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      05-23-2012, 10:59 AM   #1
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M3 E9X breaking in at 50k miles

So a BMW mechanic told me these engines truly break in around 40-50k miles. Anyone else ever hear this? Is it even remotely true..
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      05-23-2012, 11:11 AM   #2
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Total nonsense.
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      05-23-2012, 01:09 PM   #3
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you might not want to trust that BMW mechanic working on your car
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      05-23-2012, 01:10 PM   #4
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Makes no sense. It's not a pair of loafers.
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      05-23-2012, 01:22 PM   #5
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Makes no sense. It's not a pair of loafers.
Haha.. Agreed
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      05-23-2012, 01:23 PM   #6
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Quote:
Originally Posted by tmntmn
you might not want to trust that BMW mechanic working on your car
Most definitely not going back to that dealership
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      05-23-2012, 03:47 PM   #7
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I have a strong suspicion that he was joking. Like "Nah that thing will run a lot longer, it's just getting broken in!" or something.
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      05-23-2012, 06:47 PM   #8
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No he was serious cause I test drove a 12 and told him my 09 felt a lot stronger after pulling it back into service and that's when he said it


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I have a strong suspicion that he was joking. Like "Nah that thing will run a lot longer, it's just getting broken in!" or something.
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      05-24-2012, 12:39 AM   #9
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I actually somewhat agree w the guy. I have an 2008 (07 build) w/ 57k miles and it feels stronger n faster than ever! No joke.
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      05-24-2012, 07:20 AM   #10
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Quote:
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I actually somewhat agree w the guy. I have an 2008 (07 build) w/ 57k miles and it feels stronger n faster than ever! No joke.
Yeah and w/ out mods?
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      06-17-2012, 04:10 AM   #11
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this reminds me of when i owned my NSX, the magical "break in" number was 75k miles. it was actually dyno proven with the same car (tho i know dyno runs can vary due to conditions etcetc).

the Honda engine builder stated that the motor at that mileage finally is "broken in"...

i hit that number on my old NSX and yah i didn't notice anything....haha
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      06-17-2012, 04:18 AM   #12
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Did your mechanic make you feel better when he told you this?
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      06-18-2012, 07:37 PM   #13
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Haha maybee



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Did your mechanic make you feel better when he told you this?
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