WAUZZZ8Z52N016587This is how to use AC - Climate Control Temperature like Speed counter, rmp counter, temperature, and much more. Instructions below : ---Changing Degree Temperature Display--- Press and hold the recirculation button. Then press the temperature up ("+") button to switch between degrees Celsius & Fahrenheit on the Climate Control Temperature and Instrument Panel Outside Temperature displays. ---Accessing On-Board Diagnostic codes--- Press and hold the recirculation button. Then press the manual flow control up arrow. You should see a 1c. Press the temperature up ("+") or down ("-") buttons to select a code number. Then press the recirculation button again. The value should display. Press the temperature up or down button again to display another code. Here is some code : 2,3 - inside temperature 5,6 - outside temperature 16 - Specified value of Air Flow Flap 17 - Vehicle Speed (km/h) 18 - Actual Air Blower voltage (Volts) 20 - A/C Compressor (A/C Clutch) voltage (Volts) 26 - Analog/Digital value, Engine Coolant Temperature (ECT) Warning Light 28 - Engine Speed (RPM) 51 - Engine Coolant Temperature (ECT) in deg C Audi A4 A3 A2 A5 A8 R8 , 1.8 125PS , turbo , quattro , remote , exhaust , remus , led style , AC control , preoblems diagnostic , race , yamaha , suzuki , harley , KTM , 2.8 , 2.4 , porn,