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      06-02-2015, 01:40 PM   #1
daonlyillwiz
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e92 bearing questions

Hey all, I am picking up a 2012 E92 M3 on thursday and after doing some reading i'm starting to notice that these V8 engines suffer from premature rod bearing wear. Now is this limited to earlier model V8's or does it apply to ALL V8's ?

I just want to know if i should be worried if my CPO 2012 E92 falls under this category.
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      06-02-2015, 01:56 PM   #2
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all.
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      06-02-2015, 02:33 PM   #3
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You don't have to worry about this since you're buying a CPO vehicle. Enjoy the car!
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      06-02-2015, 06:49 PM   #4
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Thanks for the quick responses...Javarithms hopefully it never happens but if it does then hopefully it happens before 2018 when my warranty is up lol
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      06-02-2015, 08:25 PM   #5
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      06-03-2015, 09:26 AM   #6
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Quote:
Originally Posted by bigjae1976 View Post
Depends
on what? oil change intervals? oil type? driving habits?
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      06-03-2015, 09:34 AM   #7
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Such a loaded topic.
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      06-03-2015, 11:01 AM   #8
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Worry when your cpo is about to expire. Should be more data on the subject then. I changed mine when my cpo expired, last year. To me it was worth the peace of mind. Mine were not as bad as many that have been posted but the wear was not even among all the top bearings and some had copper showing at the side edges and end edges.
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      06-03-2015, 02:49 PM   #9
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Yea, alright ill keep that in mind...I've done tons of reading so far on this issue, sucks i guess its a minor drawback considering what we have.
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      06-03-2015, 03:20 PM   #10
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Quote:
Originally Posted by daonlyillwiz View Post
on what? oil change intervals? oil type? driving habits?
It really depends on how often you visit this board.
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      06-03-2015, 04:00 PM   #11
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Quote:
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It really depends on how often you visit this board.
lies!!!
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      06-03-2015, 09:22 PM   #12
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Quote:
Originally Posted by thekurgan
Quote:
Originally Posted by daonlyillwiz View Post
on what? oil change intervals? oil type? driving habits?
It really depends on how often you visit this board.
Truth
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      06-03-2015, 11:23 PM   #13
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If your motor blows due to bearings and BMW analyzes your black box and determines that your car has been modified or abused/tracked they may deny. I know of one personally.
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      06-04-2015, 02:53 AM   #14
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I'm not worrying because I have CPO for another 2 years. However, I'm going to change them out for prevention when it's about to expire. Read through the big thread that's in here and decide for yourself how important it is, but I wouldn't do anything until warranty is up.
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      06-04-2015, 05:49 PM   #15
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Quote:
Originally Posted by Longboarder View Post
If your motor blows due to bearings and BMW analyzes your black box and determines that your car has been modified or abused/tracked they may deny. I know of one personally.
Why was it denied? You give several possible reasons above. Which one did BMW specifically state was cause for denial of their warranty?

My guess is either software/engine mods or a timed track event (considered 'racing'). They can't (legally) deny your claim for failed bearings if you put different wheels/tires on for instance (unless we're talking wheel bearings, that is). A tune or supercharger? Sure.
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      06-04-2015, 06:03 PM   #16
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Quote:
Originally Posted by javarithms View Post
You don't have to worry about this since you're buying a CPO vehicle. Enjoy the car!
+2 my warranty is till 125k miles and 6 more years. I love it when things break on this car!!!!!
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      06-04-2015, 06:25 PM   #17
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Quote:
Originally Posted by admranger View Post
Why was it denied? You give several possible reasons above. Which one did BMW specifically state was cause for denial of their warranty?

My guess is either software/engine mods or a timed track event (considered 'racing'). They can't (legally) deny your claim for failed bearings if you put different wheels/tires on for instance (unless we're talking wheel bearings, that is). A tune or supercharger? Sure.
From what I recall "Abuse", was the official reason from BMW USA, according to the owner, who is also a member here.

The member tracked his car maybe 25-30 times. No engine mods other than catless exhaust and tune.
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      06-04-2015, 06:49 PM   #18
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Quote:
Originally Posted by Longboarder View Post
From what I recall "Abuse", was the official reason from BMW USA, according to the owner, who is also a member here.

The member tracked his car maybe 25-30 times. No engine mods other than catless exhaust and tune.
If he didn't have a tune, I'd have lawyered up fast.

Since BMW supports BMW CCA driving schools (e.g., track event), I can't see how they can deny a claim for doing track events (untimed). I've seen cars 'abused' on the street daily -- people take off from the neighborhood with cold engines/oil like it's the start of a gran prix! That's abuse!
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      06-04-2015, 07:57 PM   #19
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Quote:
Originally Posted by admranger View Post
If he didn't have a tune, I'd have lawyered up fast.

Since BMW supports BMW CCA driving schools (e.g., track event), I can't see how they can deny a claim for doing track events (untimed). I've seen cars 'abused' on the street daily -- people take off from the neighborhood with cold engines/oil like it's the start of a gran prix! That's abuse!
I would guess that it was a tune that increased the redline???

How else would BMW be able to tell that the car was tracked/abused? If you stay stock and have a DCT...you should always be under 8400RPM. Unless launch control was used.

I know my "30,000 mile" service came up at 28,000. Maybe that would be clue???
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      06-05-2015, 04:00 AM   #20
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Having the cats removed would probably be enough to void the warranty.
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      06-05-2015, 09:29 AM   #21
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I plan on leaving it alone until warranty is up...worst case i might just swap the exhaust but not any time soon
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