Thread: stunned that the AC works in my 72 220D!
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  #11  
Old 08-19-2018, 06:11 PM
Sugar Bear Sugar Bear is offline
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Join Date: Sep 2001
Posts: 3,423
IIRC not self tensioning. The bolts are loosened slightly on the idler pulley and it pivots on one of them adjusting the tension.

Good luck!!!
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