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X3 F25 (2011 - current)
The latest X3 brings some added style and some new features to the BMW SUV family. Talk about the new F25 now!

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  #1  
Old 08-27-2011, 06:33 PM
michael T michael T is offline
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Breaking - in a BMW

hello everyone,

i will be soon taking delivery of a 2011 35i X3. What is the best way to break-in the engine.

Thanks.
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  #2  
Old 08-27-2011, 06:49 PM
No12 No12 is offline
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Quote:
Originally Posted by michael T View Post
hello everyone,

i will be soon taking delivery of a 2011 35i X3. What is the best way to break-in the engine.

Thanks.
Everything you will need to know will be in the Owner's Manual. Read it.

Basically, avoid severe starts/stops first 2000kms, vary your engine speeds, and don't exceed 4500 rpms. Don't use the cruise control. Basically, common sense, most of it.
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  #3  
Old 08-27-2011, 09:31 PM
Horsedoc67 Horsedoc67 is offline
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The best way to break in the car is to drive the first 1200 mi in mountainous terrain and not exceed 4000 RPM. Mountain driving constantly varies the load on the engine assisting the break-in process. It is also a good idea to let the engine idle for a few minutes prior to shutdown to let the turbo unwind and cool down. If the engine is shut down abruptly after driving the turbocharger bearings can become starved for lubrication and shorten its life. I also like to change the oil and oil filter at 1200-2500 mi. to cleanses the crankcase of the inevitable metal filings that are produced during break-in. (I just changed mine at 1500 mi. and found some metal filings in the oil and filter>)
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  #4  
Old 08-28-2011, 12:11 AM
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dandanio dandanio is offline
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Drive it like you stole it. J/k.

Keep it under 4.5k RPMs, but DO NOT change the oil sooner than 10k MILES. The initial oil in your engine is a special type of oil that allows the engine to break in properly.

As for the turbocharger, the turbo is being fed oil by an electric pump so even if you shut down your engine after a spirited driving it still will cool the turbo, the idea of allowing the turbo to cool down is straight from the previous era of turbo technology.
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  #5  
Old 08-28-2011, 09:16 AM
michael T michael T is offline
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Hey, thanks for the info. I like your idea of driving it in a mountainous area.
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  #6  
Old 08-29-2011, 02:59 PM
No12 No12 is offline
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Quote:
Originally Posted by dandanio View Post
Drive it like you stole it. J/k.

Keep it under 4.5k RPMs, but DO NOT change the oil sooner than 10k MILES. The initial oil in your engine is a special type of oil that allows the engine to break in properly.

As for the turbocharger, the turbo is being fed oil by an electric pump so even if you shut down your engine after a spirited driving it still will cool the turbo, the idea of allowing the turbo to cool down is straight from the previous era of turbo technology.
I agree with your comments re the turbo (no need to let the engine idle after spirited driving).

I don't think you are correct regarding the engine oil. Certainly motorcycles, and "M" engines require an oil change at about 2000kms or 1200 miles, but the N55 engine does not require that. Notwithstanding, many of us, myself included, change out the initial oil long before the year or kms are up. Additionally, I don't think the initial oil is a "special type of oil". It is the same oil used in the engine as specified by BMW. The "special break-in oil" has achieved some measure of urban legand.
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Gone: 2012 135i Coupe,LeMans Blue, MSport, DCT, Prem
Gone: 2011 X35i, Vermillion Red, MSport.
Gone: 2007 328xiTouring, Barbera Red, Lemon, 6MT.
Gone: 2009 M3 Sedan, Alpine White, Black Novillo, M-DCT.
Gone: 2008 535xi, Alpine White, Black Dakota, MSport.
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  #7  
Old 09-01-2011, 02:45 PM
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johnbmw6 johnbmw6 is offline
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Quote:
Originally Posted by dandanio View Post
Drive it like you stole it. J/k.

Keep it under 4.5k RPMs, but DO NOT change the oil sooner than 10k MILES. The initial oil in your engine is a special type of oil that allows the engine to break in properly.

As for the turbocharger, the turbo is being fed oil by an electric pump so even if you shut down your engine after a spirited driving it still will cool the turbo, the idea of allowing the turbo to cool down is straight from the previous era of turbo technology.
Have to agree on all counts.
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  #8  
Old 09-01-2011, 03:19 PM
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djfitter djfitter is offline
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Originally Posted by No12 View Post
I agree with your comments re the turbo (no need to let the engine idle after spirited driving).

I don't think you are correct regarding the engine oil. Certainly motorcycles, and "M" engines require an oil change at about 2000kms or 1200 miles, but the N55 engine does not require that. Notwithstanding, many of us, myself included, change out the initial oil long before the year or kms are up. Additionally, I don't think the initial oil is a "special type of oil". It is the same oil used in the engine as specified by BMW. The "special break-in oil" has achieved some measure of urban legand.
+1

dj
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  #9  
Old 09-03-2011, 08:12 PM
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Palantirion Palantirion is offline
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Quote:
Originally Posted by No12 View Post
Everything you will need to know will be in the Owner's Manual. Read it.

Basically, avoid severe starts/stops first 2000kms, vary your engine speeds, and don't exceed 4500 rpms. Don't use the cruise control. Basically, common sense, most of it.
-Hmmm, I was told at delivery that there was no prescribed break-in period for the X3 - in contrast to my past new BMWs (which were all Ms). No 1200 mile service, RPM limits, etc.
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  #10  
Old 09-03-2011, 08:18 PM
No12 No12 is offline
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Quote:
Originally Posted by Palantirion View Post
-Hmmm, I was told at delivery that there was no prescribed break-in period for the X3 - in contrast to my past new BMWs (which were all Ms). No 1200 mile service, RPM limits, etc.
There is no 1200 mile service, the rest is just common sense, and it is in the Manual. But lots of folks rev the hell out of them right away with no real consequences (I am told). Do what feels reasonable to you.
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Gone: 2012 135i Coupe, Jet Black, MSport, 6MT
Gone: 2012 135i Coupe,LeMans Blue, MSport, DCT, Prem
Gone: 2011 X35i, Vermillion Red, MSport.
Gone: 2007 328xiTouring, Barbera Red, Lemon, 6MT.
Gone: 2009 M3 Sedan, Alpine White, Black Novillo, M-DCT.
Gone: 2008 535xi, Alpine White, Black Dakota, MSport.
Long Gone: 11 other BMWs between 1971 and 1986.
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  #11  
Old 09-04-2011, 03:56 AM
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Evlengr Evlengr is offline
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Quote:
Originally Posted by dandanio View Post
Drive it like you stole it. J/k.

Keep it under 4.5k RPMs, but DO NOT change the oil sooner than 10k MILES. The initial oil in your engine is a special type of oil that allows the engine to break in properly.
This is absolutely wrong. I asked the head mechanic at my dealership the other day about this. He said the only vehicles that they still do that with is the M class. All others use their standard synthetics. He stated they stopped doing that a long time ago.

Don't mean to sound harsh, but off the record he recommends an oil change after 1500 to remove filings and other micro particles from engine break in.
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