When out in the car yesterday I noticed what I think might be signs of slipping clutch but i'm not sure.
I was doing about 65-70 in sixth on a slight incline and pulled into the fast lane to overtake. Pressed the loud pedal as usual (didn't floor it though) and the car started to pull but then hesitated whilst delivering a shuddering feeling through the steering column/car. I immediately backed off, waited a few seconds and tried it again, at which point it seemed ok. Through the rest of the journey I tested it at different speeds in different gears and it seemed to do the same in third gear upwards, generally somewhere between 3k and 4.5k (maybe no coincidence that this is when the remap delivers peak torque?).
I've read other posts and thought it might be clutch slip, but there are none of the other reported signs? The revs don't rise when it happens, they always rise in line with acceleration. I've also tested it by trying to pull away in second gear with handbrake on, but there's no slippage, just some groaning from the rear and it pulls hard.
If it's not the clutch then I thought maybe the MAF? (still on original one I think). I'll get vagcom on it next week sometime but in the interim i'm looking for suggestions.
The car is an S3 225 that was remapped 5 months ago (graph in sig, 306lb torque) and has done 45k.