Audi Workshop Service and Repair Manuals

Removing and installing secondary air pump

Removing –  Unfasten screw connections -arrows- and detach engine cover panels -A ... C-.

–  Unscrew hose connections and bolt connections on the air duct at the points indicated by -arrows- and remove the air duct.

–  Unbolt coolant expansion tank -2--arrows-. –  Unplug electrical wire for coolant shortage indicator switch -F66- at bottom of expansion tank and move expansion tank to one side with coolant hoses -1- and -3- attached.

–  Detach vacuum line -arrow- going to brake servo at bulkhead.

–  Detach vacuum pipe -1-. –  Detach connecting hose leading to combination valves for secondary air at the point indicated -2 ... 4-.

–  Unplug electrical connector -2-. –  Remove bolts -1-. –  Slacken nut -3- a few turns. –  Lift out secondary air pump. Installing Installation is carried out in the reverse order; note the following:   Note Secure all hose connections with the correct type of hose clips (same as original equipment) → Parts catalogue. Tightening torques

Component		Nm
Secondary air pump to:	Intake manifold	10
	Coolant pipe	10
Air duct to intake manifold		10