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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Exhaust System, Emission Controls (4-Cylinder Direct Injection 2.0L 4V TFSI Engine (Ea 888EVO4))) >> 26 Exhaust System, Emission Controls >> Exhaust Pipes/Mufflers >> Front Muffler, Removing And Installing >> Front Muffler, Removing And Installing, Vehicle Without Particulate Filter >> Removing

Front Muffler, Removing And Installing, Vehicle Without Particulate Filter: Removing

WARNING: This page is about a different variant/trim than selected.

-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Remove the nuts -1- from the front muffler accessible from the top.

Fig 1: Threaded Connection - Front Muffler, Vehicle without Particulate Filter
GWWA26-11665Courtesy of AUDI OF AMERICA, LLC

-- Remove the rear noise insulation. Refer to OVERVIEW - NOISE INSULATION .

Audi A6/A7

-- Remove the front tunnel brace. Refer to OVERVIEW - UNDERBODY BRACING .

Continuation for All Vehicles:

-- Remove the nut -2- and bolt -3- for the front muffler.

-- Remove the front muffler bolts -arrows-.

Fig 2: Identifying Bolts
GWWA26-11144Courtesy of AUDI OF AMERICA, LLC
GWWA26-11726Courtesy of AUDI OF AMERICA, LLC

-- Loosen the clamping sleeve -arrows- and push toward the rear.

CAUTION:

Risk of damaging the coupling due to improper handling.

- Coupling must not be bent more than 10°.

- Do not load the coupling on the cable.

-- Remove the front muffler.