I'm getting no codes on mine ether but the tech who took it out on test said it ain't normal and is really bad!
I get juddering really bad on idle and get popping noises through exhaust!!
Mine is a 2007 '57' done 41823 miles!
still on going mate ,Noticed the TTS stumbling now, minor misfiring. Rob, I remember following your tale of woe. Where did you get to with it?
I had the same problem on my 57 reg Cupra about a year ago, juddering at idle and also hesitation when accelerating on a light throttle. Was still under warranty so went back to the garage, they diagnosed a misfire in cylinder 3, they began by replacing the coil pack however this didn't sort the problem and it was in fact the injector. Injector was replaced and has been fine (touch wood) for a year now. Hope this helps!