Jaguar XJ AC not working, dealer unable to find leak after two days on Jaguar XJ

Some Jaguar XJ owners report experiencing persistent air conditioning (AC) issues, even after dealer visits, often due to refrigerant leaks, electrical climate control problems, or compressor malfunctions. Common complaints include the AC not cooling properly, which may stem from low or overcharged refrigerant, clogged cabin air filters, dirty condenser or evaporator coils, and faulty blower motors or fuses. Owners are advised to examine critical components like the compressor, condenser, evaporator, thermal expansion valve, and drier to identify potential issues. Additionally, measuring the system's gas pressure with a pressure gauge can help diagnose problems, as standard pressure levels can be referenced in an AC guide. If the AC clutch fails to activate, checking the fuse and relay is a prudent first step, but inspecting for leaks around the evaporator and other components is also essential. If dealers struggle to locate leaks, it may be beneficial for owners to suggest specific areas for inspection based on these common issues.