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Old 06-25-2009, 10:10 PM
rgnprof rgnprof is offline
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Join Date: Feb 2003
Location: Oklahoma
Posts: 1,073
Is 13mm too wide for the A/C belt???

Haven't been around here much lately - my time has been spent on other Mercedes purchases. Up to 4 now - and my wife is still talking to me!

Anyway, I have had repeated problems with the AC belt on my '78 300D. Today, it frayed around the edges and it came off. I put a new one on and it just looks too wide to me - it is a Conti belt, 13mm wide, and it seems to set up too high in the pulley groove. It is really hard to get it tight, I think I did but I'm not sure it's not going to start slipping again. When it starts to slip, the compressor starts screeching something awful, primarily while idling.

I thought I read somewhere that the AC belt was 12.5?? I can't find one anywhere...

ryan
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RG Newell

1984 300D
1972 250
1986 560SL
1991 300CE
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