Audi S3 8P Turbo Removal Guide

 

Prep:

• Jack up the front end of the S3

• Axle stands under each jacking point

• Remove undertray

• Remove hose going into the auxiliary water pump to drain the coolant system, refit hose & clip when done

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Underside:

• Remove middle exhaust clamp

• Undo exhaust hanger

• Unbolt downpipe from turbo and push the downpipe to the passenger side off the turbo studs

• Remove driveshaft heat shield (awkward I know)

• Remove turbo support bracket completely (it's a struggle I know)

• Unbolt turbo drain from turbo and let it hang (as in photo)

• Unbolt turbo oil feed completely from turbo and engine

• Unbolt turbo coolant feed and let it hang (as in photo)

• Unplug N75 valve on turbo

• Unclip N75 wiring from turbo

• Unclip turbo outlet pipe from turbo and unbolt from side of the engine (as in photo)

• Move turbo outlet pipe to the side

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Topside:

• Remove airbox/induction kit

• Unclip turbo coolant return from next to the timing belt cover

• Remove coolant return hose going into the top of the expansion bottle

• Awkwardly unbolt heat shield/coolant rail as one (2 spline bolts, 2 18mm? bolts)

• Unclip coolant pipe from bulkhead to coolant rail (at the very back)

• Move coolant rail/heat shield over near the battery gently and out the way

• Remove two hoses going to the turbo from the rocker cover (top left of rocker cover)

• Remove top 5 12mm nuts holding the turbo to the engine

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Removal:

• The turbo studs face up at an angle so the turbo will come out as such, the bottom row of nuts do not need touching at all.

• Try and pull the turbo up and back towards the bulkhead and it will eventually come free and come out

• At this point when it's off the studs, with your left hand drop that side down so the N75 area is facing down, turbo should be at a 45° angle coming out

• Wiggle it up and out, mind the exhaust studs on the coolant pipes and the coolant hose next to the timing belt cover getting shagged

• It should come out and look as photographed​