Audi Workshop Service and Repair Manuals

Special tools, workshop equipment, and other items required

• ◆ Hose clamps 3094
• ◆ Adhesive sealant

=> Parts List

Removing

• ‒ → Remove engine cover -arrows-.

• ‒ → Disconnect the air duct hose -3- from the air mass meter.
• ‒ Unplug connector -4- at air mass meter.
• ‒ Disconnect hoses -1- and -2- from the air cleaner housing.
• ‒ Unscrew bolts -5- and -6-.
• ‒ Remove air cleaner housing.

• ‒ → Disconnect hoses -1- and -3-.
• ‒ Remove the air duct, release spring clamp -2- for this purpose.

• ‒ → Remove bolts -1- and -2-.
• ‒ Disconnect hose -3- to ACF.
• ‒ Detach connector -4- at throttle valve control part -J338.

• ‒ → Clamp off coolant hoses with hose clamps 3094.
• ‒ Disconnect the coolant hoses at the throttle valve connection.

• ‒ → Remove throttle valve connection -arrows-.

• ‒ → Detach the vacuum hose -arrow- to the brake servo at the intake manifold.
• ‒ Turn the breather housing clockwise and remove from the cylinder head.
• ‒ Close off the openings in the cylinder head cover with a clean cloth.

• ‒ → Unplug connector -1- at intake manifold changeover valve -N156.
• ‒ Disconnect vacuum hose -2-.

• ‒ → Remove the two bolts arrow on the rear intake manifold mounting (one on the left, one on the right) -arrow-.

• ‒ → Remove bolts -1- and -2-.
• ‒ Where fitted, lever off the clips -1- and -4-.
• ‒ Pull the retaining lugs slightly to the side to release -arrows-.
• ‒ Press off the upper section of the intake manifold from the lower section rearwards.

Note:

Close off the intake ports of the intake manifold (lower section) with clean cloths.

Installing

Installation is carried out in the reverse order; note the following:

Note:

Replace seals and gaskets.

• ‒ Bond the sealing rings onto the lower section of the intake manifold, between the upper and lower sections of the manifold, with adhesive sealant.
• ‒ Adhesive sealant

=> Parts List

• ‒ Push the upper section onto the bottom section of the intake manifold and bolt into place.
• ‒ Allow the retaining lugs on the left and right to engage and secure each with a clip.
• ‒ Coat the collar of the bolts for the rear intake manifold mounting with silicone-free lubricant and tighten.
• ‒ Lubricant

=> Parts List

• ‒ Top up coolant .

Tightening torques