Overview - Muffler: Notes

WARNING: This page is about a different car, the 2018 Audi A6 Quattro, 2017 Audi A6 Quattro, and 2016 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Exploded View Of Muffler (CREC, CRED & CREH)

Courtesy of AUDI OF AMERICA, LLC

Bolt
- 20 Nm
Mount
- Replace if damaged
- Check pretension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
Nut
- 23 Nm
Front Clamping Sleeve
- Installed Position. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION
- Pushed all the way onto the front muffler
- Before Tightening, Align Exhaust System Free Of Tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
- Tighten threaded connections evenly.
Bolt
- 20 Nm
Mount
- Replace if damaged
- Check pretension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
Center Muffler
- Original equipment as one unit with rear mufflers. For repairs, replace each separately
- For removal if necessary remove the diagonal brace. Refer to DIAGONAL BRACES, REMOVING AND INSTALLING .
- Separating point. Refer to EXHAUST PIPES/MUFFLERS, SEPARATING .
- Exhaust system, installing without tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
Seal
- Replace after removing
Nut
- 23 Nm
- Replace after removing
Front Muffler
- With decoupling element, decoupling element must not be bent more than 10° - otherwise it may be damaged
- Removing and installing. Refer to FRONT MUFFLER, REMOVING AND INSTALLING .
- Exhaust system, installing without tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
Mount
- Replace if damaged
- Check pretension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
Nut
- 23 Nm
Rear Muffler
- Original equipment as one unit with center muffler
- The center muffler and the rear muffler can be replaced individually if a repair is required.
- For removal if necessary remove the diagonal brace. Refer to DIAGONAL BRACES, REMOVING AND INSTALLING .
- Separating point between the center and rear muffler. Refer to EXHAUST PIPES/MUFFLERS, SEPARATING .
- Exhaust system, installing without tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
Nut
- 23 Nm
Rear Clamping Sleeve
- For individual replacement of center and rear mufflers
- Installed position. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION
- Before tightening, align exhaust system free of tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
- Tighten threaded connections evenly.