I have a new 2020 M5. Was told not to exceed 5K RPM for first 1500 miles. On a couple occasions I went into the 7-8K range for brief periods (maybe 2 seconds each time). Basically, I thought I was in auto mode but was actually in manual mode (was still learning the car). Did I do any damage?
Nah they're just talking about doing it all the time and over revving it a lot
Thanks @scottykilmer!
Generally you should not strain a new engine or 'grandpa' one. You do it slowly so it gets habituated. It is something like a training before marathon. You don't want get there unprepared.
Well, … incident - over rev - most likely is registered in car’s computer. Now, if you ever have some problem with a car - under warranty - dealer will plug in his fancy-shmancy computer, see over rev, … declares problem it’s yours! Yes, …
Also, if your car is leased, upon return, scan will tell there was an over rev, … significant charge will be levied as a result. ( ... although, you most likely hurt nothing!).
Anyway, it happens all the time, example: bud returned his Beemer lease with a fancy custom seat protection in place, … car was assessed extra C$3,000 (~ U$2,000) for noncompliance with terms of the lease upon return.
F.S.
I have not leased a car in decades but do leases now have restrictions on RPM? If they do not have it writing they cannot charge extra for it.
Also, any extra added to cars must be proven to do harm. A seat cover doesn't contribute to damage of anything under warranty so installing it cannot change the warranty.
The onboard computer might record more than you want anyone to know but unless they put restrictions in writing you can do as you please. Even if RPM is recorded and limits are exceeded they must prove excessive RPM did damage. That seems a harder case to prove in court than it is worth..
Well, … in seat cover case, my bud had to take them to court, … won after ~2 months of unwanted frustration and some cost.
As to what’s on computer: … dealers and leasing companies (and rental companies, too!) use info from computers to their advantage most often.
If there is a way, … they pretty well always will go after you. They all jerks, … one other case: … windshield had to be replaced mid-term lease on an Acura. It was replaced by Acura dealer at the direction of a leasing company. The guy replaced it, as directed, at his expense, … but dealer installed non-OEM one, … no questions asked. At return time, … leasing company assessed extra for close to C$1,500. Guy paid it, it was his employer lease, … so he just expensed it, … claimed it on his expenses account. Less hassle that way, …
… like I said above, if there is a way, … they will go after your money every time, … written in contract or not!
F.S.
Yes that is true. BMW is very strict with monitoring stuff like this. Someone I knew started having issues with his ZF transmission on his BMW. He took it in and the dealer replaced it under warranty. He was told to NOT USE LAUNCH CONTROL for 1200 miles for a new transmission break-in. Well as stubborn as he was, he used launch control THREE TIMES during the break-in and he ruined the transmission! He took it back to the dealer and they said they couldn't help him because all those launch controls he did were stored in the computer...tough luck for him. Always follow directions during a break-in period; it's very crucial for the life of the transmission/engine.
I hear you that a computer records everything but the idea that briefly exceeding break-in RPM voids my warranty sounds extreme. I could see if I tracked the car and it showed hours of abuse but I’d hope the ECU distinguishes the two. Basic minor user error shouldn’t be used as a reason to screw somebody like a game of gotcha. Am I just naive?
Own the car by the way. Never used launch control during break-in or since. Now have 3500 miles on it.
You be surprised the kind of data computers record these days! I have no idea what BMW logs, … but Porsche, for example, logs all peaks and dips in relevant parameters. Blipped a throttle to a rev limiter? Got that one, … do it again? Got that one, too! Disconnected battery for some undogly reason?Yep, … 4,431 kilometres ago! Voltage dips to a critical level? Boom! Code registered!
Anyway, … I didn’t mention it above, but inspection mechanics also use computer logged data for a benefit of a customer. Say, … "mint condition" chariot of your dreams is being scrutinized by you and your trusty mechanic: … data indicates one or three over rev peaks! Plus some other miscellaneous fluff. Wouldn’t you use such data to haggle down the asking price for that chariot, at least a bit? Provided that you would still be interested in said chariot, that is.
Best,
F.S.