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      08-31-2020, 12:47 PM   #1
vod74
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M135i engine break-in period

Hi all, i should be taking delivery of my M135i hopefully sometime in September.

Just curious about any owners and your engine break-in period? I will also ask BMW about this when I receive the car and share what they have to say about it.

Thank you.
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      09-01-2020, 08:34 AM   #2
knali8
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Quote:
Originally Posted by vod74 View Post
Hi all, i should be taking delivery of my M135i hopefully sometime in September.

Just curious about any owners and your engine break-in period? I will also ask BMW about this when I receive the car and share what they have to say about it.

Thank you.
Breakin period is usually 2000kms and no reving past 4500rpm I think.

I took it easy for the first 500kms and slowly added more load gradually.

I tried to break the car in by doing regular drives up the hills, varying speeds and gears on acceleration and deceleration.

Something to note is that the car in sport mode holds the gears pretty long so you might need to manually change them so that you're not reving all the way to 6500rpm
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      09-01-2020, 09:48 AM   #3
MrFoxy
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Quote:
Originally Posted by vod74 View Post
Hi all, i should be taking delivery of my M135i hopefully sometime in September.

Just curious about any owners and your engine break-in period? I will also ask BMW about this when I receive the car and share what they have to say about it.

Thank you.
I gave mine 500 miles mate and started wringing it's neck, there is no official run-in period. Only on M2 and above do you get proper engine run-in, think it's 1000 miles then it's an oil change and Rev limiter de-restriction.
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      09-01-2020, 11:37 AM   #4
vod74
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thanks both!! very useful. i will definitely take it easy with the revs. i will also check with BMW on this and report back.
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      09-02-2020, 10:41 AM   #5
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Quote:
Originally Posted by MrFoxy View Post
Quote:
Originally Posted by vod74 View Post
Hi all, i should be taking delivery of my M135i hopefully sometime in September.

Just curious about any owners and your engine break-in period? I will also ask BMW about this when I receive the car and share what they have to say about it.

Thank you.
I gave mine 500 miles mate and started wringing it's neck, there is no official run-in period. Only on M2 and above do you get proper engine run-in, think it's 1000 miles then it's an oil change and Rev limiter de-restriction.
1200 miles then rear diff fluid is changed also with engine oil/filter. Front diff also if you have a m5/8/x5m/6
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