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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Wed, Jun-08-2011, 04:10:29 PM   #11
roarf
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Default Re: Squeaking from the belt/pulley area during cold start

I am having this exact same issue right now, except mine seems like it comes more from the pass. side (it's hard to tell, I could be wrong). Aside from buying these pullies...

Quote:
Originally Posted by fdub View Post
Belt tensioner pulley: 11281748131
Idler (deflection) pulley: 11287841228
...do I need any of the other parts of the tensioner assembly?



I also plan on replacing both belts.
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Old Wed, Jun-08-2011, 06:36:24 PM   #12
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Default Re: Squeaking from the belt/pulley area during cold start

As seen in the post above, there is more than one idler pulley for these cars. There is also another one on the A/C belt.

Other things: alternator bearings, water pump (not likely), smog pump, vacuum leak...etc...
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Old Wed, Jun-08-2011, 07:25:59 PM   #13
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Default Re: Squeaking from the belt/pulley area during cold start

replace the tensioner shock while youre at it...
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Discussing Squeaking from the belt/pulley area during cold start in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)