Yes thats right, my dealer called me a week or two after I had mine to say the spark plugs needed changing, so got it done. Don't know anymore details than this though I'm afraid, car still runs the same. I did hear from someone it was something to do with the car having problems if you started it and didn't let it run for very long before switching off. Don't know anymore than this though, sorry
My dealer mentioned to me 2 weeks after I got my RS4 that the plugs are virtually racing grade and when the car is started it should be run until it reaches operationg temperature before switching off.
They had to replace the plugs on a few cars as they had started misfirng as a result of this.
There has been no universal recall as far as I know, they seem to be dealing with customers on an as required basis.
I had one incident where I started the car and it fired up but it was really struggling to keep ticking over. I switched off, tried again and all was ok, wonder if this incident was related to this issue?