XC90 2.5T AWD L5-2.5L Turbo VIN 59 B5254T2 (2003)
Transfer the rear and front heated oxygen sensors (HO2S). Use tool 999 5543 Socket NV-22 HO2S See: Tools and Equipment/999 5543 Socket
Caution! Do not mix up the heated oxygen sensors (HO2S).
Installing the three-way catalytic converter (TWC)
Note! For tightening see Tightening torque See: Engine/Specifications/Mechanical Specifications/Tightening Torque.
Note! To ensure that there is no exhaust leakage, see: Flanged joint, assembling See: Exhaust Pipe/Service and Repair/Flanged Joint,
Lubricate the studs on the turbocharger (TC). Use paste, P/N: 1161408. Avoid skin contact with the paste.
the three-way catalytic converter (TWC). Use new nuts and gaskets. Tighten. See Tightening torque See: Engine/Specifications/Mechanical
the wiring for the rear heated oxygen sensors (HO2S) using the clips and the clamps. Connect the wiring
the rubber mounting for the three-way catalytic converter (TWC)
the lower screw in the heat deflector plate above the turbocharger (TC)
the SIPS (side impact protection system) member. Secure the brake pipe to the member
the lower engine cover.
Lower the car.
Install the wiring for the front heated oxygen sensor (HO2S) using clips and clamps. Connect the wiring.
Start the engine. Check for exhaust leakage.