A3 Quattro V6-3.2L (BUB) (2008)
Oxygen Sensor: Service and Repair
Oxygen Sensors before Catalytic Converter
Oxygen Sensors before Catalytic Converter
Special tools, testers and auxiliary items required
‹› Ring spanner 7-piece set for oxygen sensor (3337 )
Removing
-
Disconnect vacuum hose - 2 - from air duct hose.
-
Disconnect air guide hose - 1 - at Throttle Valve Control Module (J338).
-
Disconnect Mass Air Flow (MAF) Sensor (G70) electrical connector - 3 -.
-
Remove upper section of air filter housing - arrows -.
-
Remove filter element.
-
Pull off air duct cover - 1 -.
-
Unclip air duct - 2 -.
-
Unbolt lower section of air filter housing - arrows -.