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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 Wed, Aug-31-2016, 10:24:10 PM   #1
Cheetah611
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Default New m3 and rod bearings

First off, I know this has been discussed to death and I've done a ton of research myself but haven't found an exact answer to my question.
I recently purchased a 2008 E90 m3 6MT with 63k miles. I was able to get an extended warranty but it only cover up to $3,000 of repairs (they said the M falls into an 11 yr old or 140,000+ miles car category).
My question is, if I hear tapping (not hard knocking) is it too late for the bearings to be replaced? Or would I need a new engine/rebuild at that point? And would I be able to hear tapping from inside the cabin? Finally, exactly how worried should I be? I stretched my budget from a 335i after driving the M and have some spare cash for repairs but a new engine is definitely not in that budget..

Once again sorry for beating a dead horse and thanks for the help in advance.
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Old Wed, Aug-31-2016, 10:49:08 PM   #2
pbonsalb
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Default Re: New m3 and rod bearings

There is definitely a risk. You have to decide whether to hedge against it. I did the rod bearings on my 08 at 60k. They looked better than many but had some copper showing at the parting lines and down the sides, but none yet in the middle, on the upper shells. I think they would have been fine for another 20k, maybe more. I spent $500-600 in parts and DIYed. On the other hand, most of these cars seem to be doing fine. I did not want to worry and an $8k used engine would be unpleasant. I am at almost 80k now and dont worry. I might do them again at 100k if I have the time and energy, out of curiosity.
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Old Thu, Sep-01-2016, 01:53:08 PM   #3
williemandowa
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Default Re: New m3 and rod bearings

Go ahead and do the bearings believe me I just paid $8000.00 for a motor after I had a failed rod bearing the motor I bought had 60k miles and I had the mechanic change the bearings with BE bearings just as preventitive maintenance when the mechanic pulled the bearings out of the motorist just bought he said they had wear on them
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Old Fri, Sep-23-2016, 05:54:35 PM   #4
E90m3nyc
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Default Re: New m3 and rod bearings

I plan to have my changed although I have low miles. I think if you plan to keep the car it's def wise to get them done. 2K>10K motor
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Old Fri, Sep-23-2016, 08:18:35 PM   #5
pbonsalb
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Default Re: New m3 and rod bearings

One just failed with 17k miles.
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Old Mon, Oct-03-2016, 04:18:59 PM   #6
Shockerg1
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Default Re: New m3 and rod bearings

Well mine is at 126K Km and after hearing horror stories, i simply will not chance it any longer. My WPC treated OEM shells and ARP bolts just arrived... Gonna do them right away ... Mine is a 2011 e92 M3 DCT btw


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Old Sat, Oct-08-2016, 12:35:51 AM   #7
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Default Re: New m3 and rod bearings

Good man Shockerg1 better safe then sorry I wish I would have known about this I would have happily spent $2000.00 over the $10,000.00 total it cost me
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Old Sat, Oct-08-2016, 10:27:25 AM   #8
Shockerg1
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Default Re: New m3 and rod bearings

Quote:
Originally Posted by williemandowa View Post
Good man Shockerg1 better safe then sorry I wish I would have known about this I would have happily spent $2000.00 over the $10,000.00 total it cost me


Man, i feel really bad for you. Its pains to see $10K flushed down the drain


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Old Sun, Oct-09-2016, 12:06:40 PM   #9
Shockerg1
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Default Re: New m3 and rod bearings

So a quick update.... On the first 4 shells out..... I am thanking god i made the right decision.....

Pictures attached.... Caught in the nick of time

Cranks still is good... More pictures to follow shortly....


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Old Sun, Oct-09-2016, 12:20:20 PM   #10
Shockerg1
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Default Re: New m3 and rod bearings

So a quick update.... On the first 4 shells out..... I am thanking god i made the right decision.....

Pictures attached.... Caught in the nick of time

Cranks still is good... More pictures to follow shortly....


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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)