Can someone please tell me whether this is due to a poor-quality
remanufactured clutch, or a faulty a/c compressor:
My '87 Mercedes 300D Turbo A/C clutch went bad: it wouldn't engage but
at least didn't jam the pully which still spun freely when the clutch
was disengaged. I replaced it with a remanufactured Autozone clutch.
It worked for a month of use. That last one went bad and actually
seized the pully, breaking the serpentine belt in about 4 seconds.
The mechanic said when he was replacing the clutch the first time that
when he spun the compressor by hand there wasn't abnormal resistance.
As I say, this time when the clutch went bad it broke the serpentine
belt because it wouldn't freewheel the pully when the clutch was
disengaged. This could be because the bearings in the remanufactured
Autozone clutch were never replaced (or are terrible quality) and the
entire assembly just melted together, or perhaps the compressor went
bad and the clutch went bad together.
It is $650 parts and labor to replace the compressor w/ clutch, evac
and fill the system.
It is $150 labor to replace just the clutch, as that previous clutch
is still under warranty so there is no other parts cost with this
I don't want to spend the $150 on the 3rd clutch that is likely to
burn out because of a faulty compressor.
So do you think it is a faulty compressor, faulty clutch and a
properly functioning compressor, or faulty compressor and faulty