[stressdoc]

Originally Posted by swamp2

Does this also count as anecdotal evidence? Where is the comparison with the 300 engines ran this way vs. the 300 ran with a more traditional soft break in? Much of the "explanation" of this process and how/why it works makes the process superfluous in light of the fact that many (likely all) OEMs take all engines to or above redline, aggressively before the car ever leaves the line. I've posted proof of this from multiple manufacturers prior here on the forum.

The reason why engines are redlined on the factory line is not to enhance break-in, but rather to test that the engine is working properly. At least that is what I was told on a BMW factory tour.

It would be interesting if oil was changed after the testing to reduce abrasive particles. I am contemplating getting my oil changed in Munich after a few hundred kilometers of autobahn runs... Plus I don't like the idea of oil with some potential water contamination sitting in the engine for 6 weeks during transport back to USA.

It truly is hard to get the counter-intuitive logic as to why BMW would be so clear about break-in limits if that was not best for the engine.

Maybe we could get Mythbusters interested in testing this...

[Sedan_Clan]

Originally Posted by stressdoc

It truly is hard to get the counter-intuitive logic as to why BMW would be so clear about break-in limits if that was not best for the engine.

Are there any posted materials regarding break-in limits on the new car? They probably exist, but I have yet to hear about them (..and they are not posted in the car like they were the E46 and E9X).

[Sir Loin]

Originally Posted by Sedan_Clan

Are there any posted materials regarding break-in limits on the new car? They probably exist, but I have yet to hear about them (..and they are not posted in the car like they were the E46 and E9X).

here: http://f80.bimmerpost.com/forums/sho...d.php?t=965749

Break-In Period
As with any other current or late M model, break-in period is 2,000 km or 1,200 miles. During that time, maximum engine speed should not exceed 5,500 RPM, maximum speed is 170 kph (105 mph). Also, full-throttle and kickdown shall be avoided up until 1,200 miles.

Between 2,000 and 5,000 km (1,200 and 3,100 miles), engine RPM can be slowly increased but speed should not exceed 220 kph (137 mph) for a longer period of time.

[Sedan_Clan]

Originally Posted by Sir Loin

here: http://f80.bimmerpost.com/forums/sho...d.php?t=965749

Ah okay.


Mine will still see redline the first day.

[stressdoc]

Originally Posted by Sir Loin

here: http://f80.bimmerpost.com/forums/sho...d.php?t=965749

Uggh. No way I can adhere to that on ED unless traffic keeps the speed limits down.

Maybe I'll go tour in Scandinavia. Painfully slow limits there.

[Sedan_Clan]

Originally Posted by nachob

I got my first reply from BMW. It's Marcel Muhl who is in charge of M division marketing. He says he will try to get me an engineer response but that as head of M division, they break in all their car for their events all over the world and was surprised also by this mentality of ignoring the break in.


This almost reminds me of the small-town ignorant guys on some B movie: You know the, "I doesn't need to be learned to read! Don't give us your fancy European break in stuff. I think the other thing that bothers me the most, is that these same guys advertise their cars as adult-owned, freeway miles. I have never seen a used car ad that say, I broke it properly....like I stole it. I will post the BMW Engineering reply if I get it.

BBS replied to me on the wheel powdercoating and BMW corrected an error on their website when I brought it up to them at Garching. They had listed the 1M as a two-disk clutch when it was in fact a lightened dual-mass flywheel.

Seriously, I know people take pride in ignorance as some sort of anti-snobbery thing but if you are really that proud and sure of the way you abuse these cars than Man up and post it in your ads when you sell them. Let the buyer know the truth and when the motor is consuming oil or blows, don't get on here bashing BMW engine quality or clutches. When your M diff starts to make weird notices, don't come crying here about how your diff is dying. I know it can happen even when you break them in carefully, but if you abuse them be honest enough to deal with it and say so.

Wow.....emotional much?

[GBPackerfan1963]

Originally Posted by stressdoc

Uggh. No way I can adhere to that on ED unless traffic keeps the speed limits down.

Maybe I'll go tour in Scandinavia. Painfully slow limits there.

Go to Italy where 130km/h is limit. Oh wait........that's where I did 250km/h in our E60 550i. Nevermind....Carry on.

[swamp2]

Originally Posted by stressdoc

The reason why engines are redlined on the factory line is not to enhance break-in, but rather to test that the engine is working properly. At least that is what I was told on a BMW factory tour.

I mostly agree. However, the contention in the link posted to about break in is that break in occurs very rapidly. This seems like it would be accomplished by what is done at the factory. I doubt motorcycle engines are treated significantly different.

Originally Posted by stressdoc

Maybe we could get Mythbusters interested in testing this...

