A4 Mk2
Exhaust system - exploded view of components |
1 - | Exhaust manifold |
q | Removing and installing → Chapter |
2 - | Gasket |
q | Renew |
3 - | Lambda probe -G39- (before catalytic converter), 55 Nm |
q | Threads of new lambda probes are already greased with assembly paste; the paste must not get into the slots on the probe body |
q | When re-using the old lambda probe, grease thread with high-temperature lubricant; the paste must not get into the slots of the probe body; High-temperature lubricant → Parts catalogue |
q | Removing and installing → Simos injection and ignition system (4-cyl.); Rep. Gr.24 |
4 - | Lambda probe after catalytic converter -G130-, 55 Nm |
q | Threads of new lambda probes are already greased with assembly paste; the paste must not get into the slots on the probe body |
q | When re-using the old lambda probe, grease thread with high-temperature lubricant; the paste must not get into the slots of the probe body; High-temperature lubricant → Parts catalogue |
q | Removing and installing → Simos injection and ignition system (4-cyl.); Rep. Gr.24 |
5 - | Catalytic converter |
q | Protect from damage by knocks and impact |
q | Removing and installing → Chapter |
6 - | Gasket |
q | Renew |
7 - | 25 Nm |
8 - | 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 |
q | Align exhaust system so it is free of stress → Chapter |
9 - | Clamp (front) |
q | Align exhaust system so it is free of stress before tightening clamp → Chapter |
q | Installation position of bolts → Fig. |
q | Tighten bolt connections evenly. |
10 - | M8 -23 Nm-; M10 -40 Nm- |
11 - | Spacer sleeve |
12 - | Buffer |
13 - | Bracket |
14 - | Washer |
15 - | 30 Nm |
16 - | Mounting |
q | Renew if damaged |
17 - | Mounting |
q | Renew if damaged |
18 - | 25 Nm |
19 - | Rear silencer |
q | Combined in one unit with centre silencer as original equipment. Can be renewed individually for repair purposes |
q | Cutting location → Anchor |
q | Renewing tailpipe → Fig. |
q | Align exhaust system so it is free of stress → Chapter |
20 - | Clamp (rear) |
q | For separate replacement of centre and rear silencers |
q | Align exhaust system so it is free of stress before tightening clamp → Chapter |
q | Installation position of bolts → Fig. |
q | Tighten bolt connections evenly. |
q | M8 -23 Nm-; M10 -40 Nm- |
21 - | Centre silencer |
q | Combined in one unit with rear silencer as original equipment. Can be renewed individually for repair purposes |
q | Cutting location → Anchor |
q | Align exhaust system so it is free of stress → Chapter |
22 - | Mounting |
q | Renew if damaged |
23 - | 25 Nm |
24 - | 25 Nm |
25 - | Mounting |
q | Renew if damaged |
26 - | Bolt |
27 - | Washer |
28 - | Compression spring |
29 - | Spacer sleeve |
30 - | 25 Nm |
31 - | 40 Nm |
q | Renew |
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