Hello, My Temp. & Tank Display has been fluctuating for some time, so I got a voltage regulator for the AI for the friendly one (22€). This should often be the reason for the above mentioned problem. Now I got on it, and when I had the old one out and wanted to use the new one I fell on that the two controllers are different (photo), had to fix even another fixing screw, otherwise I would not have gotten stuck to the new one!! (the supplied one is too short) Question: did the type of Audi give me the wrong one, or was there something changed again in the course of the years? Obviously the new, the temp indicator immediately worked up (this did it just after about a quarter of an hour or not at all, or remained hanging about at 60 Crad). Besides another question: At the AI there are at the top in the middle the control searchers (Bremse oil etc.) there are only three pears in there with me, is that so normal, or missing one? (there was a time in it, if I saw the Kratzine!) (the picture!