12-11-2023, 03:21 AM | #1 |
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Break-in service's effect on performance is real or myth?
Hello Everyone,
My 2000km (1200miles) break-in service is due in 1000kms. I was wondering if any of you really could feel the difference in performance between pre and past service, or it is just a BMW marketing BS? If you could describe the feeling with numbers e.g. +10-20% power, it would be most appreciated |
12-11-2023, 06:27 AM | #3 |
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My CA alluded to this being real, but not sure if this is just something he was parroting or really knew. I think the difference is you’re trying to stay below rpm limits and a lot more power is on tap when you lay into it. Makes it seem like two different cars.
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12-11-2023, 07:00 AM | #5 |
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Agreed. I was very careful with the 1200 mile guideline. Recently (>1500 miles), I’ve put my foot heavy into the pedal and, damn, it feels like 2 different cars. The car is a monster. YMMV
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12-11-2023, 07:18 AM | #6 |
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There’s been multiple threads on this where BMW technicians have confirmed all they do is change the engine oil and filter, and diff oil.
They don’t unlock the higher top speed (if the driver’s pack is optioned), they don’t unlock ‘launch control’, they don’t unlock higher RPM within the engine. You can do all of the above from the moment you drive off the forecourt if you want, it’s just not advised or part of the ‘running-in procedure’. |
12-11-2023, 07:40 AM | #7 | |
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I have trouble believing this to be true. I assume that is controlled by the ECU and that would mean the dealership would be unlocking the ECU...and that is not happening. |
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12-11-2023, 07:41 AM | #8 |
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Fluid and filter change. But gives the green light on the right foot so that's the performance difference
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12-11-2023, 08:51 AM | #9 |
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Break-in service from BMW tech guy.
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12-11-2023, 10:52 AM | #10 |
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Nice video and great to see the whole process and get the explanation behind everything.
Shame you didn’t show the tech updating the car with the BMW software as he said he would explain more about this. I’m still not convinced on the power being held back in ‘run-in mode’. Keep up the videos! |
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12-11-2023, 11:24 AM | #11 | |
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12-11-2023, 12:55 PM | #13 |
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12-11-2023, 01:04 PM | #15 |
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I can't tell you if there is anything from a performance improvement standpoint. The SA told me they finished the fluid changes and were just "finishing up the new programming" when I was waiting to pick it up. I also noticed on my paperwork they replaced the rear diff "screw plug with o-ring" though the tech in the second video said that was not necessary.
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12-11-2023, 01:06 PM | #16 |
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Because I have the M drivers package and spoke with many M-Tech’s I know around town about it, as well as inquiring to BMW N.A. Online about it via email.
The only thing they do at service is what you see in video above. Specifics of what you order on the car are done in-factory. I did not take my BMW M2 to the same dealership I bought it from, I can imagine some dealerships not doing the “de-limiter” on accident if this were the case. Every de-limit drivers package tune is done via software straight from SLP Mexico plant for the M2. |
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12-11-2023, 01:09 PM | #17 | |
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We know no software update/change is done, but that's not a requirement for the condition to be true. So you're saying you didn't test it yourself? Without testing it there's no disproving it. The manual is explicit about it. I tend to trust that information to be true, and believe the car would only go over 260km/h after the RiS. |
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12-11-2023, 01:13 PM | #18 | |
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12-11-2023, 01:14 PM | #19 | |
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12-11-2023, 01:15 PM | #21 |
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According to this (which is questionable) at ~9:30 there is PDI (delivery mode) and then "running in mode" for M cars that is in fact restricted. And then unrestricted after run-in mode. That is contradictory to what I understand to be true. Odd.
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12-11-2023, 01:18 PM | #22 |
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