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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 Tue, Nov-15-2016, 10:22:29 AM   #21
jason912
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Default Re: New m3 and rod bearings

If your keeping the car for more than a year its got to be worth doing rod bearings now. Seems to be becoming a major problem on the S65 and S85 engines.
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Old Wed, Nov-16-2016, 05:00:45 PM   #22
Smurf91
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Default Re: New m3 and rod bearings

There really isn't any correlation between miles driven an wear is there? I've heard of engines failing with both low and high mileage, and some that have never failed. Is there a more definitive answer to when should begin to worry about the bearing wear?
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Old Wed, Nov-16-2016, 05:07:25 PM   #23
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Default Re: New m3 and rod bearings

Would be nice, but no.
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Old Wed, Nov-16-2016, 07:22:17 PM   #24
jason912
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Default Re: New m3 and rod bearings

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There really isn't any correlation between miles driven an wear is there? I've heard of engines failing with both low and high mileage, and some that have never failed. Is there a more definitive answer to when should begin to worry about the bearing wear?
No, but its still a very small % of cars that have actually failed.
However, you can have an oil sample sent off for analysis or check your oil filter housing for copper particles when changing oil as some sort of preventive measure.
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Old Wed, Nov-16-2016, 07:45:15 PM   #25
Smurf91
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Default Re: New m3 and rod bearings

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No, but its still a very small % of cars that have actually failed.
However, you can have an oil sample sent off for analysis or check your oil filter housing for copper particles when changing oil as some sort of preventive measure.

with all models? Aren't the 2010-2011 bearing made from a different material?
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Old Wed, Nov-16-2016, 08:47:19 PM   #26
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Default Re: New m3 and rod bearings

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with all models? Aren't the 2010-2011 bearing made from a different material?
Yes I believe the later LCI E92 M3s S65 engines had revised bearings. At the end of the day, if your worried and plan on keeping the car for a decent amount of time the only thing to do is replace them. I mean generally, if you compare the amount of cars produced to those that have actually failed...it will be a small percentage.

It has been interesting seeing the wear on the bearings from people who have changed them out, from low mile cars to higher mile cars having the same amount of wear etc. It is obviously also linked to driving style and how regular oil changes have occured.
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Old Thu, Nov-17-2016, 04:16:09 PM   #27
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Default Re: New m3 and rod bearings

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Originally Posted by jason912 View Post
Yes I believe the later LCI E92 M3s S65 engines had revised bearings. At the end of the day, if your worried and plan on keeping the car for a decent amount of time the only thing to do is replace them. I mean generally, if you compare the amount of cars produced to those that have actually failed...it will be a small percentage.

It has been interesting seeing the wear on the bearings from people who have changed them out, from low mile cars to higher mile cars having the same amount of wear etc. It is obviously also linked to driving style and how regular oil changes have occured.
So if you have a 2010+ are the rod bearings ok or do you have to plan on replacing them regardless of year? Also will the aftermarket rod bearings last the life of the motor, or is this a constant maintenance item?

I am starting to consider a V8 M3 after loving my E46. At least I should not have to worry about the rear subframe or vanos issues.
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Old Thu, Nov-17-2016, 05:12:03 PM   #28
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Default Re: New m3 and rod bearings

No. Later cars with non lead bearings fail as well. So far a small % have failed but the majority of removed bearings look bad. Let it go too far and you are looking at a $10k engine rebuild.
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Old Tue, Nov-22-2016, 11:06:46 PM   #29
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Default Re: New m3 and rod bearings

is the Blackstone analysis the only way to determine if your bearings are are going bad or not? If I was looking at car to purchase what are the signs that I would have to look out for?

Last edited by nickt5174; Tue, Nov-22-2016 at 11:10:39 PM.
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Old Wed, Nov-23-2016, 12:03:07 AM   #30
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Default Re: New m3 and rod bearings

Toyota Camry might be a better car for some of you.
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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)