Overview - Muffler, Vehicles With Two Turbochargers Without Selective Catalytic Reduction System: Notes
WARNING: This page is about a different car, the 2016 Audi A7 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Muffler Components Exploded View (W/ Two Turbochargers W/o Selective Catalytic Reduction System)
- Double pipe
- Original equipment as one unit with rear mufflers.
- The double pipe and the rear muffler can be replaced individually if a repair is required.
- Separating point between double pipe and rear muffler. Refer to EXHAUST PIPES/MUFFLERS, SEPARATING .
- Align the exhaust system free of tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
- Bolt
- 23 Nm
- Suspended Mount
- Replace if damaged.
- Bolt
- 23 Nm
- Suspended Mount
- Replace if damaged.
- Nut
- 23 Nm
- Always replace
- Seal
- Always replace
- Catalytic Converter
- Individual components of suspension. Refer to 24
- Removing and installing. Refer to CATALYTIC CONVERTER, REMOVING AND INSTALLING, VEHICLES WITH TWO TURBOCHARGERS .
- Nut
- 23 Nm
- Always replace
- Coat the thread with hot bolt paste.
- Seal
- Always replace
- turbocharger assembly
- Front Exhaust Pipe
- With decoupling element, decoupling element must not be bent more than 10° - otherwise it may be damaged
- Protect from shocks and impact stress
- Removing and installing. Refer to EXHAUST PIPE, REMOVING AND INSTALLING, VEHICLES WITH TWO TURBOCHARGERS. .
- Align the exhaust system free of tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
- Nut
- Replace
- 23 Nm
- Seal
- Replace
- Particulate Filter
- Removing and installing. Refer to PARTICULATE FILTER, REMOVING AND INSTALLING, VEHICLES WITH TWO TURBOCHARGERS. .
- After replacing, perform an Adaptation in Guided Functions . Refer to Vehicle Diagnostic Tester.
- Nut
- 23 Nm
- Front clamping sleeves
- Before tightening, align exhaust system free of tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
- Installed position 24
- Tighten threaded connections evenly.
- Nut
- 23 Nm
- Trim
- For the tail pipe
- Push all the way onto the tail pipe
- Suspended Mount
- Replace if damaged.
- Check pretension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
- Nut
- 23 Nm
- Rear Muffler
- Right with Engine Sound Generator Actuator 1 -R257-
- Left with Engine Sound Generator Actuator 2 -R258-
- Original equipment as one unit with double pipe.
- The double pipe and the rear muffler can be replaced individually if a repair is required.
- Separating point between double pipe and rear muffler. Refer to EXHAUST PIPES/MUFFLERS, SEPARATING .
- Align the exhaust system free of tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
- Rear Clamping Sleeve
- For individual replacement of double pipes and rear mufflers
- Before tightening, align exhaust system free of tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
- Installed position 17
- Tighten threaded connections evenly.
- Nut
- 23 Nm