I recently had my Audi behave really strange, It really felt like a coil on its way out, the juddering and loss of power, but then I would restart the car and it would be ok. I took the car into my local mechanic who quickly spotted an air hose had split and said this was causing he fault code of the mixture being too lean. Within a week or so the car did it again after a 30 mile trip, but after turning off the engine it almost felt like it was flooded when I tried a restart, after 5 mins the car then strarted ok and all was well. It has been on the diagnostics to check coils and all is well, no engine management light at all.
I have been searching the net and found people pointing towards the crankcase breather valve?
Can anyone help.
many thanks, Chocolatedobe