A4 Mk2
| Exhaust system - exploded view of components |
Note| Depending on version, a one-piece catalytic converter can be fitted instead of the two-piece catalytic converters → Item shown. |
| 1 - | Centre silencer |
| q | Combined in one unit with rear 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 |
| 2 - | 23 Nm |
| 3 - | Mounting |
| q | Renew if damaged |
| q | Check preload → Chapter „Stress-free alignment of exhaust system“ |
| 4 - | Front exhaust pipe with main catalytic converter |
| q | With flexible joint |
| q | Do not bend flexible joint more than 10° - otherwise it can be damaged |
| q | Protect against knocks and impact |
| q | Removing and installing → Chapter |
| q | Components of exhaust pipe mountings: vehicles with manual gearbox → Fig., vehicles with multitronic gearbox → Fig. |
| q | Align exhaust system so it is free of stress → Chapter |
| 5 - | 27 Nm |
| q | Renew |
| 6 - | Gasket |
| q | Renew |
| 7 - | Starter catalytic converter |
| q | Protect against knocks and impact |
| q | Removing and installing → Chapter |
| q | Align exhaust system so it is free of stress → Chapter |
| 8 - | 27 Nm |
| q | Renew |
| q | Coat with high-temperature lubricant; for high-temperature lubricant refer to → Parts catalogue |
| 9 - | Gasket |
| q | Renew |
| 10 - | Turbocharger |
| q | Renew gasket between turbocharger and starter catalytic converter |
| 11 - | Front clamp(s) |
| q | Before tightening, align exhaust system so it is free of stress → Chapter |
| q | Installation position on one-piece catalytic converter → Fig. |
| q | Installation position on two-piece catalytic converter → Fig. |
| q | Tighten bolt connections evenly |
| 12 - | M8 = 23 Nm; M10 = 40 Nm |
| 13 - | 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 |
| 14 - | 23 Nm |
| 15 - | Mounting |
| q | Renew if damaged |
| q | Check preload → Chapter „Stress-free alignment of exhaust system“ |
| 16 - | 23 Nm |
| 17 - | 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 |
| 18 - | Clamp (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 → Fig. |
| q | Tighten bolt connections evenly |
| 19 - | M8 = 23 Nm; M10 = 40 Nm |
| 20 - | Mounting |
| q | Renew if damaged |
| q | Check preload → Chapter „Stress-free alignment of exhaust system“ |
| 21 - | 23 Nm |
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