Hey all, So after driving my A4 (06 plate, 1.9tdi) for a couple of months now I’ve noticed the engine temp goes only slightly above 50 when driving it around normally. The heater is still fairly warm but it’s not hot as I expect it should be. I have had the temperature up to 90 before but that was when I was sitting in traffic and crawling along. Any ideas with this, obviously with winter coming up I’d like the heater to be blasting hot air. Please tell me it’s a cheap fix!