Front exhaust pipe with Three Way Catalytic (TWC) converter (left side), removing and installing: Removing

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2004 Audi A6, 2003 Audi S6, 2003 Audi A6, 2002 Audi S6, and 2002 Audi A6. However, it is still accessible from the selected car via links, so may be relevant.

Remove engine cover panel -arrows-.

Fig 1: Removing Engine Cover Panel
Courtesy of AUDI OF AMERICA, INC.
Remove cover above left cylinder head.
Remove air intake -arrows- between air cleaner and throttle body.

Fig 2: Removing Air Intake -Arrows- Between Air Cleaner And Throttle Body
Courtesy of AUDI OF AMERICA, INC.
Disconnect connector -2- for oxygen sensor after Three Way Catalytic Converter (TWC) and move wiring aside.

Fig 3: Locating Connector -2- For Oxygen Sensor After Three Way Catalytic Converter (TWC)
Courtesy of AUDI OF AMERICA, INC.
Remove upper bolt between exhaust pipe and exhaust manifold.
Disconnect connector for oxygen sensor on left side -arrow- and move wiring aside.

Fig 4: Disconnecting Connector For Oxygen Sensor On Left Side
Courtesy of AUDI OF AMERICA, INC.
From below loosen lower bolts -arrows- securing exhaust manifold to front exhaust pipe.

Fig 5: Locating Lower Bolts Securing Exhaust Manifold To Front Exhaust Pipe
Courtesy of AUDI OF AMERICA, INC.
Remove exhaust pipe from retainer bracket -arrow-.

Fig 6: Removing Exhaust Pipe From Retainer Bracket
Courtesy of AUDI OF AMERICA, INC.
Loosen double clamp -1- and push toward front.

Fig 7: Locating Double Clamp -1-
Courtesy of AUDI OF AMERICA, INC.
Carefully take out exhaust pipe.

CAUTION: DO NOT bend swivel joint of exhaust pipe by more than 10° to prevent damage.