Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Linear pressure sensor
The linear pressure sensor is installed directly on the receiver drier. The pressure sensor has an integrated measurement amplifier. This provides an output voltage which is linear to the pressure (0-35 bar). The signal is used to control the following functions:
- The engine cooling fan (FC).
- Compressor disengagement at high pressure (> 30 bar).
- Compressor disengagement if the system is completely empty (< 1.76 bar).
The pressure sensor cannot be replaced without draining the system first.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.