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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Belt idler pulley - fell off...



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      02-05-2013, 04:49 PM   #1
Giff
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Belt idler pulley - fell off...

My 320d has not long turned 50k, started the car and heard a plop, openned the bonnet to see the idler pulley on the undertray and the belt flapping around.
Stupid design, the bolt that holds the alternator on has a threaded hex head that the pulley bolts on to, went to BM and picked up the superceeded part number pictured below. Only took 10mins to replace if you have a T60 torx bit to back off the tensioner.

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      02-06-2013, 08:54 AM   #2
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Was the idler noisy?

Mines (I'm assuming it's the idler) is doing a noticeable repeating "whish whish whish" noise on idle at the moment.
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      02-06-2013, 12:42 PM   #3
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^ maybe the noise is inside your head whish whish wishing you had a 335d.
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      02-12-2013, 09:15 AM   #4
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Every time I look at the OBC and see 45.6mpg, I smile and put the boot down ... ;-)
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      02-12-2013, 12:34 PM   #5
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Damn you.
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      02-13-2013, 08:40 AM   #6
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They may, but I'm still smiling
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