Where is the Jetta electronic fan relay?

Jetta electronic fan relay is in the fuse box in the front engine compartment. The working principle of electronic fan is that the automobile electronic fan is controlled by thermostat. When the water temperature rises to the upper limit, the thermostat turns on the power fan and starts to work. When the water temperature drops to the lower limit, the thermostat turns off the power fan and stops working. The following are the reasons why the electronic fan does not turn: 1, the motor is poorly lubricated and cannot be dragged after the fan blade is installed; 2. Overheating of the motor Overheating of the motor will also cause the load capacity of the motor to deteriorate, and the effective power of the motor will become lower, resulting in the inability to drive the load; 3. When the starting capacitor capacity becomes smaller, the capacitor capacity will become smaller, resulting in a smaller starting torque of the motor and inability to drive the load; 4. The motor is used for a long time. If the electric fan is used for a long time, the motor will wear out, and the shaft sleeve of the motor will be easily burned out after wear. Long-term use of the motor will also increase the internal resistance of the motor and decrease the load capacity, resulting in the inability to drive the blades to rotate.