Cayenne GTS (9PA) V8-4.8L (2008)
4. Unscrew two coolant pipe screws on the converter bell housing -arrow-. Loosen the coolant pipe.
5. Remove sheetmetal holders for the primary catalytic converter -6, 7, 10-.
CAUTION:
Studs and nuts not loosened correctly
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Studs break off exhaust manifold
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Replace damaged exhaust manifold.
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Spray the studs and nuts on the exhaust manifold with compressed air to clean them, then spray on antirust agent and leave it to take
effect before loosening them.
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Loosen nuts carefully. Loosen the nuts by carefully turning them back and forth if they are very stiff.
6. Carefully loosen the flange nuts using a change-over ratchet and several extensions. -2- - Flange bolts securing primary catalytic converter to
exhaust manifold