda probes are coated with a special assembly paste. |
| q | If re-installing old Lambda probe, coat thread with high-temperature paste: Refer to → Electronic parts catalogue for high-temperature paste |
| q | The assembly paste/high-temperature paste must not get into the slots on the probe body. |
| q | Removing and installing → Rep. gr.24 |
| 10 - | Clamp (front) |
| q | Align exhaust system so it is free of stress before tightening clamp → Chapter |
| q | Installation position → Fig. |
| q | Tighten bolt connections evenly. |
| 11 - | Nut |
| q | 23 Nm |
| 12 - | Rear tunnel cross-piece |
| 13 - | Nut |
| q | 23 Nm |
| 14 - | Bolt |
| q | 23 Nm |
| 15 - | Rubber mounting |
| q | Renew if damaged |
| 16 - | Clamp (rear) |
| q | For separate replacement of centre and rear silencers |
| q | Installation position → Chapter |
| q | Tighten bolt connections evenly. |
| 17 - | Nut |
| q | 23 Nm |
| 18 - | Rubber mounting |
| q | Renew if damaged |
| 19 - | Rear silencer |
| q | Combined in one unit with centre silencer as original equipment. Can be renewed individually for repair purposes |
| q | Separating centre and rear silencers → Chapter |
| q | Align exhaust system so it is free of stress → Chapter |
| 20 - | Mounting |
| q | Renew if damaged |
| 21 - | Bolt |
| q | 23 Nm |
| 22 - | Nut |
| q | 23 Nm |
| 23 - | Front tunnel cross-piece |
| 24 - | Centre silencer |
| q | Combined in one unit with rear silencer as original equipment. Can be renewed individually for repair purposes |
| q | Separating centre and rear silencers → Chapter |
| q | Align exhaust system so it is free of stress → Chapter |
| 25 - | Mounting |
| q | Renew if damaged |
| 26 - | Bolt |
| q | 23 Nm |
| 27 - | Mounting |
| q | Renew if damaged |
| 28 - | Nut |
| q | 25 Nm |
| q | Renew |
| q | Lubricate exhaust manifold studs with high-temperature paste. For high-temperature paste refer to → Electronic parts catalogue |
| 29 - | Bolt |
| q | 23 Nm |
| 30 - | Support for exhaust manifold |
| 31 - | Gasket |
| q | Renew |
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