exhaust system, heating air supply
Oxygen sensor in front of catalytic converter Cayenne cyl. 1-3 (11-12).
Oxygen sensor in front of catalytic converter Cayenne cyl. 4-6 (11-12).
Oxygen sensor after catalytic converter left Cayenne (11-12).
Oxygen sensor after catalytic converter left Cayenne (11-12).
Oxygen sensor in front of catalytic converter Cayenne (11-12).