[NGT2]

My SA, who I like a lot, is ADAMANT that I not switch to non run flats. He swears he’s seen transfer cases go out within ten thousand miles of swapping. I challenged him that the same size and same tire on all four wheels shouldn’t make a difference and he swears it does. He also said that if it came with runflat and I switch, and there is an issue, the first thing BMW will do is ask about the tires and if they’re different than factory.

Any input with some info I can take back to challenge this further? He makes me apprehensive enough to just say screw it and stick with the run flats. I wish Michelin made the 19” size PS4 AS runflat to fit our cars, but it’s too wide. If I had 20” wheels, they’d have runflats to fit.

I went Pirelli last time and had one bubble (they covered it) and they’ve worn out in less than 20k miles. I know that’s partially on me. But I’m thinking about going with the Continentals this time. I don’t want to go back to the GY Eagle Sports.

[Trivium88]

Originally Posted by HerkHealer

Joe /mike, this is the kit I went with. Modern Spare.
Everything comes in a bag and it fits perfect in the trunk using the tie downs.
Not sure on miles, but i'd imagine quite a lot. I think I bought mine on sale for around $425 that included the jack, spacer......everything.

https://modernspare.com/product/2017...e-kit-options/

I know that spare wheel would be to be able to get to a tire shop but... would it negatively affect the XDrive system and the transfer case if driving long distances?

[eliphil]

Originally Posted by HerkHealer

Joe /mike, this is the kit I went with. Modern Spare.
Everything comes in a bag and it fits perfect in the trunk using the tie downs.
Not sure on miles, but i'd imagine quite a lot. I think I bought mine on sale for around $425 that included the jack, spacer......everything.

https://modernspare.com/product/2017...e-kit-options/

Thanks guys I’m just awaiting a return text to see how many miles the tire will run. I’m hoping for at least 250 miles

[chadwick]

Originally Posted by Neusser

Indeed. Common sense.

If you hit a pothole at speed with a low-profile tire, you are done for (usually). Runflat makes no difference.

Last pothole I hit was 15 years ago when I lived in DC, and it destroyed my Pilot Sport. Potholes seem not to exist in most of Western Europe, or I have become an exceptional driver.

When this happened I was like “where did that come from?!” Didn’t even see it. Thinking back, I checked my blind spot and was changing lanes so just missed it. Hate knowing I could have avoided it and should have.

[chadwick]

Luck worked out… a new discount tire just opened up in the town where I was travelling to. They gave me a $500 deal off the tires I wanted (Pilot Sports 4S) and gave me a good credit on the emergency tire, and state sales tax is 3% less than in Texas. So doing that right now. 😁

[eliphil]

Originally Posted by HerkHealer

Joe /mike, this is the kit I went with. Modern Spare.
Everything comes in a bag and it fits perfect in the trunk using the tie downs.
Not sure on miles, but i'd imagine quite a lot. I think I bought mine on sale for around $425 that included the jack, spacer......everything.

https://modernspare.com/product/2017...e-kit-options/

Ok guys the tire is good for 5000 miles but only 300 at a time due to concerns for the drive train which seems a little strange. I am going for it and hope to never need it. Thank you for the recommendation really appreciate it.

[BWilson263]

Originally Posted by eliphil

Ok guys the tire is good for 5000 miles but only 300 at a time due to concerns for the drive train which seems a little strange. I am going for it and hope to never need it. Thank you for the recommendation really appreciate it.

I just ordered my spare from Modern Spare. Shipping date is April 22. Hopefully it will never be needed.

[eliphil]

Mine was ordered last night…… also hoping for no usage

[nZtiZia]

Originally Posted by NGT2

My SA, who I like a lot, is ADAMANT that I not switch to non run flats. He swears he’s seen transfer cases go out within ten thousand miles of swapping. I challenged him that the same size and same tire on all four wheels shouldn’t make a difference and he swears it does. He also said that if it came with runflat and I switch, and there is an issue, the first thing BMW will do is ask about the tires and if they’re different than factory.

