[adam_ludera]

I've just heard something ridiculous from my dealership and I'm wondering if there's any knowledge in that regards here..

I was looking at buying 826M bicolor of some online shop. They have two part numbers for front 19" wheels - one for cars with ceramic brakes and one for those with regular brakes. Since the ones for ceramic are ca. 100 USD cheaper per piece - seems like a no brainer.

That said, I went forward and checked with the said dealership if the ceramic specific wheel is compatible with my car fitted with steel discs.

Their answer was that if I would put those ceramic specific, it would void my warranty on steering rack, drivetrain and others, and so would happen if I put any wheel that is not BMW specific for my VIN number.

This sounds batshit crazy. I even went ahead and checked the user manual which says that BMW prescribes the wheel size but there's nothing about prescribing specific wheels to be used.

What those guys are saying is basically that any aftermarket wheel voids warranty on most important components.. Even if the wheel is to the exact size specs of the standard wheels.

Did you come across such nonsense?

[GolfCoyote]

That sounds pretty ridiculous to me.

Are they going to void your warranty if you use a non-OEM tire too? I’m not sure if some dealers just actively want to dick over their customers or they are just that clueless.

[BeamerBoomer]

Originally Posted by adam_ludera

I've just heard something ridiculous from my dealership and I'm wondering if there's any knowledge in that regards here..

I was looking at buying 826M bicolor of some online shop. They have two part numbers for front 19" wheels - one for cars with ceramic brakes and one for those with regular brakes. Since the ones for ceramic are ca. 100 USD cheaper per piece - seems like a no brainer.

That said, I went forward and checked with the said dealership if the ceramic specific wheel is compatible with my car fitted with steel discs.

Their answer was that if I would put those ceramic specific, it would void my warranty on steering rack, drivetrain and others, and so would happen if I put any wheel that is not BMW specific for my VIN number.

This sounds batshit crazy. I even went ahead and checked the user manual which says that BMW prescribes the wheel size but there's nothing about prescribing specific wheels to be used.

What those guys are saying is basically that any aftermarket wheel voids warranty on most important components.. Even if the wheel is to the exact size specs of the standard wheels.

Did you come across such nonsense?

Well, in general they always could claim that a non-OEM part of certain significance caused damage to the car. And in many cases they may even have a point there. But in front of court, they would have to proof the non-OEM part to be the culprit.
But interesting to hear there are different types of OEM wheels for the different brake types. Is this confirmed? Would also mean if you upgrade the brakes to ceramic ones, you would have to change the wheels. In all offers for OEM wheels I saw in shops before, nobody ever mentioned this difference about the brakes. I only remeber that you cannot opt for the 825M if you have the ceramics.

[GrannyShiftG80]

Originally Posted by adam_ludera

I've just heard something ridiculous from my dealership and I'm wondering if there's any knowledge in that regards here..

I was looking at buying 826M bicolor of some online shop. They have two part numbers for front 19" wheels - one for cars with ceramic brakes and one for those with regular brakes. Since the ones for ceramic are ca. 100 USD cheaper per piece - seems like a no brainer.

That said, I went forward and checked with the said dealership if the ceramic specific wheel is compatible with my car fitted with steel discs.

Their answer was that if I would put those ceramic specific, it would void my warranty on steering rack, drivetrain and others, and so would happen if I put any wheel that is not BMW specific for my VIN number.

This sounds batshit crazy. I even went ahead and checked the user manual which says that BMW prescribes the wheel size but there's nothing about prescribing specific wheels to be used.

What those guys are saying is basically that any aftermarket wheel voids warranty on most important components.. Even if the wheel is to the exact size specs of the standard wheels.

Did you come across such nonsense?

that sounds crazy but it is dealer and country specific. I am not sure how it works in Poland but that would never hold here in north america

[adam_ludera]

Originally Posted by BeamerBoomer

But interesting to hear there are different types of OEM wheels for the different brake types. Is this confirmed? Would also mean if you upgrade the brakes to ceramic ones, you would have to change the wheels. In all offers for OEM wheels I saw in shops before, nobody ever mentioned this difference about the brakes.

From what I can tell it is the case. 36117882867 is part number for 826M for ceramics (see the notes), 36108093836 is pn for 826M for steel brakes.

[M3SQRD]

Originally Posted by adam_ludera

From what I can tell it is the case. 36117882867 is part number for 826M for ceramics (see the notes), 36108093836 is pn for 826M for steel brakes.

This makes absolutely no sense that BMW would manufacture two versions of the same wheel with the same width and offset. So the CCB version has a different barrel and/or spoke profile? The CCB version works on both CCB and iron brake options so why not just make the CCB version?

Nonsense that an aftermarket wheel of the same or different width and offset would cause steering, driveline, etc. failures and invalidate your warranty

[RACE M3]

Do yourself and find yourself a new dealer before you actually need them. Changing parts could and should void warranties, but there’s a line.