Ha, good one, not a bad idea. Unfortunately, like a lot of good science, one data point can easily be confounded by a plethora of other effects. It's an expensive question and a very long term one to really answer this. It's also certainly reasonable that, as pointed out in that link, as manufacturing changes (typically offering tighter tolerances and improved surface finishes) ideal break in procedures likely would change.

[stressdoc]

Originally Posted by GBPackerfan1963

Go to Italy where 130km/h is limit. Oh wait........that's where I did 250km/h in our E60 550i. Nevermind....Carry on.

I blew past three cars of carabinieri stopped on side of road near Bologna at 262 kph in my E90 and several of them jumped up and cheered!

My favorite roads are in the Italian alps.



OMG OT but unbelievable goaltending by Ochoa for Mexico!!

[nachob]

Originally Posted by Sedan_Clan

Wow.....emotional much?

Yeah, too much! No more typing during the World Cup!

I'll just try to get the facts and share!

[Sedan_Clan]

Originally Posted by nachob

Yeah, too much! No more typing during the World Cup!

I'll just try to get the facts and share!

Good! I was about to have a doctor friend prescribe some Danazol and Alprazolam. Bring you back to male basics! Damn World Cup's got you skitzin' cuzz!

[metrickid]

Originally Posted by stressdoc

Uggh. No way I can adhere to that on ED unless traffic keeps the speed limits down.

Maybe I'll go tour in Scandinavia. Painfully slow limits there.

What? We have 110-120km/h on the highway, it is not THAT slow!

[stressdoc]

Originally Posted by Rossifumi

What? We have 110-120km/h on the highway, it is not THAT slow!

A a a a g h . . .

[Shakes]

Anyone have any thoughts on how long the break in period should be? been hearing about 1200 km or so ? any thoughts ?

[TheBingoBalls]

Should say in the owners manual.

[Shakes]

Originally Posted by TheBingoBalls

Should say in the owners manual.

really? i never knew that. will check today. thanks

[TheBingoBalls]

Yeah, it would be stated within the first couple of pages.

CORRECTION: It's stated under the Driving Tips section of the manual and it is 1200 miles/2,000km.

[Shakes]

Originally Posted by TheBingoBalls

Yeah, it would be stated within the first couple of pages.

CORRECTION: It's stated under the Driving Tips section of the manual and it is 1200 miles/2,000km.

oh wow, i got a long ways to go. just got my 4 on friday and only put on 93km on it

[docedkin]

I've just finished the specs on a '15 435i, M-Sport, October ED. I'm also arranging for stateside pickup at the Performance Center. When I did an ED on my '09 335i, E92, it was shipped back to my dealer with about 2K European miles on the clock so they did the initial oil change before I took "delivery". In the case of the '15, I'll again likely put around 2K miles on in Europe and I have about 1.5K of touring planned to get home here in NY after I get the car in South Carolina. Will the PC do the 2K oil change? Do I make an appointment at some dealer in the south before I drive back to NY? Do I just wait until I get home and take the car to my local dealer with nearly 4K miles? Not sure how this will work.

'09 335i E92 Sport, ED

[Shakes]

Originally Posted by docedkin

I've just finished the specs on a '15 435i, M-Sport, October ED. I'm also arranging for stateside pickup at the Performance Center. When I did an ED on my '09 335i, E92, it was shipped back to my dealer with about 2K European miles on the clock so they did the initial oil change before I took "delivery". In the case of the '15, I'll again likely put around 2K miles on in Europe and I have about 1.5K of touring planned to get home here in NY after I get the car in South Carolina. Will the PC do the 2K oil change? Do I make an appointment at some dealer in the south before I drive back to NY? Do I just wait until I get home and take the car to my local dealer with nearly 4K miles? Not sure how this will work.

'09 335i E92 Sport, ED

hey i suggest making this a new thread so others can help. im not sure myself

[m6pwr]

Originally Posted by docedkin

I've just finished the specs on a '15 435i, M-Sport, October ED. I'm also arranging for stateside pickup at the Performance Center. When I did an ED on my '09 335i, E92, it was shipped back to my dealer with about 2K European miles on the clock so they did the initial oil change before I took "delivery". In the case of the '15, I'll again likely put around 2K miles on in Europe and I have about 1.5K of touring planned to get home here in NY after I get the car in South Carolina. Will the PC do the 2K oil change? Do I make an appointment at some dealer in the south before I drive back to NY? Do I just wait until I get home and take the car to my local dealer with nearly 4K miles? Not sure how this will work.

'09 335i E92 Sport, ED

You don't need to do a "break-in" oil change on a new BMW. The build up of wear metals, even on a new engine, will be light years away from being anywhere close to limits. Doing a break-in oil change to "wash out wear metals" is a relic of the distant past.

[m6pwr]

OP: break-in "theories" covered here -

http://f30.bimmerpost.com/forums/sho...d.php?t=919690

My suggestion: follow the basic limits prescribed by BMW in the Owner's Manual.