Hello all, ive got a problem with my audi a3 1.8t, 2001. About a month ago the engine management light came on, so i got vag out, and came up with 1 error - 17704 - Error in Mapped Cooling System (usually temp Sensor or Thermostat). So i went for the cheapest option and bought a temp sensor, may i add, before i fitted the new temp sensor, my car was getting up to temprature within 5 mins, sitting on 90. Now with the new one fitted, my car didn't warm up even after driving 40 miles, the maximum temprature it got up to was about 80. I just find this very odd, and im a little confused to why my cars behaving like this ? should i change my thermostat aswell ? i need help lol Cheers.