Hey guys,

When I bought my 300sd it lacked a belt for the AC compressor. I just put one on yesterday, but the AC system has yet to blow cold. Infact, it always blows hot as if the heater is stuck on. I have moved the dial back & forth and tried different settings and buttons but to no avail. The engine doesn't slow when I turn the system on so I believe the clutch may be bad on the compressor or their may be a problem with a switch or relay somewhere, particularly because it seems teh heat is always on. Let me know what you guys think

Cheers,
Mike

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1984 300sd auto with 246,000 miles