Right then guys, ive had my car about 5 weeks now. I replaced the thermostat and that didn't really seem to make a difference. So I bought a oem equivalant stat, and all was well for a couple of days and then the gauge didn't seem to get much past the 50 degree mark. So I bought a genuine temp sensor, and its made no difference. Oh, its a 2003 1.9tdi 130 avant.