VW Air Conditioning Performance: Diagnosing Thermal Expansion Valve & Compressor Issues
Key Takeaways Warm air from the vents despite the AC running often points to a compressor or TXV problem Cycling or clutch noise under the hood can signal a compressor nearing failure Ice buildup on the low-pressure line is a classic sign the thermal expansion valve is stuck Inconsistent cooling that worsens in stop-and-go traffic…