Audi Workshop Service and Repair Manuals

Removing and installing intake manifold

Removing –  Drain off coolant → Chapter. –  Remove coolant pipe (top) → Chapter. –  Detach vacuum hose -3- going to brake servo from vacuum booster. –  Detach vacuum hose leading to solenoid valve 1 for activated charcoal filter system -N80--item 1-.   Note Disregard -item 2-.

–  Unplug electrical connector -1- at throttle valve module -J338-. –  Detach coolant hose -2-.

–  Detach electrical connector -1- at intake air temperature sender -G42- and connector -2- at variable intake manifold change-over valve -N156-.

–  Unplug electrical connector -arrow- at Hall sender -G40-.

–  Unscrew fuel rail securing bolts and disconnect vacuum pipe from fuel pressure regulator -arrows-. –  Pull fuel rail off intake manifold together with injectors and set it down on a clean cloth at rear of engine compartment.   Note Make sure the removed injectors do not become soiled.

–  Pull out dipstick -1-. –  Unscrew bracket for dipstick guide tube. –  Unscrew and remove intake manifold -arrows-.   Note Block off intake ports in cylinder head with clean rags. Installing Installation is carried out in the reverse order; note the following.   Note t  Renew gaskets, seals and O-rings. t  Secure all hose connections with the correct type of hose clips (same as original equipment) → Parts catalogue. –  Install coolant pipe (top) → Chapter. –  Fill cooling system → Anchor. Tightening torques

Component		Nm
Intake manifold to:	Cylinder head	10
	Support	20
Fuel rail to intake manifold		10