A6 2.7 S-Line Quattro Auto throttle problem

[Dobbo999]

Any member had this before?

2 years and all I have had is a blown side light bulb, today I have noticed that when I accelerate and lift my foot off the throttle the engine continues to rev high for about 1.5-2seconds and then settles.

Had her on the diagnostics machine which has no faults, pending or otherwise but it does appear from observations that the pedal is not returning quickly and does so slowly hence why I think the engine is still revving. Is the 06 model fitted with a cable throttle and could it be sticking or is it something to do with the pedal itself?

Aside from that the car runs perfectly, only noticed it because I didn't use cruise control today