C70 Coupe L5-2.3L Turbo VIN 53 B5234T3 (2001)
Catalytic Converter: Procedures
Replacing The Three-way Catalytic Converter (TWC)
Special Tools: 999 5543, 999 5972.
NOTE: As the illustrations in this service information are used for different model years and/or models, some variation may occur. However, the
essential information in the illustrations is always correct.
Removing The Three-way Catalytic Converter (TWC)
Remove
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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).
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the nuts for the front exhaust system connection to the turbocharger/manifold.
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the SIPS member.
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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 999 5972 as support.
Transferring Components
