Audi Workshop Service and Repair Manuals

Removing and installing exhaust manifold

Removing –  Unclip air intake hose from air duct -arrows-.

–  Unplug electrical connector at intake air temperature sender 2 -G299--item 2-. –  Detach vacuum hose -1- from actuator for intake air preheater.

–  Pull dipstick -1- out of guide tube. –  Remove the engine cover together with air cleaner housing -arrows-. –  Re-insert dipstick in guide tube.

–  Remove cover -1- over battery. To do so, press release tab -arrow-.

Caution Observe notes on procedure for disconnecting the battery → Rep. Gr.27. –  With ignition switched off, disconnect battery earth cable -arrow-.

–  Detach rubber bellows -1- from air duct -2-. –  Release both retainers -arrows- and detach air duct.

–  Unbolt hot air collector plate -arrows-.

–  Unbolt front exhaust pipe from exhaust manifold -arrows-.

–  Unbolt exhaust manifold from cylinder head -arrows-.

–  Remove centre noise insulation -fasteners 1 ... 3-.

–  Unscrew bolts -arrows- approx. 15 mm. –  Unscrew nut -1- and detach bracket for exhaust manifold. –  Detach exhaust manifold and gasket upwards. Installing Installation is carried out in the reverse order; note the following:   Note Renew gaskets and self-locking nuts. –  Observe notes on procedure for connecting the battery → Rep. Gr.27. Tightening torques

Component	Nm
Exhaust manifold to cylinder head	25 1)
Hot air collector plate to exhaust manifold	10
Front exhaust pipe to exhaust manifold	40 1)
Front exhaust pipe to cylinder block	22
Bracket for exhaust manifold to cylinder block	60
l  1) Renew self-locking nuts.