A8L Quattro Sedan W12-6.0L (BSB) (2005)
Oxygen Sensor: Service and Repair
Left Front Heated Oxygen Sensor before Catalytic Converter
Left Front Heated Oxygen Sensor before Catalytic Converter
Special tools, testers and auxiliary items required
‹› Ring spanner 7-piece set (3337)
Removing
‹› All cable ties which are opened or cut open when removing, must be replaced in the same position when installing.
-
Activate vehicle lifting mode.
-
Remove left front wheel.
‹› Secure the brake disc with wheel bolts.
-
Remove front part of left front wheelhouse liner.
-
Pull off both air duct hoses - arrows - at bottom of left air filter housing by pressing release buttons.
-
Separate electrical connector - 3 - for Mass Air Flow (MAF) sensor 2 (-G246-).
-
Disconnect hose - 2 - from air duct hose.
-
Disconnect air duct hose - 1 - at intake manifold.