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BMW M5 F90 (2018+) General Forums Mechanical Maintenance: Break-in | Oil & Fluids | Servicing | TSB | Recalls    F90 M5 "Late" run in service ok?

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      07-20-2021, 02:22 PM   #23
BlueString
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My SA told me under 2000 miles for the break in is OK. That said, I did mine at about 1300 miles by the time my appointment date came up.
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      07-20-2021, 02:33 PM   #24
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Mine says 1199.
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      07-20-2021, 07:02 PM   #25
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some update

So it turns out the reason the first run-in service was late was because there were no stock of front differential fluids in all service centers in Korea.

Many others were affected by this and got a late service.
Warranty is fully alive.

Also, I took the car out for test drive (for 2 days) and car is very normal and strong.

Even at 6500mile since the last engine oil change, the oil level is still at full.

I'll post more update after I acquire the car.

Thanks for your concerns.
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      07-21-2021, 08:57 AM   #26
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Best of luck! As others here have said, we are all just trying to help!
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      07-21-2021, 02:42 PM   #27
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Quote:
Originally Posted by hjl113 View Post
So it turns out the reason the first run-in service was late was because there were no stock of front differential fluids in all service centers in Korea.

Many others were affected by this and got a late service.
Warranty is fully alive.

Also, I took the car out for test drive (for 2 days) and car is very normal and strong.

Even at 6500mile since the last engine oil change, the oil level is still at full.

I'll post more update after I acquire the car.

Thanks for your concerns.
Even still, if they had to wait 5K miles for the differential oil and even though the warranty was still intact, the owner should have still had the engine oil changed. Just seems lazy or a lack of care
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      07-22-2021, 04:43 AM   #28
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Quote:
Originally Posted by M5C_Uber_Alles View Post
Even still, if they had to wait 5K miles for the differential oil and even though the warranty was still intact, the owner should have still had the engine oil changed. Just seems lazy or a lack of care
Agreed...
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      07-22-2021, 07:15 AM   #29
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thanks guys

I've put a few hundred miles on the car now.
The car seems very strong and I'm happy with it.

I went ahead and changed the oil (and the filter) myself today.
Put 10 quarts of Redline 0w-30 (LL-01FE) and reset the timer on the dashboard (which suggest 15000km (9400miles) as the next oil change)

I know there could be a risk on a long term, but in the short term, everything seem to be in order.

Also installed 3D Design carbon paddle shifter today,
couldn't be happier.

Thanks guys!
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      01-30-2023, 04:45 AM   #30
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Quote:
Originally Posted by Rickala View Post
I just purchased one from a used car lot that was in great condition. Come to find that the service wasn’t done until 5100 miles. I’m very concerned about it but I’m kind of stuck at this point. The reality is it probably won’t affect the car, because almost every car I’ve ever purchased didn’t require an oil change at 1200 miles. I’ve had many high-performance cars and there is no such requirement and I don’t see why the S63 is so special. Having said that, I could possibly be denied if there is a major engine issue

Again, I’ve had many high-performance cars and there was no such requirement and I don’t see why the M5 is so special. It's really the same engine as the M550 with a higher Rev limiter. The rear diff is more of a concern. But they can be found used for 1500. It has 11,000 on it now. It's a unique color and I love it. BTw, the break in oil is the same oil the car regular uses. The dealer looked it up for me.
1: what color is that
2: idk what performance cars you've owned but 90% of high performance cars have a break in service (other than porsche). Heck camaros do it at 500 miles.
3: I can't tell if you're trolling when you say the n63 and s63 are the same engine... the only thing the same is pretty much the bore and stroke and maybe the block.
4: at least you're right about the oil...
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      01-30-2023, 10:42 AM   #31
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In addition, you may experience issues when you come to trade in or sell the car should you decide to go for it despite the opinions given here.
It could have a significant impact on how much you get

My 2 cents is walk away, there are plenty of other m5 a out there that will be fully certified
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      01-30-2023, 11:28 AM   #32
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Quote:
Originally Posted by micvite View Post
1: what color is that
2: idk what performance cars you've owned but 90% of high performance cars have a break in service (other than porsche). Heck camaros do it at 500 miles.
3: I can't tell if you're trolling when you say the n63 and s63 are the same engine... the only thing the same is pretty much the bore and stroke and maybe the block.
4: at least you're right about the oil...
Read my mind entirely.
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Not a BMW guy...but certainly an M5 guy.
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      01-31-2023, 11:11 PM   #33
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Quote:
Originally Posted by Rickala View Post
I just purchased one from a used car lot that was in great condition. Come to find that the service wasn’t done until 5100 miles. I’m very concerned about it but I’m kind of stuck at this point. The reality is it probably won’t affect the car, because almost every car I’ve ever purchased didn’t require an oil change at 1200 miles. I’ve had many high-performance cars and there is no such requirement and I don’t see why the S63 is so special. Having said that, I could possibly be denied if there is a major engine issue

Again, I’ve had many high-performance cars and there was no such requirement and I don’t see why the M5 is so special. It's really the same engine as the M550 with a higher Rev limiter. The rear diff is more of a concern. But they can be found used for 1500. It has 11,000 on it now. It's a unique color and I love it. BTw, the break in oil is the same oil the car regular uses. The dealer looked it up for me.
The dealer is incorrect about the about the oil. The following video is a great explanation on the break in service (I suggest skipping to minute 9)


The video shows that the oil is in fact a mineral based oil during break in and is much thinner than the regular oil. This is why there are restrictions on speed/RPM. The special oil isn't able to properly lubricate in those conditions.

The other good explanation in that video is there is in fact a change at the break in service. What difference it makes is not explained.

Non-M cars start in transport mode and during PDI, get set to normal mode.

M cars start in transport mode and go into running in mode during PDI and at the break in service the tech has to switch to to normal mode.

The diff oil is also completely different. It goes from some milky color to a translucent green color.
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      02-01-2023, 08:24 PM   #34
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I did some testing before and after the service.
80-120 was still the same time after several runs.

What I did notice was D3 may have started behaving differently. Some downshifts put the RPMs at 7k+ and I didn't notice it doing that before. I also noticed it now holds RPMs at 6k+ in some cases where I'm not sure it was doing that before. So maybe the removal of some constraints while in D3?
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      02-05-2023, 04:44 PM   #35
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Quote:
Originally Posted by Alberta View Post
Hi,

5000 miles over is quite a significative difference!

BMW uses a special oil while the engine is in the break-in period, I would be afraid that small metal particles stayed in the engine for 6200 miles.

I wouldn't consider buying this car.

The other services were done at the right mileage ?
They use the same oil after break in, as during. I've had it looked up by the local dealer. It makes no sense for them to use an oil that may harm the engine, when inevitably new owner or a test driver romps the car. Think about it...
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      02-05-2023, 04:53 PM   #36
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Quote:
Originally Posted by micvite View Post
1: what color is that
2: idk what performance cars you've owned but 90% of high performance cars have a break in service (other than porsche). Heck camaros do it at 500 miles.
3: I can't tell if you're trolling when you say the n63 and s63 are the same engine... the only thing the same is pretty much the bore and stroke and maybe the block.
4: at least you're right about the oil...
Motegi Red

I have had just about every flavor of car except BMW until recently. Although I work on them all the time.

Not trolling. Not ignorant either.

They are pretty much the same engine. I stand by that comment. There are differences, but to say they don't share the majority of the same DNA is incorrect.
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Last edited by Rickala; 02-05-2023 at 11:07 PM..
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