I had the lumpy idle, restricted power, and misfires all happen the other day.
Didnt think it was the coilpack as audi fitted the revised ones not long ago, so avoiding the steep diagnosis that audi charge I booked it in at a local independant garage, and the problem was one Iv never heard mentioned on posts before.
Apparently it was a rear depth throttle body that needed tweaking, which to my surprise only cost me £40.
The worry is that the guy told me that if it re occurs then he was pretty sure it would be the throttle bodies themselves, and as you cant fit second hand ones, it would cost over £500.
Up to now it is running fine again, but this is a concern for me if it does happen again.
Does anyone know if this will be a permanent fix, or is it likely I will need new throttle bodies?
He also mentioned a turbo sensor, which causes it to hold back at times, though I dont think this is the cause for the misfires.
Thought Id mention this to anyone who is having the same trouble and hasnt had the revised coilpacks fitted, though Im no expert, it is just a possibility.