Installing the Three-Way Catalytic Converter (TWC): Overview

NOTE: For tightening torques, see Tightening Torque .

NOTE: To ensure that there is no exhaust leakage, see Flanged Joint, Assembling .

Fig 1: Exhaust System Lifted To The Rear System

Courtesy of VOLVO CARS OF NORTH AMERICA.

Lubricate all studs on the turbocharger (TC) using paste, P/N: 11 61 408 .

Lift up the exhaust system and connect it to the rear system.

Then connect to the turbocharger (TC)/manifold.

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

Install

new nuts at the turbocharger/manifold connection.
Tighten to 25 Nm .

NOTE: Ensure that the flange on the exhaust pipe is flush against the turbocharger (TC).

NOTE: Applies only to B52x4T: A new screw in the rear mounting for the heat deflector plate.

Secure the heated oxygen sensor (H02S) wiring at the mounting points. Connect the connectors.

the clamp at the divide downstream of the three-way catalytic converter (TWC).
Use a new clamp and a new screw .

Tighten to 25 Nm
The SIPS member.
Tighten to 25 Nm
the left front wheel. See Installing wheels . Applies to B52x4T.