Intake-air temperature sensor; Idle speed controller; Test coolant temperature sensor; Transmission range sensor circuit; Check change ABS sensor; Car knock sensor troubleshooting; Check air mass sensor; Camshaft position sensor; Accelerator pedal sensor; Throttle switch; Throttle potentiometer; Injection nozzle; Checking the exhaust gas Did you ever solve this? I have a similar issue on my Astra J. Compressor clutch is not engaging. I had the AC system re-gassed and it's not leaking. Replaced pressure switch on condenser, but no change. Checked fuses and relays - all seems OK. Compressor seems free to spin, not jammed. There are two cables to the compressor. One has ~0.4V. The most common causes that hinders normal operation of air conditioning system on your Vauxhall Astra are dirty cabin air filter, refrigerant leak, dirty or clogged condenser, dirty or clogged evaporator, bad blower motor, defective compressor, faulty blend door actuator or any fault in the electrical system. 1. Dirty cabin air filter Some owners have reported issues with the air conditioning system in the Opel Astra, including problems with the compressor and refrigerant leaks. In some cases, the air conditioning system may stop working entirely, leading to uncomfortable driving conditions. One of the fairly common clues that can notify you to the fact that your air conditioning is not working is if you have a musty or damp smell inside your motor vehicle, and yes, a bad smell can be a warning of a defective air conditioning system, it can be perpetual or just present when you turn on your air conditioning. Here are the most common causes of an AC system not blowing cold in the Opel Astra: Lack of Refrigerant. Your Astra's air conditioner will not work if the refrigerant level is too low. In fact, most compressors won't even cycle on without the right amount of refrigerant pressure (this saves them from eating themselves). RsQbuYB.

opel astra air conditioning problems