Audi Workshop Service and Repair Manuals

Removing

• ‒ Drain cooling system
• ‒ → Remove engine cover panel -arrows-.

• ‒ → Disconnect secondary air pump intake hose -1- from air cleaner housing.
• ‒ Unscrew bolt -7-.
• ‒ Disconnect air hose -2- from air mass meter.
• ‒ Unplug electrical connector -3- from air mass meter.
• ‒ Unscrew bolts -5- and -6-.
• ‒ Remove air cleaner housing and pull off vent hose -4- from behind.

• ‒ → Unplug electrical connector -3-.
• ‒ Disconnect hoses -1- and -4-.
• ‒ Remove air duct by releasing hose clip -2-.

• ‒ → Unbolt coolant flange from cylinder head (left) -arrows- and place it to one side.

Note:

Leave coolant hoses connected.

• ‒ → Unplug electrical connector -3-.
• ‒ Disconnect vent hose -2-.
• ‒ Unscrew bolts -1-, -4- and -5- and detach exhaust gas recirculation valve -N18.

Note:

Shown in illustration with engine removed.

• ‒ → Disconnect hoses -2- and -3-.
• ‒ Unscrew bolts -1- and remove combination valve for secondary air system.

Installing

Install in reverse sequence; note the following points:

Note:

Replace gaskets and seals.

Tightening torques