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F30 / F31 / F32 / F33 / F36 (2012 - current)
The sixth generation 3 series, chassis code F30. 2013 model year 328i and 335i sedans now in production. Read the F30 frequently asked question thread for all your basic question and dive into all the details in the ultimate F30 information thread.

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  #26  
Old 12-26-2012, 10:46 PM
DavidM1975 DavidM1975 is offline
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As the OP - really glad you find it useful!
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  #27  
Old 12-27-2012, 04:56 AM
live4wknds live4wknds is offline
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I followed break-in per BMW. Also tried to exercise every single option, feature, accessory that I might not have normally used during the time I was breaking in the car (heater, wipers in summer, etc...)
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  #28  
Old 12-27-2012, 06:34 AM
The X Men The X Men is offline
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Originally Posted by DavidM1975 View Post
No disrespect meant but if I had to pick between these two sources of advice I think I'll trust the owner's manual.
I agree, not breaking in the a new engine might also cause the engine to burn oil.
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  #29  
Old 12-27-2012, 03:16 PM
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CALWATERBOY CALWATERBOY is offline
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Originally Posted by jlopez View Post
Glad I came across this thread. I take delivery on my 2013 335i msport in the AM, this may curve my heavy foot.

Very wise. Break-in goes quickly.
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  #30  
Old 12-27-2012, 06:48 PM
wayner44 wayner44 is offline
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Nothing is going to happen to your car and it wont be more likely to burn oil. The break in procedure is for people who like to baby new things.
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  #31  
Old 12-28-2012, 07:25 AM
The X Men The X Men is offline
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Originally Posted by wayner44 View Post
Nothing is going to happen to your car and it wont be more likely to burn oil. The break in procedure is for people who like to baby new things.
Yes, people who like to baby new things like BMW design engineers
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  #32  
Old 12-28-2012, 08:24 AM
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SergioK SergioK is offline
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Originally Posted by wayner44 View Post
Nothing is going to happen to your car and it wont be more likely to burn oil. The break in procedure is for people who like to baby new things.
Here's the thing, you can spew opinions on what you believe and have heard through the intarwebs all you'd like, but unless you provide cold hard evidence to disprove and refute what the manufacturer of a product suggests, it's all just that, your opinion, which frankly, doesn't carry as much value as what has been previously stated. Unless of course your opinion REALLY matters.
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  #33  
Old 12-28-2012, 09:03 AM
Elk Elk is offline
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It is possible all the manufacturers which recommend break-in are wrong and duping the public for some unknown reason and with no apparent benefit to them. Perhaps they are all engaged in a break-in conspiracy.

I recommend taking the risk they are correct. They might just have some sense of the mechanics of their cars. It is a short easy to process to follow the procedure - with no downside and a nice likely upside.
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  #34  
Old 12-28-2012, 10:27 AM
notfound notfound is offline
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If I was leasing the car it would have been a completely different story, but I will continue driving it nice and gentle until it reaches 1200 miles, as instructed. I don't see why someone would not want to follow the recommendations... there might be 1,000 design reasons why it has to be this way.
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  #35  
Old 12-28-2012, 11:30 AM
Taeksoo Taeksoo is online now
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Originally Posted by notfound View Post
If I was leasing the car it would have been a completely different story, but I will continue driving it nice and gentle until it reaches 1200 miles, as instructed. I don't see why someone would not want to follow the recommendations... there might be 1,000 design reasons why it has to be this way.
In my opinion, they didn't say anything about driving 'nicely'. They said not go over 4,500rpm and not over 100 mph.
I just my mine too and I've been reading allot and driving allot to get to 1,200 miles. Don't want to go too far into the details but it makes sense for it to be driven (some what hard and ruff) up to 4,500rmp so the rings get sealed properly. I know some go over it but I try not too.
Every day I go out for a drive I notice the car gets little more smoother. So, maybe it is being broken in.
Anyways, no matter what I or anyone say, it's all up to how you feel. Red Line it if u feel it doesn't need to be broken in.... Baby it if you feel it needs to be.... For me I picked something in the middle. Just my 2cents.

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  #36  
Old 12-28-2012, 12:33 PM
The X Men The X Men is offline
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Originally Posted by Taeksoo View Post
Don't want to go too far into the details but it makes sense for it to be driven (some what hard and ruff) up to 4,500rmp so the rings get sealed properly. I know some go over it but I try not too.
I think BMW puts every new car on a dyno at the factory and drive it up to something like 100 MPH, that procedure pretty much seats the rings.
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  #37  
Old 12-28-2012, 01:57 PM
Honker Honker is offline
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I had bought a new truck a couple years ago and the manual stated a break in period; do not go faster than xx mph for the first xxx miles; do not tow for the first xxx miles, etc.

I went on a GM diesel website and there was a big thread on the subject and the general consensus was that the engines were run full out at the factory before they left. So why the break in period? It was more for the driveline than the engine. The rear differential is a fairly close tolerance piece of machinery and there is some wear during the initial miles. Also, by avoiding the high speed or towing you are limiting the heat cycling in the gears as they wear in.

The guy who was stating this seemed fairly knowledgeable and a respected member, but I cannot comment on his accuracy in this matter. But it seemed to make sense to me. Of course it could all be BS.
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  #38  
Old 12-28-2012, 02:10 PM
Ken335i Ken335i is offline
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The break in period is a little like the tease that you have to go through to get to home plate with your date. First, it's the light caress, followed by some passionate kissing , then a hand up to the bra clasp for some solid road handling, all building to the time when you can really put your foot into it . The wait, my friends, just makes the final result all that more special .
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  #39  
Old 12-30-2012, 05:14 PM
berkeley223 berkeley223 is offline
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has anyone NOT broken in the car per the manual and had any issues at all (or heard of any)? Still never heard of one instance.
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  #40  
Old 12-30-2012, 05:46 PM
DavidM1975 DavidM1975 is offline
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That is a very good question...but how do we find a truthful answer? I am intending to keep my car for at least the next 5 years, possibly longer. Whatever the answer to this would be I am intending to play it safe. After the initial 1200miles I will certainly push my F30 to the limits
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  #41  
Old 12-30-2012, 05:52 PM
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EddieB EddieB is offline
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Originally Posted by CALWATERBOY View Post
Ah, yessssssss....DO avoid 100+mph operation for the break-in period.

After, no need to pay attention to speed limits.
As long you don't mind going to jail!
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  #42  
Old 12-30-2012, 05:54 PM
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EddieB EddieB is offline
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Originally Posted by Ken335i View Post
The break in period is a little like the tease that you have to go through to get to home plate with your date. First, it's the light caress, followed by some passionate kissing , then a hand up to the bra clasp for some solid road handling, all building to the time when you can really put your foot into it . The wait, my friends, just makes the final result all that more special .
That is one hell of an analogy
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  #43  
Old 12-31-2012, 03:56 AM
pkim1079 pkim1079 is offline
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Originally Posted by DMonE621 View Post
Break in?! Really!?!?

I drove it hard from the moment I got in it. Actually, I peeled out of the dealership parking lot and I have X-drive! It's a BMW, it wants to be driven. Drive it like you stole it!
Werd. Me too. Its not like the engines are put together and slapped in a frame and have never been turned on. Mines a lease. Drive the **** out of it. Return it. Get an m2. Repeat. Get a new xxx. Repeat. Lol.

Lesson of the post: dont always trust cpo. Lol.
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  #44  
Old 12-31-2012, 06:45 AM
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mdsbuc mdsbuc is offline
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Originally Posted by EddieB View Post
As long you don't mind going to jail!
Not if you pick it up ED. I picked my 5er up in Germany in '05 and after the break in I took it right up to the limiter, 150+ mph, legally. Long sections of the Autobahn were cruised comfortably at 110-120 mph. The car was so planted it felt like driving 80 on U.S. interstate highways.
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  #45  
Old 12-31-2012, 06:56 AM
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EddieB EddieB is offline
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Originally Posted by mdsbuc View Post
Not if you pick it up ED. I picked my 5er up in Germany in '05 and after the break in I took it right up to the limiter, 150+ mph, legally. Long sections of the Autobahn were cruised comfortably at 110-120 mph. The car was so planted it felt like driving 80 on U.S. interstate highways.
Duh. Talking about our lame speed laws.
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  #46  
Old 12-31-2012, 10:27 AM
dsackman dsackman is offline
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Quote:
Originally Posted by Honker View Post
I had bought a new truck a couple years ago and the manual stated a break in period; do not go faster than xx mph for the first xxx miles; do not tow for the first xxx miles, etc.

I went on a GM diesel website and there was a big thread on the subject and the general consensus was that the engines were run full out at the factory before they left. So why the break in period? It was more for the driveline than the engine. The rear differential is a fairly close tolerance piece of machinery and there is some wear during the initial miles. Also, by avoiding the high speed or towing you are limiting the heat cycling in the gears as they wear in.

The guy who was stating this seemed fairly knowledgeable and a respected member, but I cannot comment on his accuracy in this matter. But it seemed to make sense to me. Of course it could all be BS.

Not BS at all. All surfaces including brakes and tires need to be bedded in. Doing that at high stresses will not give the optimal results. With tires could even be dangerous as new tires do not have the road holding capabilities yet.

Heat cycling of the metal is also quite important. This is even true for new rifles, where a well bedded in rifle shoots better than one that was abused from the beginning.

Have respect for the ultimate driving machine and the engineers who created it.


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  #47  
Old 01-01-2013, 07:46 AM
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chasfh chasfh is offline
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Is the break-in procedure, and the expected benefit, different for 8AT versus 6MT?
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  #48  
Old 01-01-2013, 08:05 AM
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MOPAULY MOPAULY is offline
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Ignorance is bliss, and abundant in this thread. Proper break in allows the mechanical components to wear in together properly. It's not a race car that only needs to last a few hundred laps or miles, it needs to last 10 or 15 years or maybe 150 to 200k miles...but hey it's your wallet do what you want.
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Last edited by MOPAULY; 01-01-2013 at 08:07 AM.
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  #49  
Old 01-01-2013, 08:49 AM
vonmayr vonmayr is offline
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Originally Posted by chasfh View Post
Is the break-in procedure, and the expected benefit, different for 8AT versus 6MT?
No difference between the two for purposes of the recommended break in.
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  #50  
Old 01-01-2013, 02:28 PM
Sea Ray Mark Sea Ray Mark is offline
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Well, I'm up to about 500 miles and getting a little impatient. I find myself shifting it manually so I can get on it a little bit and shift before it hits 4500. If you leave it in automatic it will wind up to high. Trying real hard to be a good boy and break it in right but the car wants to go and so do I. Maybe I'll try leaving it in Eco Mode which I refer to as the "BMW OFF" button so I'm less tempted to have fun. This is my first BMW so I'm real anxious to see what this thing will do. 700 more to go. Mark
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