You will need
- - screwdriver;
- - new sensor;
- - wrench set;
- - capacity for coolant;
- - cotton gloves.
Driving the car into the garage and cut the engine. Let the car cool down. It is best to replace in the morning on a cold motor. In any case, do not attempt to replace the sensor just plugged the car! You run the risk of receiving burns from heated parts. Also in the process of operation of the engine coolant reaches a maximum temperature.
Find the location of the sensorand enable the fan in your car. To do this, carefully read the user manual of your car. It should be specified the exact location of the sensorand, as well as instructions on its replacement.
If no instructions, then visit the owners forum for your model car. Surely someone had already changed the sensor and shared their impressions about the procedure.
Drain the cooled liquid from the system. To do this, Unscrew the cap on the radiator. On some models you need to remove the battery to get free access to the drain throat. Do not drain coolant on the ground! It is very poisonous, so can cause irreparable harm to the environment. Try not to inhale the vapors when draining.
Unplug the sensorpads and wires. Do not pull the wire, otherwise you risk to damage it. Only touch the housing of the connector.
Remove the sensor with the key size. Usually need a key to "30". Remove the sensor from the connector. Look carefully the surface.
Check the operation of the sensor. For this you have two options. The first is to measure the resistance at a certain temperature, but it is quite difficult. So you can just connect to the sensorfrom the battery and the bulb via the serial scheme. The lower part of the sensorand dip it in the pot of hot water. If the bulb lights up, the sensor is defective. If not, you need to install a new one.
Install in car gauge with the markings which were on the body of the old. The fact that different sensors have different temperature activation.