Hey. I'm having some major problem with my car,bought it second hand, came winter and as soon as ambient temperature dropped below +5°c I noticed that my cars engine doesn't want to heat up properly. Needless to say that it happened also after an Audi recall remapping. At first thought that it's thermostat,obviously,changed it - didn't solve the problem. After that I changed the temperature sensor (Coolant temperature sender), also no change. The temperature doesn't go above 65°c and on a constant speed of 110 km/h drops to around 50. 10'000 km ago changed the water pump (set with drive belt'n'stuff) Anyone of you maybe had a similar problem and knows the solution for it?