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Old 05-07-2000, 07:39 PM
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Just replaced the condensor, dryer, a/c dryer switch, and a/c dryer pressure switch. Refilled with freon 134. No leaks. Sometimes the car gets real cold other times only slightly cooler air comes out. Sometimes stopping the car and restarting makes it cold again. Any clues of what is wrong?

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Old 05-07-2000, 07:41 PM
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Join Date: Jan 2000
Location: New Bedford, MA USA
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Possiblilties-> A/C control relay. Intermittent low pressure cutout switch, compressor clutch.

Jeff L
1987 300e
1989 300e
1987 BMW 325
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Old 05-07-2000, 08:33 PM
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
To diagnose the problem one will have to find whether the problem is a compressor control problem, a refrigeration efficieny problem, or an air mixing or heater problem.

Next time the cooling is poor verify whether the comp is turning. Verify that the heater valve is powered closed. After that the system should have its pressures evaluated.

Steve Brotherton
Owner 24 bay BSC
Bosch Master, ASE master L1
26 years MB technician

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