John15

Hi. I have a 2002 Citroen C3 1.4 petrol. For several months I'm trying to solve a problem but fail. After 15-20 minutes of operation temperature indicator rises sharply from 3 lines to maximum, radiator fan starts and stops after a few seconds (perhaps after liquid have cooled), then the temperature returned to normal. Some mechanics told me that the cooling fan is faulty and therefore should be changed. Others said that the temperature sensor is faulty. Today I wanted to see where this sensor is but I could not find him. In the attached picture you will see two sensors, noted with A and B. I mention that after I unplug sensor A, the fan starts suddenly but does not stop , stopping only when I pluged it back. In the second picture you can see that the cooling fan has a small block. Mechanics said that the cooling fan would not go without it. What should I do/change? Thx.