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Timming Chain Noise on my 545i

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Old 02-04-2011, 07:01 AM
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Originally Posted by Masterspy
All BMW have timing chain.
All recent BMW's have timing chains. Some older models have belts.
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Old 02-04-2011, 07:38 AM
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Originally Posted by jm545i
All recent BMW's have timing chains. Some older models have belts.
The older model would be the e30 325e! I think that this was the only model with the timing belt.
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Old 02-04-2011, 07:41 AM
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Originally Posted by lpvaldez
Hey guys i did a search and was not able to find anything regarding my problem.

I have a 2004 545i with close to 100k miles , recethly I noticed a small rattling noise coming from the area of the timming chain. My first guess was a timming chain tensioner. The noise is not too loud sounds like a little metal rattling. I notice it gets louder once the car is in gear once I put it back on neutral its not that loud. I dont have any power loss or feel the car weird except for that noise.


Any guidance will be nice

Thanks
It could also be the AC idler pulley. Try turning on the AC to see if the noise stops.
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Old 02-04-2011, 08:08 AM
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I have used Stett Performance there in Plano. He helped trouble shoot some issues I was having with my engine mods. I though he was fairly reasonable and he seems to know what he is doing.
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Old 02-04-2011, 08:08 AM
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Originally Posted by lpvaldez
Hey guys i did a search and was not able to find anything regarding my problem.

I have a 2004 545i with close to 100k miles , recethly I noticed a small rattling noise coming from the area of the timming chain. My first guess was a timming chain tensioner. The noise is not too loud sounds like a little metal rattling. I notice it gets louder once the car is in gear once I put it back on neutral its not that loud. I dont have any power loss or feel the car weird except for that noise.


Any guidance will be nice

Thanks
It could also be the AC idler pulley. Try turning on the AC to see if the noise stops.
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Old 02-04-2011, 08:13 AM
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Originally Posted by lpvaldez
Hey guys i did a search and was not able to find anything regarding my problem.

I have a 2004 545i with close to 100k miles , recethly I noticed a small rattling noise coming from the area of the timming chain. My first guess was a timming chain tensioner. The noise is not too loud sounds like a little metal rattling. I notice it gets louder once the car is in gear once I put it back on neutral its not that loud. I dont have any power loss or feel the car weird except for that noise.


Any guidance will be nice

Thanks
I had the exact same symtoms you are experiencing last year. My rattling got louder as I put it in gear then followed by a fairly high screeching sound. No difference in performance nor heating/cooling issues too. So I bought a very cheap mechanics stethoscope and discovered my symptoms to be a failed waterpump (bearings went bad). Removal and replacement was fairly easy and straightforward - I'd rate repair as 2.5/3 wrenches out of 5. If its any consolation my 545 had only 60k when this happened Good luck
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Old 02-04-2011, 10:18 AM
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you could take your belt off and run the engine for a short bit to see if the noise goes away. if the sound goes away, then its one of your accessoris...water pump, alternator, ac, idler pulley, etc.
but dont run the engine longer than a 20-30 seconds, because the water pump is not flowing coolant throught the engine.
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Old 02-04-2011, 04:06 PM
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Originally Posted by Whino
I have used Stett Performance there in Plano. He helped trouble shoot some issues I was having with my engine mods. I though he was fairly reasonable and he seems to know what he is doing.
Thanks i will def look him up to take my car this week
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Old 02-04-2011, 04:08 PM
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Originally Posted by e6t.lab.rat
I had the exact same symtoms you are experiencing last year. My rattling got louder as I put it in gear then followed by a fairly high screeching sound. No difference in performance nor heating/cooling issues too. So I bought a very cheap mechanics stethoscope and discovered my symptoms to be a failed waterpump (bearings went bad). Removal and replacement was fairly easy and straightforward - I'd rate repair as 2.5/3 wrenches out of 5. If its any consolation my 545 had only 60k when this happened Good luck

Perfect i will get one monday after all the snow we are getting here to check it out and hopefully get the reairs donde soon.

Thanks
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Old 02-04-2011, 04:27 PM
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Originally Posted by mels545
It could also be the AC idler pulley. Try turning on the AC to see if the noise stops.
is it possible to just change AC idler pulley without AC compressor? because mine does that sound when my AC is off
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