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E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm}


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Old Fri, Mar-03-2017, 06:07:26 PM   #61
4130
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Default Re: New m3 and rod bearings

It depends on the severity of the failure. In a catastrophic failure your engine will seize, a rod may get thrown, block may get damaged, lots of oil may dump. If not catastrophic, it will sound terrible and have chewed itself up inside to the extent that it will likely eventually throw a rod. In either case, if it has come this far it could probably mean your engine is beyond repair. The hope is to catch the worn bearings before they reach this point.
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Old Sat, Mar-04-2017, 03:35:33 AM   #62
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Default Re: New m3 and rod bearings

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Originally Posted by 4130 View Post
It depends on the severity of the failure. In a catastrophic failure your engine will seize, a rod may get thrown, block may get damaged, lots of oil may dump. If not catastrophic, it will sound terrible and have chewed itself up inside to the extent that it will likely eventually throw a rod. In either case, if it has come this far it could probably mean your engine is beyond repair. The hope is to catch the worn bearings before they reach this point.
How much does it cost you (ballpark number) to get it checked if you don't do it yourself?
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Old Sat, Mar-04-2017, 10:35:35 AM   #63
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Default Re: New m3 and rod bearings

There is no way to check other than inspection and the labor is the same as to replace the bearings. Since labor is most of the cost of a rod bearing change, you might as well just change the bearings. The cost for that is typically in the $2-3k range for parts and labor depending on the bearings and bolts used.
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Old Sat, Apr-01-2017, 06:59:54 PM   #64
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Default Re: New m3 and rod bearings

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One just failed with 17k miles.
I also know someone that has 191K, and beats on his car like no other on original rod bearings... If you don't believe I'll personally DM you videos of his car and videos of him racing.
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Old Sat, Apr-01-2017, 07:09:31 PM   #65
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Default Re: New m3 and rod bearings

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Originally Posted by #1P4PKing View Post
How much does it cost you (ballpark number) to get it checked if you don't do it yourself?
Well, the labor to "check" the rod bearings is the same as the labor to put in new ones. You're gonna pay for bolts regardless as the stock ones are one use only. Might as well spring for new BE Bearings (or someone else's) rod bearings.

You're looking at $2k-$3k depending on what bearings you choose and where you get it done.
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Old Sat, Apr-01-2017, 09:10:56 PM   #66
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Default Re: New m3 and rod bearings

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I also know someone that has 191K, and beats on his car like no other on original rod bearings... If you don't believe I'll personally DM you videos of his car and videos of him racing.
There is one car with over 250k on original bearings. If that persuades you that your car will be fine to 250k, there is no sense discussing the point. It's a decision for each owner. Certainly the vast majority of cars appear to be doing fine on their original bearings so the odds are with you if you don't change them. I am not a betting person so I changed mine when my extended warranty ran out and mine showed excessive wear in areas though they were not about to fail like some we have seen pictures of on m3post
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Old Tue, May-09-2017, 11:51:03 PM   #67
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Default Re: New m3 and rod bearings

Guys,
Sorry for posting my query here (Please guide me if there is a thread related to this).

I just purchased a used 2008 E92 M3. The car has done around 115000 miles and i'm not sure the previous owner has done a rod bearing change or not.

Please recommend me an independent workshop who can do the rod bearing change and also the estimated cost?
My location : Edison NJ

Thanks
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Old Wed, May-10-2017, 12:40:54 AM   #68
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Default Re: New m3 and rod bearings

Cost ranges from $1400 to $2500 depending on parts used and what the shop charges for the labor. The parts range from $500 to $1000 depending on what you use. Labor is about 8 hours. ACM is in your area I think and has done some. There is a DIYer not too far away who has done some and helped others who might do it for less. SYT_Shadow is his name on m3post. Can't remember if he is a member here. I did mine 3 years ago.
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Old Wed, May-10-2017, 04:23:24 PM   #69
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Default Re: New m3 and rod bearings

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Originally Posted by pbonsalb View Post
Cost ranges from $1400 to $2500 depending on parts used and what the shop charges for the labor. The parts range from $500 to $1000 depending on what you use. Labor is about 8 hours. ACM is in your area I think and has done some. There is a DIYer not too far away who has done some and helped others who might do it for less. SYT_Shadow is his name on m3post. Can't remember if he is a member here. I did mine 3 years ago.
Thank you!
I just received a quote from ACM and I've PMed SYT_Shadow as well.
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Discussing New m3 and rod bearings in the E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) Forum - {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm} at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)