Audi Workshop Service and Repair Manuals

Removing and installing exhaust manifold (left-side) with intermediate pipe Removing   Note The exhaust manifold (left-side) can only be removed together with the intermediate pipe (left-side). l  Lock carrier must be in service position → Chapter.

–  Detach caps on engine cover panel. –  Unbolt and remove engine cover panel -arrows-. –  Remove poly V-belt for air conditioner compressor → Chapter.

–  Remove cover -arrow- at power steering fluid reservoir.

–  Unplug connector -arrow- for magnetic clutch for air conditioner compressor and move wiring clear.

–  Detach the two refrigerant line brackets -1- and-3- from sump.

WARNING Risk of injury caused by refrigerant. The air conditioner refrigerant circuit must not be opened. –  Unbolt air-conditioner compressor from bracket -arrows-.

Caution Danger of damage to refrigerant lines and hoses. Do NOT stretch, kink or bend refrigerant lines and hoses. –  Tie up air conditioner compressor onto subframe, leaving refrigerant lines connected -arrow-.

–  Remove heat shield above turbocharger -arrows-.

–  Unbolt front exhaust pipe from connection for turbocharger -arrows-.

–  If installed, remove cross member -1-.   Caution Risk of damage to flexible joints in front exhaust pipe Do not bend flexible joints in front exhaust pipe more than 10°. –  Remove front exhaust pipe together with catalytic converter -arrows-.   Note Shown for vehicle with front-wheel drive in illustration.

–  Unscrew nuts -arrows- for exhaust manifold (accessible from below).

–  Unbolt coolant expansion tank -arrows 1-. –  Detach wire for coolant shortage indicator switch -F66- and move coolant expansion tank to one side with coolant hoses -2- attached.

–  Unbolt exhaust pipe from turbocharger -arrows- (accessible from above). –  Take out exhaust manifold with intermediate pipe upwards. –  Separate exhaust manifold and intermediate pipe if necessary. Installing Installation is carried out in the reverse order; note the following:   Note Renew gaskets and self-locking nuts. –  Note installation position of gaskets for exhaust manifold: l  Aluminium side should face towards cylinder head –  Install front exhaust pipe with main catalytic converter: vehicles with front-wheel drive → Chapter, vehicles with four-wheel drive → Chapter. –  Align exhaust system so it is free of stress: vehicles with front-wheel drive → Chapter, vehicles with four-wheel drive → Chapter. –  Install poly V-belt for air conditioner compressor → Chapter. Tightening torques

Component		Nm
Exhaust manifold to cylinder head		22
Intermediate pipe to:	Exhaust manifold	22
	Intermediate flange	22
Front exhaust pipe with catalytic converter to:	Turbocharger	25
	Gearbox support	25
Heat shield to turbocharger		10
Air conditioner compressor to bracket		22
Underbody cross member to body		20