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General E46 Forum
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Old 08-02-2013, 02:33 PM   #1
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Join Date: Jul 2013
Location: Florida & Wisconsin
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My Ride: 2003 330CI Convert
AC Tensioner Pulley

I have an automatic 2003 330CI convertible with 69,000 miles. Next week I am going to do a complete coolant system overhaul. Ordered all the parts from AutohausAZ. Received the majority of them yesterday? Waiting for a few that will arrive next week Monday. I am changing the AC belt while in there and ordered an AC tensioner pulley that I thought should be replaced. Autohaus shows the part number is 11281748131 accessory belt tensioner pulley roller; alternator and/or AC belt. Is it an easy job to replace the AC tensioner pulley? How is it attached to the AC tensioner? I had the car changed from a mechanical to hydraulic tensioner in April, which included new idler & tensioner pulleys and serpentine belt. Nothing was done to the AC tensioner, pulley or belt.
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Old 08-02-2013, 02:34 PM   #2
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Join Date: Mar 2006
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See my professional thread I made for people just like yourself! All the info you'll ever need is in there:
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Old 08-02-2013, 03:27 PM   #3
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Join Date: Jul 2013
Location: Florida & Wisconsin
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My Ride: 2003 330CI Convert
Thanks Mango. Looks like I ordered the wrong pulley. I will need to get the Dayco 89133. Based on what I had replaced in April (conversion from mechanical to hydraulic drive tensioner, deflector and idler pulley), would it pay to keep the SKF AC pulley I ordered from Autohoaus? The description says it can be used for either the alternator or AC on a hydraulic drive belt system.
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