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      12-15-2011, 01:13 PM   #1
E30 Racer
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1M owner's manual break-in error?

Could the 5500 RPM break-in restriction actually be a copy/paste error from the E9x M3 manual?

Exhibit 1: 5.5k isn't *that* far away from the 7k limiter on the 1M, but pretty far from the M3's 8.4k limit.

Exhibit 2: My PCD delivery rep indicated a 4.5k break-in should be respected, which is in agreement with the 335/335is manual recommendation.

Exhibit 3: Other errors are know to exist. In the 1M manual, a comment regarding engine warm-up reads: "During the warm-up phase, the high-performance V8 engine runs a little more roughly due to its emissions control system."

Just a little something for the uber-anal engine break-in guys to ponder...just think of all the damage that extra 1k worth of forbidded RPM may have caused.

Last edited by E30 Racer; 12-15-2011 at 03:00 PM.
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      12-15-2011, 02:49 PM   #2
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Yup, that extra thousand revs definitely caused irreparable damage. I'll buy your 1M off you for half price.
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      12-15-2011, 03:23 PM   #3
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I was going to post the same about the V8. How did they do that???
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      12-15-2011, 03:27 PM   #4
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For my N54, 135i I was told not to exceed 4,500 rpms (or 170 kph) durring the first 2K kms. The 1M has a pretty simular engine.
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      12-15-2011, 03:56 PM   #5
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I say rev it up and let it rev down.... my 135 has never burned oil and it was broken in hard.

Even when I followed the dealerships guidelines of 1 oil change every 12 months my car never needed oil to be added in between services.
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      12-15-2011, 04:17 PM   #6
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IMO, the manual's rev limit is just a way of saying drive at 75% of the performance limit.... there to protect the manufacturer?
I break my engines in like this over past few years... http://www.mototuneusa.com/break_in_secrets.htm

Works for me. My 135i never uses any oil and pulls really well. My 1M will be getting the same treatment, hot oil & changing oil is the key here.

What you should avoid during first 1000 mls are hard starts/launches, hard stops, dyno etc. The drive-line needs to be run in too.
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      12-16-2011, 12:40 AM   #7
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My Euro Delivery agent also advised me 4500 rpm during break in. I was able to pretty much adhere to this for the roughly 800 miles of my delivery and until I was at nearly 1100 miles.
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      12-18-2011, 06:02 PM   #8
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If it were that big of an issue, BMW would set rev limit to 5500 RPM for the first 1200 miles or the first 20 hours of run time.
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      12-18-2011, 06:14 PM   #9
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No errors - broke it in by the book and this thing pulls like a train with no consumption issues.
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