Decided to go ahead with a K03 to K03S swap on an A3 AGU. Question is whether i DIY it or not. I've read some people saying it was very difficult and others saying its an easy swap! I had a quote for £280 from a garage but in the end i thought i'd give it a go myself - I'm not great at car mechanics but can tackle most things if i have a little instruction! Plenty of threads on The K03S but i couldnt find a decent pictorial guide on doing it. If anyone wants me to update this thread with photos of the procedure i can. Similarly if anyone has done this, and found any bits a little tricky then please post where you got stuck... Here is the list of parts i ordered, as posted elsewhere: 06A 253039E - Gasket - £1.97 1 req'd N0138149 - WASHER - £0.23 - 4 req'd N0138128 - WASHER - £0.19 - 4 req'd 058145757C - GASKET - £1.08 - 1 req'd 058145757A - GASKET - £1.26 - 1 req'd 1J0253115R - GASKET - £2.28 - 1 req'd G12 coolant additive, G012A8FM1 £5.49 I found this exploded view of an A4 1.8T, i take it its the same as the A3: And someones rough outline on the job: http://uk-mkivs.net/forums/p/148196/982687.aspx#982687 I've got a bentley guide on removing the A4 turbo but im not sure i'd be allowed to upload that page here?