Any input with some info I can take back to challenge this further? He makes me apprehensive enough to just say screw it and stick with the run flats. I wish Michelin made the 19” size PS4 AS runflat to fit our cars, but it’s too wide. If I had 20” wheels, they’d have runflats to fit.

I went Pirelli last time and had one bubble (they covered it) and they’ve worn out in less than 20k miles. I know that’s partially on me. But I’m thinking about going with the Continentals this time. I don’t want to go back to the GY Eagle Sports.

what he said may hold true. depends on your dealership.

i'm also on the G05 forum, and there are several posts from folks saying warranty repairs/replacements on their tires/wheels were denied due to not being OEM from factory. one guy wanted to switch from OEM 21" to OEM 20" and all the area indy tire shops and his dealership told him they wouldn't even mount them even if he purchased them

[NGT2]

Originally Posted by nZtiZia

what he said may hold true. depends on your dealership.

i'm also on the G05 forum, and there are several posts from folks saying warranty repairs/replacements on their tires/wheels were denied due to not being OEM from factory. one guy wanted to switch from OEM 21" to OEM 20" and all the tire shops and his dealership told him they wouldn't even mount them

Gotcha. It seems there are constant posts about swapping tires and fairly regular posts about swapping wheels and never any posts about transfer cases blowing up.

[nZtiZia]

Originally Posted by NGT2

Gotcha. It seems there are constant posts about swapping tires and fairly regular posts about swapping wheels and never any posts about transfer cases blowing up.

well, let me clarify I meant you may face warranty claim issues with non-factory wheels/tires. some dealerships are picky like that. (fortunately mine isn’t.)

personally, I don’t see how a switch from RFTs to same-sized non-RFTs adversely affects the transfer case. they’re the same OEM size!

[NGT2]

Originally Posted by nZtiZia

well, let me clarify I meant you may face warranty claim issues with non-factory wheels/tires. some dealerships are picky like that. (fortunately mine isn’t.)

personally, I don’t see how a switch from RFTs to same-sized non-RFTs adversely affects the transfer case. they’re the same OEM size!

I don’t either. I just read a post from a guy that’s got two years and 36,000 miles on an M850. He didn’t just switch the tires but switched the wheels and tires to a wider size, front and back. And no problem. I just don’t see how switching to the same exact size as factory can make a difference. But he SWEARS he has seen transfer cases fail within thousands of miles of people swapping to non runflat tires. He didn’t even say they wouldn’t do it. He just strongly recommended not doing it. And when he referred to BMW not covering a claim it was more corporate and not at the dealer level, which I do believe. I just don’t see why it would cause an issue in the first place.

[jsf721]

Give me non run flats and a real size
Spare , with a good jack and tire iron and I’m a happy camper.

[Neusser]

Originally Posted by nZtiZia

well, let me clarify I meant you may face warranty claim issues with non-factory wheels/tires. some dealerships are picky like that. (fortunately mine isn’t.)

personally, I don’t see how a switch from RFTs to same-sized non-RFTs adversely affects the transfer case. they’re the same OEM size!

His information is highly suspect.

Over here when you order the car new, you have the option to have it delivered with run flat summer tires or non-RF summer tires.

As for non-factory tires, well this links into the "star" mark controversy. Aside from being more expensive, it seems they are potentially another reason BMW could deny you a claim if something breaks.

The magic of the star!

[ezaircon4jc]

Originally Posted by Neusser

His information is highly suspect.

Over here when you order the car new, you have the option to have it delivered with run flat summer tires or non-RF summer tires.

As for non-factory tires, well this links into the "star" mark controversy. Aside from being more expensive, it seems they are potentially another reason BMW could deny you a claim if something breaks.

The magic of the star!

They're not more expensive where I shop... unless I buy the tyres at the dealer.

[Joe-BMW33]

Originally Posted by Neusser

His information is highly suspect.

Over here when you order the car new, you have the option to have it delivered with run flat summer tires or non-RF summer tires.

As for non-factory tires, well this links into the "star" mark controversy. Aside from being more expensive, it seems they are potentially another reason BMW could deny you a claim if something breaks.

