Evening chaps, so got a bit of an issue with my S4. It passed its MOT with no advisories about 3 weeks ago so got a mini service done at same time too, fast forward a week and I'm joining the motorway, put the foot down and something didn't feel right. It wouldn't boost as hard as it normally does and felt like it was misfiring slightly. Que squeaky bum time and bad thoughts of ££££! I parked it at home and never drove it till it went to my mechanic last week. What I noticed then was when the engine was turned on the revs idled too high and were erratic. Also when changing gear the revs would stick for a second or 2 before dropping back down. Great I thought, I'll just clean the MAF but it made no difference. Left it with my mechanic hopping for the best. Mechanic can't find any faults, no codes and says ignition coils are fine?? Drove home and it felt a bit better but still not 100%. Now it's back to poor idle, feels down on power and won't rev above 5000rpm, it feels like its hitting a rev limiter. Also the clutch is starting to whine a little when you touch the pedal, I take that's on it's way out too?? I've bought a new MAF in the off chance that'll solve it but won't be here till Tues/Wed. Any advice appreciated, sorry for the novel!