Muffler, assembly overview: Notes
WARNING: This page is about a different car, the 2010 Audi A8, 2009 Audi A8, 2008 Audi A8, and 2007 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.
1 - Center muffler
- Original equipment as one unit with rear muffler. For repairs, replace each separately.
- Separating point → Center muffler and rear muffler, separating
- Install exhaust system free of stress → Exhaust system, installing free of tension
2 - Retaining loop
- Check pretension → Exhaust system, installing free of tension
3 - Nut
- 23 Nm
4 - Bolt
5 - Nut
- Replace
- 25 Nm
6 - Gasket
- Replace
7 - Exhaust manifold with catalytic converter
- Protect from shocks and impact stress
- Removing and installing: Left → Left exhaust manifold with catalytic converter, removing and installing , right → Right exhaust manifold with catalytic converter, removing and installing
8 - Front exhaust pipe
- With flex joint
CAUTION:
Risk of damaging decoupling elements in front exhaust pipe.
- Do not bend decoupling elements in front exhaust pipe more than 10°.
- In original equipment as one unit with front muffler. For repairs, replace each separately.
- Removing and installing: Left → Left front muffler, removing and installing , right → Right front muffler, removing and installing
- Separating point → Front exhaust pipe and front muffler, separating
- Install exhaust system free of stress → Exhaust system, installing free of tension
9 - Front muffler
- In original equipment as one unit with front exhaust pipe. For repairs, replace each separately.
- Removing and installing: Left → Left front muffler, removing and installing , right → Right front muffler, removing and installing
- Separating point → Front exhaust pipe and front muffler, separating
- Install exhaust system free of stress → Exhaust system, installing free of tension
10 - Nut
- 23 Nm
11 - Clamping sleeve in the center
- Position clamping sleeve centrally to separation point
- Installed location → Installation position of front and center clamping sleeves
- Before tightening, align exhaust system so that it is tension-free → Exhaust system, installing free of tension
- Tighten threaded connections evenly.
12 - Front clamping sleeve
- For individual replacement of front exhaust pipe and front muffler
- Position clamping sleeve centrally to separation point
- Installed location → Installation position of front and center clamping sleeves
- Before tightening, align exhaust system so that it is tension-free → Exhaust system, installing free of tension
- Tighten threaded connections evenly.
13 - Nut
- 23 Nm
14 - Suspended mount
15 - Bolt
- 22 Nm
16 - Nut
- Replace
- 23 Nm
17 - End pipe
- Original equipment as one unit with rear muffler. For repairs, replace each separately.
- Separating point → End pipe, replacing
- Aligning → Tail pipes, aligning
18 - Bolt
- 23 Nm
19 - Retaining loop
- Check pretension → Exhaust system, installing free of tension
20 - Rear muffler
- Original equipment as one unit with center muffler. For repairs, replace each separately.
- Separating point → Center muffler and rear muffler, separating
- Install exhaust system free of stress → Exhaust system, installing free of tension
21 - Clamping piece
22 - Nut
- 23 Nm
23 - Rear clamping sleeve
- For individual replacement of center and rear mufflers
- Position clamping sleeve centrally to separation point
- Installed location → Installed position of rear double clamps
- Before tightening, align exhaust system so that it is tension-free → Exhaust system, installing free of tension
- Tighten threaded connections evenly.