10-16-2016, 04:12 PM | #89 |
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My friends and I have been discussing this 'break in' period and IF BMW really thought going over 5500rpm and WOT were not good for the car then the ECU would be limited just like it is when you start and try to rev when cold. The engineers would limit the power until you visited the dealer after the service at 1200kms.
DCT in sport mode revs to 7k before changing, that wouldn't happen if they thought it wasnt good for the car. Just my 2p worth. |
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10-17-2016, 06:41 AM | #90 | |
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Keep in mind they also datalog everything during the break in period. |
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10-17-2016, 04:56 PM | #91 |
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For what it's worth, I asked the Genius at my local dealer about what the break-in recommendations would be for my new M2 (coming soon). He said that he didn't think there was any break-in requirements anymore for M models, since this is pretty much done at the factory.
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10-18-2016, 03:30 AM | #92 |
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10-18-2016, 07:03 AM | #93 |
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Seat the rings. Drive firmly but not overly aggressive (redline WOT, hard kick-downs, etc.) Gradually drive more and more aggressively as miles progress. Driving like a pussy for the first 1200 miles may actually cause the motor to have less horsepower during its lifetime.
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10-18-2016, 09:15 AM | #94 | |
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Tolerances are so tight now you don't see the mass shedding of metal in the break in oil that we used to see. Last edited by PackPride85; 10-18-2016 at 09:21 AM.. |
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10-21-2016, 11:25 AM | #97 | |
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11-02-2016, 08:32 PM | #99 |
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So I hate to ask a stupid question after reading this entire thread but I just don't understand what engine load is. And how do I vary this during the first 1200 miles? I taking delivery at PCD in a few weeks and will be making a 1300 mile drive home. I'm obviously not a mechanic and google hasn't helped me much.
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11-02-2016, 10:09 PM | #100 | |
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12-13-2016, 11:12 PM | #101 |
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I've personally been playing by the rules (mostly) since picking mine up Monday. I haven't moved it into sport mode yet and minus a few conservative pulls I've been pretty good. I think I may have gone to 5800 rpm twice but blame my foot for that. It's a DCT by the way, coming from a manual I must say I am thoroughly impressed. It's not my daily driver either so it may take a bit before I hit 1200 miles.
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12-19-2016, 11:13 PM | #102 |
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I think i'm as confused as most. I have family connection who is the senior race engineer for the V8 Supercars here in Australia and reached out to him for advice;
(1) Modern engines and equipment "break-in" very quickly but do require some hard pulls. He figured the factory would of done this. For their cars, they do a few dino pulls, spend a couple hours "breaking" it in (quite aggressive by the sounds of it). Then, every race day they warm up the car for an hour and it's ready for racing. So from a performance stand-point, that's all folks. No 2000km run in, not even close. He did qualify that they rebuild the engine every 3500km so it's not apples and apples with a production car that is (hopefully) going to do 200,000+km. That is, they are not concerned with longevity like we are. (2) He was pretty adamant that the worst thing you can do to your car is drifting/sliding at any stage in the car's life. Once the wheels let go and then grab again, there are lots of reverse torques going through the drive train that put serious strain on the parts. His advice was to warm everything up, keep the nannies on and go hard, kiss the limiter at times, and shift. It's designed for that but don't hang out with WOT banging on the limiter and don't drift - keep traction. (3) DISCLAIMER He also said to follow the BMW advice. This was in connection to both the points of longevity and "are they watching you". To this later point, does anyone have any substantiated evidence that BMW does void the warranty? Does anyone know what they are tracking? is it 1 second sampled data for the history of the car or simply a recording of "Max revs"? I have the M2 MT and the throttle blip wacks it up on aggressive downshifting. |
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12-23-2016, 07:11 PM | #103 |
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If they do, the owner of the HEA car I test drove this summer is in for nasty surprise when he/she comes in for the 1200 mile checkup because I sure as sh*t floored that thing and took it up to redline.
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12-28-2016, 11:02 AM | #104 |
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Is it ok to drive a few hundred more miles before the service?
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12-29-2016, 03:21 PM | #105 |
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Thanks I'm getting my m2 in two weeks and that video was very useful to watch.
Interesting to note he said to get the temperature up to normal operating range every time you drive it when in break in period (ie avoid short drives) I'll have to take a longer detour to work when the car is new lol as its just a short drive for me. |
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12-29-2016, 07:14 PM | #106 | |
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12-31-2016, 04:30 AM | #107 | ||
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12-31-2016, 08:25 AM | #108 |
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12-31-2016, 08:29 AM | #109 | |||
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01-02-2017, 07:05 PM | #110 | |
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Dealer Genius's and management recommended staying ~<5000 rpm for 1200 mile break in period. In short, I've stuck to the recommended factory break in rules and drive the car with care, and with clean shifts. I always downshift between all gears in all driving situations, and vary engine load often. I've driven a mixture of rural roads, city, and highway. Taken the car to 100 mph on a few occasions, it's easy to do in 6th gear @ 3,200rpm at 75mph. I generally keep rpm between 2,500-4500rpm in all road conditions and have generally stuck to posted speed limit during break in. I switch to sport and sport+ 1-2x/week and after driving for 30 min to perform 1/2 throttle pulls. Varying load while getting used to the low end torque. I've slipped the clutch accidentally on 2 occasions ~6,000rpm; had been driving for at least an hour before over reviving. Had dealer install DINAN P1 package before taking delivery. Performance at 6,000ft elevation is exceptional. 1/2 throttle puls in Sport mode during break in period are impressive, scares the wife and she drives black '16 M235i Xdrive with all season tires. Overall, I'm very impressed with the M2/M235i and BMW product. |
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