Removing the three-way catalytic converter (TWC)

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Front Exhaust System Connection, Turbocharger/Manifold And Nuts

Courtesy of VOLVO CARS OF NORTH AMERICA.

Remove

the left front wheel. Applies to B52x4T.

Disconnect the heated oxygen sensor (HO2S) connectors.

Release the heated oxygen sensor (HO2S) wiring from its mountings.

NOTE:

Applies only to B52x4T:

Remove the lower rear screw for the heat deflector plate above the turbocharger (TC)

the nuts for the front exhaust system connection to the turbocharger/manifold
the SIPS member
the clamp where the exhaust system divides downstream of the three-way catalytic converter (TWC).

Lift off the exhaust pipe from the turbocharger (TC)/manifold and the rear system.

Lower/draw down the exhaust system.

HINT: Use a mobile jack with universal plate 9995972 as support.