Left work this evening and staight out of the car park could feel loss of power in low gears..and then it came back... and then it went again...on motorway...slow....then fast...made the drive home interesting anyway! Didn't really matter what gear I was in; tried foot to the floor and everything in between but it just seemed random when the turbo came back to life again. No warning lights on the dash, just alarm bells in head. Bought the car recently (3k ago) - 46k on clock, 55 A4 S-Line TD(i?!) - just had its 40k service at Preston Audi in Feb this year but last week oil light went on which I thought was wierd - but suppose 6k miles @0.5litre/1000miles maybe adds up. Got a one year warranty (Audi Assured something? & Roadside Assistance) from previous owner until Feb 11 so will try Audi tomorrow - if they tell me to stuff my warranty, are there any decent indy dealers anyone can recommend in Manchester? Cheers - any advice appreciated!