[MarkG_M5Comp]

Originally Posted by Brigand

How does BMW assist deal with punctures when using non run flats?

I read something either in the manual or BMW Assist info. that said they would be happy to give assistance ovet the phone to explain how to use the mobility kit.

That said, I can't imaginr they would refuse to come out if you pressed them - it's all the same if its a blowout, rendering the kit useless.

[davethefish]

looking forward to ditching the runflats putting standard tyres on my car soon

with my old E90 that had standard tyres i carried a 12v compessor and 'SOS' tyre kit that uses water based sealant so the tyre can be washed out and repaired, unlike most other tyres sealants that render the tyre usless.

[Tengocity]

Originally Posted by davethefish

looking forward to ditching the runflats putting standard tyres on my car soon

with my old E90 that had standard tyres i carried a 12v compessor and 'SOS' tyre kit that uses water based sealant so the tyre can be washed out and repaired, unlike most other tyres sealants that render the tyre usless.

Seems like a sensible idea, though as I have tyre insurance I'm always going to use that option should a puncture arise!

[teaston]

Originally Posted by Tengocity

Ah right I get you now and completely agree. I'd understand if they made it an option as per the mini.

My rears need changing soon but pretty sure I can't change to non RFT's as the lease company will not be happy!

Although, I could keep the RFT's in the garage and re fit them before returning the car! Hmmmm!

[teaston]

Which tyres did you get @Tengocity ? (Make, model and load rating)

[Tengocity]

Originally Posted by teaston

Which tyres did you get @Tengocity ? (Make, model and load rating)

Or buy some second hand ones to put back on before it goes back.

I have Michelin Pilot Super sports. I think there is only one load rating that's the right size for the 403Ms
225/40/19 on front and 255/35/19 on rears.

I love these tyres, best I've ever used in all my years driving. Same as used on the M135/235 and Alpina 3s.

[dopper99]

Originally Posted by Brigand

How does BMW assist deal with punctures when using non run flats?

Can you see BMW assist saying "you got non run flats but on a non M car so we're not going to help you"? I think not!

[....,,,,..,,..]

Originally Posted by dopper99

Can you see BMW assist saying "you got non run flats but on a non M car so we're not going to help you"? I think not!

Lol I can imagine some officious sod doing it lol.

Admittedly I still have my RAC membership.

[Buster Blue]

Originally Posted by dopper99

That absolutely depends on your own company so give them a ring first. When I changed to non run flats on my old E90 I contacted Direct Line and they noted it but were not fussed. But other insurance companies may be different - best to check.

Thanks for that will call them as I'm also with direct line, cant see it will alter but wish their conformation first.

[teaston]

Originally Posted by Tengocity

Or buy some second hand ones to put back on before it goes back.

I have Michelin Pilot Super sports. I think there is only one load rating that's the right size for the 403Ms
225/40/19 on front and 255/35/19 on rears.

I love these tyres, best I've ever used in all my years driving. Same as used on the M135/235 and Alpina 3s.

Holy cow they're cheap! £70 less for rear pair than Potenza RFT's! £160 each from tyre leader!

Think I'll get them in spring!

[Tengocity]

Originally Posted by teaston

Holy cow they're cheap! £70 less for rear pair than Potenza RFT's! £160 each from tyre leader!

Think I'll get them in spring!

Another advantage of ditching runflats!

[teaston]

Originally Posted by Tengocity

Another advantage of ditching runflats!

Yep you've really got me thinking about this now! The fronts are £165 each for some reason though!

I'll be putting my non RFT winters on soon so I'll get to try them for a while before taking the plunge on non RFT summers.

[Tengocity]

Originally Posted by teaston

Yep you've really got me thinking about this now! The fronts are 165 each for some reason though!

I'll be putting my non RFT winters on soon so I'll get to try them for a while before taking the plunge on non RFT summers.

Yes I noticed that and asked at a few places why that was and all they can suggest is that the rears are made in bigger volumes than fronts such that manufacturing costs are lower despite them being bigger tyres. Makes sense if you consider that folk will go through about twice as many rears as fronts on performance RWD cars. Doesn't make any sense from a commercial perspective though, just seems like lost margin on the rears!

