Overview - Muffler, AWD Vehicles

WARNING: This page is about a different car, the 2020 Audi A4, 2019 Audi A4, 2018 Audi A4, and 2017 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Location Muffler, AWD Vehicles

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Center Muffler
- Original equipment as one unit with rear mufflers. If a repair is required replace each separately
- Separating point. Refer to EXHAUST PIPES/MUFFLERS, DISCONNECTING .
- Exhaust System, Installing without Tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
Retaining Loop
- Replace if damaged
- Exhaust System, Installing without Tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
Bolt
- 23 Nm
Bracket
Front Muffler
- With a coupling
  CAUTION:
  Risk of damaging the coupling.
  - Coupling must not be bent more than 10°.
  - Do not load the coupling on the cable.
  - Do not damage the wire mesh on the coupling.
- Removing and installing. Refer to FRONT MUFFLER, REMOVING AND INSTALLING, VEHICLE WITHOUT PARTICULATE FILTER .
- Exhaust System, Installing without Tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
Seal
- Replace after removing.
Nut
- 23 Nm
Bolt
- 23 Nm
Mount
- Replace if damaged
- Check the pretension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
Front Clamping Sleeve
- Before tightening, align the exhaust system without tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
- Tighten the threaded connections equally to 23 Nm.
- Installation position. Refer to Figure.
Rear Muffler
- Original equipment one unit with the center muffler. If a repair is required replace each separately
- Separating point. Refer to EXHAUST PIPES/MUFFLERS, DISCONNECTING .
- Exhaust System, Installing without Tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
Mount
- Replace if damaged
- Check the pretension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
Bolt
- 23 Nm
Rear Clamping Sleeve
- Before tightening, align the exhaust system without tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
- Tighten the threaded connections equally to 23 Nm.
- Installation position. Refer to Figure.
Bracket
Bolt
- 23 Nm
Retaining Loop
- Replace if damaged
- Exhaust System, Installing without Tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .