Myths about the 1200 mile break in???

[Mthrice]

Originally Posted by mkoesel

He didn't mean you aren't able to go to 8400 RPM at 1201 miles, he meant that you aren't supposed to.

Why would they enable it, if its bad for the car? Their the ones that have to pay for the fix if something breaks.

[mkoesel]

Originally Posted by Mthrice

Why would they enable it, if its bad for the car? Their the ones that have to pay for the fix if something breaks.

I don't know why they do it like that, but it is the case nevertheless. Well, actually, I don't think that 1200 mile to 3000 mile procedure says not to use LC, it just says not to use high RPMs too much (or something like that - Id have to search to get the exact wording).

[12'M3Freak]

Originally Posted by Mthrice

Apparently it does. Cause launch control takes u all the way to redline!

You should tell the BMW engineers they wrote the book wrong then.

[gblansten]

Originally Posted by username11

Lunch control is only available after 1200 miles. Before that, you're on your own.

I know. I kept getting the sandwich detected light in my car until the odometer turned 1200.

[12'M3Freak]

Originally Posted by mkoesel

No prob.

The computer is still responsible for enabling it; however, it only knows the 1200 mile service has been performed because the tech clears the service indicator. So it does require human intervention, yes.

That makes since if it needs a human to clear it. That it would be done at 1200 mile insp. Since at 3000 miles you don't take it in.

One problem solved. Thanks.

[12'M3Freak]

Originally Posted by mkoesel

He didn't mean you aren't able to go to 8400 RPM at 1201 miles, he meant that you aren't supposed to.

Yup!

[12'M3Freak]

Originally Posted by MysticBlue

You should have your 1200 mile service done before you use launch control, but there is nothing stopping you from doing it if you are over 1250.
The software does not permit you to do launch control before ~1250 miles.
It does permit you to do launch control after ~1250 miles, whether you get the service done or not. There is nothing the dealer has to do to your software during service to allow launch control. No permissives are switched on. It just happens at 1250 whether service is done or not.

Also, as has been discussed a thousand times over the past 4 years, there is no software changes or permissives that increase horsepower or performance in any way shape or form.

Is there proof though. Do you have a BMW doc or something? I am not looking for word of mouth.

It is like the idiot sales guy saying "oh ya your key fob is rechargeable in the slot". Yet the book says when you get the batt light on the dash change the battery. If you also look at the battery it is not rechargeable. So, why do dumbasses keep saying it is? It may have been on older models but not the newer ones.

[tibra1]

Do you really need proof or a document from BMW to tell you not to launch it before the 1200 mi break-in?...really? :

Goes directly to my point of using common sense

[12'M3Freak]

Originally Posted by tibra1

Do you really need proof or a document from BMW to tell you not to launch it before the 1200 mi break-in?...really? :

Goes directly to my point of using common sense

Common sense would tell you to RTFQ! If you see a few posts ago I think we figured out the launch control part using common sense.

[MysticBlue]

Originally Posted by 12'M3Freak

Is there proof though. Do you have a BMW doc or something? I am not looking for word of mouth.

It is like the idiot sales guy saying "oh ya your key fob is rechargeable in the slot". Yet the book says when you get the batt light on the dash change the battery. If you also look at the battery it is not rechargeable. So, why do dumbasses keep saying it is? It may have been on older models but not the newer ones.

No, I don't have any docs, just first hand experience, other's experience, discussions with different SA's, (not CA's. Nothing a sales guy has to say is worth anything) and many threads on the subject on this and other forums over the years. There were some BMW techs with first hand knowledge involved in some of those old threads. I know what you mean as far as taking the word of an SA, believe me, all you can do is take in all the information you can, taking it all with a grain of salt, and use your best judgement to weed out the false from the facts. I'm not gonna go searching for 3 year old threads. All I can say is trust me. What I've presented is fact as far as I know. Take it or leave it.

[12'M3Freak]

Originally Posted by MysticBlue

No, I don't have any docs, just first hand experience, other's experience, discussions with different SA's, (not CA's. Nothing a sales guys has to say is worth anything) and many threads on the subject on this and other forums over the years. There were some BMW techs with first hand knowledge involved in some of those old threads. I know what you mean as far as taking the word of an SA, believe me, all you can do is take in all the information you can, taking it all with a grain of salt, and use your best judgement to weed out the false from the facts. I'm not gonna go searching for 3 year old threads. All I can say is trust me. What I've presented is fact as far as I know. Take it or leave it.

That is a respectable answer. Thanks.

To bad there is not more BMW techs on here though. I am sure they have to sign some sort of paper limiting what they can and can not say to the public.

[tibra1]

Originally Posted by 12'M3Freak

Common sense would tell you to RTFQ! If you see a few posts ago I think we figured out the launch control part using common sense.

So then why are you asking for proof from BMW? ..OP Fails

[highyo]

Having driven these cards very hard at two day m school, it would take a lot to really really mess them up. Simple rule, don't go crazy, break it in slowly, and the let her rip. at what mileage? I don't know. 3200? Whatever.

[tibra1]

Originally Posted by highyo

Having driven these cards very hard at two day m school, it would take a lot to really really mess them up. Simple rule, don't go crazy, break it in slowly, and the let her rip. at what mileage? I don't know. 3200? Whatever.

Beg to differ ..launching these cars repeatdly has proven to cause issues with the mounting points of the diff to the rear subframe

http://www.m3post.com/forums/showthread.php?t=441119

My SA had leased an M3 as well and had to replace his LSD and subframe at 5K miles under factory warranty (to be fair he told me he launched the crap outta of it and let him sons do the same)

Obviously BMW's use of rubber mounts is not optimum design for launching..

Diff Mounts

[US///M3]

Originally Posted by gblansten

I know. I kept getting the sandwich detected light in my car until the odometer turned 1200.

Hahahahaha

[Mike van D]

Originally Posted by 12'M3Freak

Is there proof though. Do you have a BMW doc or something? I am not looking for word of mouth.

It is like the idiot sales guy saying "oh ya your key fob is rechargeable in the slot". Yet the book says when you get the batt light on the dash change the battery. If you also look at the battery it is not rechargeable. So, why do dumbasses keep saying it is? It may have been on older models but not the newer ones.

FYI...fobs for Cars with comfort access are not rechargable. Fobs for cars without are.

[highyo]

[URL="http://www.autoguide.com/auto-news/2011/02/hitler-spoof-attacks-the-bmw-1-series-m-coupes-n54-engine-video.html"]

Originally Posted by tibra1

Beg to differ ..launching these cars repeatdly has proven to cause issues with the mounting points of the diff to the rear subframe

http://www.m3post.com/forums/showthread.php?t=441119

My SA had leased an M3 as well and had to replace his LSD and subframe at 5K miles under factory warranty (to be fair he told me he launched the crap outta of it and let him sons do the same)

Obviously BMW's use of rubber mounts is not optimum design for launching..

Diff Mounts

launch control. jeez. if there is anything that misses the point of driving the M3 it's "launching". i'm actually surprised it's on the car. at least the point is not missed on the GTR, whose warranty ironically i think was voided if the tranny blew. and it really messed up Hitler

http://www.youtube.com/watch?v=TOAXJTTc__w

hitler is also peeved about the 1 series M:
http://www.youtube.com/watch?v=ZtenM2hFTgE

[doubleo]

From the m3 manual:

" Launch Control "
Launch Control enables an optimum acceleration when starting off on a road surface with good traction. Do not use Launch Control too often; otherwise, the powerful stresses on the vehicle will lead to premature component wear. Launch Control is available when the engine is at operating temperature, i.e. after driving continuously for approx. 6.2 miles/10 km. ... Launch Control is not available for use during the break-in phase, refer to page 126."

Page 126 says "After driving 1,200miles/2,000 km, engine and vehicle speeds can be gradually increased."

The manual does not specify how to gradually increase engine and vehicle speeds.

Frankly, I don't care if the vehicle's software or a BMW tech guy flips the switch and allows use of launch control at around 1250 miles. I will not be using launch control until about 3700, as I will increase engine speeds 500 rpm every 500 miles (I don't know where I got that from, but it sounds reasonable considering BMW did not specify how to 'gradually' increase engine speeds). Yes, it may sound boring, but I will take care of my baby.

[shaq diesel]

Man, with all the data on this board about break-in the fact there are still so many questions around break-in is hilarious. And granted I can understand why since salesmen will tell you anything if they think it'll make you happy.

As mentioned many times before, BMW's break-in procedure is the written document "they" are willing to stand by in regards to you getting the power-train through the warranty period relatively maintenance free. It's really just that simple.

They basically just want you to not red-line the engine until you get to 1200 miles (the approximate operating time in which BMW believes a large majority of floating foreign objects will wear off parts and become suspended in the operating fluids). At this point you drain the fluids, and put in new ones. From hence forth (unless you have a bad manufacturing tolerance at play) your filters should be able to trap any future floating objects that will separate from the various components.

Launch control isn't initiated until 1250 to further affirm this operating theory.

Other than that, everything is up to the owner. If you want to go out and dyno the car on day one, that's your choice. It would be wise to change out the fluid ASAP if you do (which again, if its a cost the owner is willing to burden BMW doesn't really care).

All this talk of "HP increase" after 1200 is mostly due to the fact you now take a different mental outlook on how you drive. You go from driving like a papa with 3 grandkids in the back seat to driving like a bat out of hell. Also, during that time the engine most likely (again depending on initial tolerances) becomes a little bit more efficient as everything wears into it "normal operating position".

[SirSpeedy]

OP, I do not have any factual answers to your questions though have two questions for you. How many miles do you have on your '12 M3? What do you plan to do with the information/ documentation you are requesting?

[ferrari6891]

At your 1200 service, the dealer will activate LC.

[NYC Drifter]