The magic of the star!

You’re such an asshole. For someone who actually does know a few things about these cars, you persist to spread false information out of spite as several of us have provided proof they aren’t more expensive. You carry zero credibility.

[adhrp]

I don't know about the whole star thing but on Tire Rack, neither the DWS06 nor the Michelin PS A/S seem to have the star mark (unless I missed it). I'm planning to replace my tires with DWS06 when the time comes and couldn't care less about the star mark. The BMW star marked tires on Tire Rack are not what I want and are much more expensive than the two options above seeing as they're both run flats (which I also don't want). I'll deal with any repercussions of that if/when it happens.

BTW, here too I've seen the option of configuring the car from factory with non-RFT tires so I'm a bit suspicious about what that dealership service advisor said.

[Neusser]

Originally Posted by adhrp

I don't know about the whole star thing but on Tire Rack, neither the DWS06 nor the Michelin PS A/S seem to have the star mark (unless I missed it). I'm planning to replace my tires with DWS06 when the time comes and couldn't care less about the star mark. The BMW star marked tires on Tire Rack are not what I want and are much more expensive than the two options above seeing as they're both run flats (which I also don't want). I'll deal with any repercussions of that if/when it happens.

BTW, here too I've seen the option of configuring the car from factory with non-RFT tires so I'm a bit suspicious about what that dealership service advisor said.

Yes, full-on M cars are shod with non-RF as standard, but RF are possible. On series cars, under the wheel-option selector, you can chose whatever you prefer.

The idea that one must run RF is rather silly, and I wonder where it got started.

[Benjamin_Nicholas]

Originally Posted by NGT2

My SA, who I like a lot, is ADAMANT that I not switch to non run flats. He swears he’s seen transfer cases go out within ten thousand miles of swapping

You can swear and still be dead wrong

Many SA's are good salespeople with questionable mechanic experience. I've learned with BMW to always read between the lines and take what the SA says with a grain of salt, especially when it comes to conjecture.

My brother is an M-certified master mechanic for BMW and he says this is complete and utter bullshit.

I'll take my chances on what bro says.

[adhrp]

Originally Posted by Neusser

Yes, full-on M cars are shod with non-RF as standard, but RF are possible. On series cars, under the wheel-option selector, you can chose whatever you prefer.

The idea that one must run RF is rather silly, and I wonder where it got started.

Ignorance is bliss... When I had my F30 I had no such information so I just switched to non-RFTs and enjoyed them with no issues for 10s of thousands of miles through 130k+ miles on the odo when I sold the car.

When you state that star marked tires are more expensive, do you mean they're more expensive for the exact same tire without the star or are you comparing them to non-RFTs, which would be cheaper anyway.

[NGT2]

Originally Posted by Benjamin_Nicholas

You can swear and still be dead wrong

Many SA's are good salespeople with questionable mechanic experience. I've learned with BMW to always read between the lines and take what the SA says with a grain of salt, especially when it comes to conjecture.

My brother is an M-certified master mechanic for BMW and he says this is complete and utter bullshit.

I'll take my chances on what bro says.

That’s good to know! Thank you!

[LogicalApex]

Originally Posted by Benjamin_Nicholas

You can swear and still be dead wrong

Many SA's are good salespeople with questionable mechanic experience. I've learned with BMW to always read between the lines and take what the SA says with a grain of salt, especially when it comes to conjecture.

My brother is an M-certified master mechanic for BMW and he says this is complete and utter bullshit.

I'll take my chances on what bro says.

I think the undercurrent of what the SA was saying is all about warranty claims. That BMW wouldn't cover a warranty repair for the transfer case (only xDrive models have a transfer case, of course) if they can point a finger at the tires.

I have seen that echoed on the forums a fair bit, but I'm running pure OEM so I can't claim to know how painful the process would be warranty wise. I do know I've had BMW be annoying on warranty claims at various points. BMW does seem to "push back" on claims at times.

Not everyone is worried about warranty repairs though so it may be a complete moot point. Others may have dealerships that insulate them from any flack from BMWNA.

YMMV.