I've been having a very strange problem lately. About one in every four or five starts the hot light starts flashing a few seconds after I start up (cold) and stays on about a minute, then goes off, just like the COLD light should. I ran Vag-Com and it didn't find anything. Has anyone had a problem like this? I'm wondering if it's a bad temperature sensor. I'm assuming the same sensor turns on the cold and hot lights. Is that correct? Any help would be appreciated. Thanks! John