Preliminary Work

Drain coolant.
- WM, 193817 - DRAINING AND FILLING COOLANT (R4)
Remove catalytic converter.
- WM, 267319 REMOVING AND INSTALLING CATALYTIC CONVERTER WITHOUT PARTICLE FILTER (R4) or WM, 267319 REMOVING AND INSTALLING CATALYTIC CONVERTER WITH PARTICLE FILTER (R4)
Loosen oxygen sensor upstream of catalytic converter from the turbocharger.
- WM, 246919 REMOVING AND INSTALLING OXYGEN SENSOR UPSTREAM OF CATALYTIC CONVERTER (R4)
Remove air cleaner housing.
- WM, 242519 REMOVING AND INSTALLING AIR CLEANER HOUSING (R4)