How do I replace the air conditioner pressure sensor

How do I replace the air conditioner pressure sensor?

In any modern car, air conditioning freon pressure sensors are installed. Without them, the air conditioner quickly fails and ceases to perform its functions. High-quality sensors last quite a long time, but do not forget that this is the same consumable material as filters or oil. Sooner or later, the sensors will have to be replaced.

In this article, we will briefly explain how to make a replacement with your own hands, if you have neither the time nor the desire to travel to the car service.

Sensor replacement

Why do I need an air conditioner pressure sensor in my car

To replace the air conditioner pressure sensor, it is important to take into account several nuances:

  • You will need a simple tool, a key for 14 will be enough. When removing the sensor, you do not need to drain the freon, since the system has a locking valve for the air conditioner;

  • Locate the battery and disconnect the wire from the negative terminal. Next, find the sensor itself. To do this, remove the plastic protection from the bumper. In some cases, you need to remove the entire bumper. The sensor is located on the right side;

  • The sensor is fixed with a special lock. Click on it and disconnect the wires from the sensor. Then unscrew the sensor itself. To do this, use the key for 14;

  • Remove the old sealing pad and install a new one, lubricate with oil for the air conditioner;

  • Install a new sensor. To do this, perform all the same actions, but in the opposite order: screw the sensor on the fitting, connect it to the wires with the help of a lock;

  • Replace the bumper or its plastic protection. Connect the wire to the negative terminal.

That’s all. This manual is suitable for most cars.


The high-pressure sensor of the air conditioner can be replaced with your own hands. This will take no more than 30 minutes, if you have never done such work before and do not have enough experience. In the car service for this work will take a lot of money, but any craftsman is able to replace the sensor with their own hands.

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