audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Exhaust System|Locations|Page 3796 > < Left Front Exhaust Pipe With Primary and Main Catalytic Converter, Removing and Installing|Page 3792
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Muffler: Locations

Mufflers With Mounts

1. Center muffler

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Factory-installed with rear muffler as one unit. If repair is necessary, replace separately

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Align exhaust system free of stress

2. 23 Nm
3. Support ring

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Replace if damaged

4. Oxygen sensor - 55 Nm

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Behind catalytic converter

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Bank 1, sensor 2

5. 27 Nm

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Always replace

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Tighten uniformly in several stages

6. Exhaust manifold

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Bank 1

7. Gasket

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Always replace

8. Oxygen sensor - 55 Nm

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Before catalytic converter

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Bank 1, sensor 1

9. 27 Nm

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Always replace

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Tighten uniformly in several stages

10. Exhaust manifold

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Bank 2

11. Gasket

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Always replace

12. Oxygen sensor - 55 Nm

Exhaust System|Locations|Page 3796 > < Left Front Exhaust Pipe With Primary and Main Catalytic Converter, Removing and Installing|Page 3792