A8L Quattro Sedan W12-6.0L (BSB) (2005)
-
Remove the air guide hose - 1 - from the intake manifold.
-
Remove the screws - arrows -.
-
Remove the air filter housing left upper section.
-
Remove the air duct - 1 -.
-
Remove the screws - arrows -.
-
Remove the air filter housing lower left section.
-
Remove the engine cover upward, first at the rear and then in the center - 1 arrows -.
-
Remove the engine cover forward from the intake manifold - 2 arrows -.
-
Rotate the tensioner in the - direction of the arrow - to release the ribbed belt tension.