I sent my car for reply, idling prob, mechanic has now stuffed something electric/electronic on the car. Car runs but has very low power. He has admitted he has made an error. Now he is getting someone from Bosch to come and look at it. Did Bosch make any of the major electronics on these Audis?

I believe they use motronic, which is a Bosch injection system. The ABS is Bosch as well iirc and possibly the trans ECU.

The cruise and power locks are probably Hella and the airbag controller something else.

Thanks for the reply. At least I know it will be someone who knows what they are doing!