Original Temperature and Fuel Stepper motors will be reinstalled and calibrated to factory specification. It is assumed that you are not experiencing false overheating (faulty Temperature motor) or false/high fuel level reading (faulty Fuel gauge). When the Temperature and Fuel stepper motors fail, they will start shifting to the right indicating overheating or more fuel than actual. Based on our service experience, 90% of Audi TT instrument clusters arrive with at least one failed stepper motor for Temperature or Fuel.