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故障现象一辆上海大众帕萨特轿车(配备V6 BBG2.8 L发动机),出现空调不制冷故障。故障诊断接车后检查空调压缩机进、出管没有明显温差,检查电磁离合器未接合。正常情况下空调压缩机运转的条件有以下几点:空调控制开关接通;环境温度高于12℃;制冷剂量符合要求;低压
Symptom A Shanghai Volkswagen Passat sedan (with V6 BBG2.8 L engine), air conditioning is not cooling failure. Troubleshooting Check the car after the air-conditioning compressor inlet and outlet pipe no significant temperature difference, check the electromagnetic clutch is not engaged. Under normal circumstances, air conditioning compressor operating conditions are the following: air-conditioning control switch is turned on; ambient temperature is above 12 ℃; refrigerant quantity to meet the requirements; low pressure