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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Tensioner pully replace



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      06-10-2013, 04:57 PM   #1
McAuley7
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Tensioner pully replace

Bmw said in an inspection my tensioner pully is failing quoted $400, other shop said $290
I go to autozone it's a $35 part? It doesn't look so hard once u get belt off , why is it so much? Also anyone have write up?
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      06-10-2013, 04:58 PM   #2
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Well, I bought mine from getbmwparts.com. Original part is over $100...
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      06-10-2013, 05:05 PM   #3
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The belt, idler pulley, and tensioner pulley (& tensioner bolt as mentioned below) are $112 shipped from autohaus. There is a great write up in the DIY section, but its pretty straight forward once you get to it.

Last edited by 7786; 06-10-2013 at 05:11 PM.
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      06-10-2013, 05:09 PM   #4
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Took me less than an hour to do belt, tesioner, and idiler pully on the NA

Parts for all three is around $120 as stated above....make sure you get a new bolt for the tensioner
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      06-10-2013, 05:18 PM   #5
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Ok thanks guys I didn't see a DIY must of missed it, ill check again thanks
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      06-10-2013, 05:42 PM   #6
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Quote:
Originally Posted by Sonic777 View Post
Ok thanks guys I didn't see a DIY must of missed it, ill check again thanks
http://www.e90post.com/forums/showthread.php?t=627158
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      06-10-2013, 06:41 PM   #7
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[quote=JS82]
Quote:
Originally Posted by Sonic777 View Post
Ok thanks guys I didn't see a DIY must of missed it, ill check again thanks
Thannnnnnnkkkk youuuu
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      06-10-2013, 10:04 PM   #8
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Sorry OP to go off topic slightly, but when does this become something to watch out for mileage wise. In other words at what point should these parts be inspected more frequently
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      06-10-2013, 10:06 PM   #9
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Quote:
Originally Posted by Spinz
Sorry OP to go off topic slightly, but when does this become something to watch out for mileage wise. In other words at what point should these parts be inspected more frequently
That's fine, should add I'm at 76k if anyone cares lol
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      06-11-2013, 07:29 AM   #10
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Forgive my ignorance, but what are the symptoms of a 'failed' pulley? Presumably excessive noise from the bearing..?
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      06-11-2013, 08:32 AM   #11
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Quote:
Originally Posted by Phil325i View Post
Forgive my ignorance, but what are the symptoms of a 'failed' pulley? Presumably excessive noise from the bearing..?
Here's my thread with a video of what my engine sounded like. Both my pulleys were shot.

http://www.e90post.com/forums/showthread.php?t=837694
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      06-11-2013, 10:02 AM   #12
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Woo and it was still drivable? They scared me saying if it fails you might be stuck and throw a belt into the radiator and mess that up, mine sound pretty normal mayb a little click noise nothing like your washing machine haha
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      06-11-2013, 10:07 AM   #13
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Quote:
Originally Posted by Phil325i View Post
Forgive my ignorance, but what are the symptoms of a 'failed' pulley? Presumably excessive noise from the bearing..?
In my case the pulley was shot so the belt was rubbing against the engine block and got shredded...twice...before I realized the problem was the pulley...
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      06-11-2013, 10:10 AM   #14
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I mean to be quoted $420 from a stealership only leads me to believe that its not thaaat difficult of a job
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      06-11-2013, 10:17 AM   #15
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Quote:
Originally Posted by 7786 View Post
Here's my thread with a video of what my engine sounded like. Both my pulleys were shot.

http://www.e90post.com/forums/showthread.php?t=837694
Thanks. There's no missing that noise is there?!!
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      06-23-2013, 10:01 PM   #16
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My noise is only heard between 20MPH & 50MPH. It is not heard while idling. Could it also be that but it becomes apparent at higher speed? I took the belt out and the idler has some grainy noise, idler pulley and alternator are quiet. Anyone experienced the same where it's only heard while driving ?
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