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The ones I just pulled out Both tensioner pulleys had some wear but the bearings on them seemed in ok shape and tensioners themselves seemed ok. The main acc belt tensioner pulley had the most wear with a lip on either side of where the belt ran that would catch your fingernail. This is after 90000 miles nearly. Probably wasn't necessary except the idler but you know, bmw
Last edited by Richbot; 01-22-2017 at 11:00 AM..
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