A8L Quattro Sedan W12-6.0L (BSB) (2005)
-
Detach both retainers and engine control module from plenum chamber electronics box.
-
Move the engine control module to the side with the connectors still connected.
-
Turn air quality sensor (G238) - item 1 - counter-clockwise 90° and remove sensor from mount.
-
Release the retaining clips - arrows -.
-
Open plenum chamber electronics box cover slightly and pull off to front.
-
Unplug multi-connectors - 1 -.