[Berzerker]

Originally Posted by RACE M3

Do yourself and find yourself a new dealer before you actually need them. Changing parts could and should void warranties, but there’s a line.

Changing parts should not at all void warranty under any circumstances. It's illegal in the US for anyone to a void a warranty simply because a part was changed or modified, in fact.

Just because companies will go that route and beat you into submission to comply doesn't mean it's right.

[dzblam]

Originally Posted by adam_ludera

I've just heard something ridiculous from my dealership and I'm wondering if there's any knowledge in that regards here..

I was looking at buying 826M bicolor of some online shop. They have two part numbers for front 19" wheels - one for cars with ceramic brakes and one for those with regular brakes. Since the ones for ceramic are ca. 100 USD cheaper per piece - seems like a no brainer.

That said, I went forward and checked with the said dealership if the ceramic specific wheel is compatible with my car fitted with steel discs.

Their answer was that if I would put those ceramic specific, it would void my warranty on steering rack, drivetrain and others, and so would happen if I put any wheel that is not BMW specific for my VIN number.

This sounds batshit crazy. I even went ahead and checked the user manual which says that BMW prescribes the wheel size but there's nothing about prescribing specific wheels to be used.

What those guys are saying is basically that any aftermarket wheel voids warranty on most important components.. Even if the wheel is to the exact size specs of the standard wheels.

Did you come across such nonsense?

I also heard the same thing from my dealership. I've got a set of wheels on order (20x11 295/30/20 rear, 20x10 285/30/20 front) and I asked my SA if they would be able to put those wheels on for me. He ended up talking to the service manager who said they won't touch it and that if I have those wheels/tires on and I happen to have a part go out (ex: transfer case), they will not cover that under warranty because different wheel/tire sizes were used, sounds pretty ridiculous to me.

[forcefed]

Originally Posted by dzblam

I also heard the same thing from my dealership. I've got a set of wheels on order (20x11 295/30/20 rear, 20x10 285/30/20 front) and I asked my SA if they would be able to put those wheels on for me. He ended up talking to the service manager who said they won't touch it and that if I have those wheels/tires on and I happen to have a part go out (ex: transfer case), they will not cover that under warranty because different wheel/tire sizes were used, sounds pretty ridiculous to me.

He's right though, the rear tires are over 1.1% taller than the front tires.

[rm56well]

How can this be as aren't winter wheels and tyres different dimensions? Do they void warranty.

Also if the drive train is so sensitive, what's the deal with m performance has kit, surely this puts more stress on the attached components.

[MJBO]

Have to admit this is a large part of why I went for 1000M M Perf wheels and M Perf HAS kit fitted by my dealer. Didn’t want any potential warranty hassles down the road.

[mdr955]

Originally Posted by forcefed

He's right though, the rear tires are over 1.1% taller than the front tires.

Are you sure about that? I get .88%

[forcefed]

Originally Posted by mdr955

Are you sure about that? I get .88%

Yup

[mdr955]

Originally Posted by forcefed

Yup

What am I missing here.

[forcefed]

Originally Posted by mdr955

What am I missing here.

Think yours is taking the difference from the bigger tire while mine is doing it from the smaller one, if you subtract 0.88% from the larger tire you get the smaller one while if you multiply the smaller one by 1.1% you get the larger one.
Technicy both are correct but we are going from the smaller tire.

[Berzerker]

Originally Posted by forcefed

Think yours is taking the difference from the bigger tire while mine is doing it from the smaller one, if you subtract 0.88% from the larger tire you get the smaller one while if you multiply the smaller one by 1.1% you get the larger one.
Technicy both are correct but we are going from the smaller tire.

Yep.

Easier to demonstrate with more round numbers.

Ex: 100 is 33% larger than 75, but 75 is 25% smaller than 100.

[Race_Doc11]

I’ve had mid pipe installed at the dealer the only thing they said is that it voids the exhaust warranty that’s it. Go to another dealer.

[eddi_dem]

Originally Posted by M3SQRD

This makes absolutely no sense that BMW would manufacture two versions of the same wheel with the same width and offset. So the CCB version has a different barrel and/or spoke profile? The CCB version works on both CCB and iron brake options so why not just make the CCB version?

Nonsense that an aftermarket wheel of the same or different width and offset would cause steering, driveline, etc. failures and invalidate your warranty

Super strange indeed. Normally what you see is wheels for CCBs are larger in diameter to leave room for the large discs but I’ve never heard this before!

[M3SQRD]

Originally Posted by Berzerker

Yep.

Easier to demonstrate with more round numbers.

Ex: 100 is 33% larger than 75, but 75 is 25% smaller than 100.

I always get a laugh during a design review when you say there’s a 200% change and a non-technical person (or you hope that it is otherwise it’s no longer funny!) will say that’s incorrect and it is a factor of 3x higher so it’s a 300% change