[teaston]

Originally Posted by Tengocity

Yes I noticed that and asked at a few places why that was and all they can suggest is that the rears are made in bigger volumes than fronts such that manufacturing costs are lower despite them being bigger tyres. Makes sense if you consider that folk will go through about twice as many rears as fronts on performance RWD cars. Doesn't make any sense from a commercial perspective though, just seems like lost margin on the rears!

Still £700 inc fitting for a full set of four of the best 19" tyres available is bloody good! My 18" winters cost more than that!!

[M4_MLT]

The tyre guy called me that my michelin PSS arrived. I cant wait to go next week and ditch away my runflats on my 435i will post as soon as done

[teaston]

Originally Posted by Tengocity

Or buy some second hand ones to put back on before it goes back.

I have Michelin Pilot Super sports. I think there is only one load rating that's the right size for the 403Ms
225/40/19 on front and 255/35/19 on rears.

I love these tyres, best I've ever used in all my years driving. Same as used on the M135/235 and Alpina 3s.

I've been looking at these and have found the correct 92Y rears which are (*) marked (i guess the fronts for M3/4) but no (*) marked fronts, just XL 96Y's, we only need 89Y's.

Which load rating fronts and rear did you get & are they star marked Tengocity ?

[pmgreenwood]

Originally Posted by JD6

Excellent news. Sounds like a very worthwhile mod, and effectively free.

Not free if you have a puncture ona bend ona wet and windy night.

Not free if if you have a blow out

Having parents who had a blowout in a Golf on what is now the A14 anfd the Golf rolled, moving away from runflats is the one change I am never going to make

[Tengocity]

Originally Posted by teaston

I've been looking at these and have found the correct 92Y rears which are (*) marked (i guess the fronts for M3/4) but no (*) marked fronts, just XL 96Y's, we only need 89Y's.

Which load rating fronts and rear did you get & are they star marked Tengocity ?

Holy thread resurrection Batman!

Ok quickly checked them in the garage this morning on the way out...

Rears are 96Y extra load

Fronts are 93Y extra load

They are not star marked. Not sure any non-runflats would be for the F3x cars?

[Tengocity]

Originally Posted by pmgreenwood

Not free if you have a puncture ona bend ona wet and windy night.

Not free if if you have a blow out

Having parents who had a blowout in a Golf on what is now the A14 anfd the Golf rolled, moving away from runflats is the one change I am never going to make

Well they weren't free, but the cost to change was about the price of two tyres, which give me better ride and handling all the time.

Melodrama aside, everyone needs to make their own decisions on these matters, and I'm not going to say anyone is right or wrong. I doubt many specced the Active Safety package or whatever it is called, even though I expect for many people it would have a better chance of saving them from having a serious accident more often than runflat tyres ever would, but are they wrong for that?

There are many things we can all do in life that may reduce some incredibly small risk of something bad happening, but if it comes with a downside then it's a personal decision.

[teaston]

Originally Posted by Tengocity

Holy thread resurrection Batman!

Ok quickly checked them in the garage this morning on the way out...

Rears are 96Y extra load

Fronts are 93Y extra load

They are not star marked. Not sure any non-runflats would be for the F3x cars?

Lol, i was going to PM you but thought might as well ask in this thread!

What pressures do you run them at, as being XL they should have higher pressures i believe?

And as i say there are star marked 225's which i guess are for the front of the M3/4, and they appear to have a slightly different tread pattern, at least acoording to tyreleaders product photo!

first pic is non star, 2nd pic is star marked.

[Tengocity]

I can't remember what pressures, but just as per the door card for my car, but if I recall correctly from other threads the 335d tourer has different pressures to pretty much everything else!

[GBR1]

The star marked one I think can be used on a Porsche, Porsche have some weird thing where you can only use certain tyres!

Certainly the tread pattern on the right looked like my Porsche tyres!

GBR1