Hi, My newly aquired Z4 was designed to operate on run flats, it has normal tyres on now but no spare wheel. Will a space saver from another car fit or I could use spray foam sealer, any suggestions?
spare wheel
- Thread starter Olliebeak
- Start date
You can run a space saver but it’ll have to live in the boot, unless you buy a boot rack. Tyre foam will only work on a run flat unless it’s a tiny pinprick puncture.
Tony.
Tony.
This is another option. Not used it but have started carrying in my Smart that has a tyre inflator. https://www.eurocarparts.com/p/benson-car-tyre-repair-set-27pc-553991400
Just to be clear, tyre foam will work on any tyre or just run flats which seem a bit odd since run flats as the name suggests are designed to 'run flat'.
- Joined
- Feb 18, 2016
- Points
- 221
- Model of Z
- Z3M Imola and Z4 (e89)
Get a turd kit and a small compressor and keep them in the boot, fixed loads of punctures for people with this kit easy to use, puncture fixed in no time so you can complete a journey and get to a tyre shop.
Obviously wont work on major blow outs or serious damage.
Obviously wont work on major blow outs or serious damage.
The idea with runflat tyres is that the extra stiff sidewall supports the vehicle, you don't get that with normal tyres. That's what I meant saying it only works in runflat tyres. You struggle to get enough pressure, quick enough with those small aerosols, to plug the leak and inflate the tyre. Try it.
Tony.
And you position the valve at the top, but they still struggle to inflate a tyre with much more than a pinprick. And that's if you can get a jack under it with the flat tyre.
Tony.
Tony.
AA RAC Anybody? Excuse to stay out for the night 
- Joined
- Dec 3, 2018
- Points
- 69
- Location
- The English Riviera - Torquay
- Model of Z
- 2.2 sport Individual Estoril
I use some stuff called Puncturesafe, You put it in your tyres before getting a puncture, it just 'heals up' if you get a hole, allegedly up to 6mm.
When SWMBO had the rear tyres changed, there were 2 nails in one, and a screw in the other, so it must work.
When SWMBO had the rear tyres changed, there were 2 nails in one, and a screw in the other, so it must work.
- Joined
- Feb 18, 2016
- Points
- 221
- Model of Z
- Z3M Imola and Z4 (e89)
It does we use it in our company vehicles. Its a permanent version of tyre slime. Only issue is tyre shops don't usually repair tyres that have it added
They used it on lawnmower tyres etc. at Tanvics and as Niall says once used they won't touch tyres. Good on bike tyres too if you tend to ride where there are Hawthorne hedges.
Tony.
Tony.
Thanks for all your replies and information. I asked the question because I have had to replace two tyres recently on my daily driver due to the terrible road conditions.
- Joined
- Feb 18, 2016
- Points
- 221
- Model of Z
- Z3M Imola and Z4 (e89)
Yep bought tubes for the bikes with it already in
That's worth knowing Niall, I didn't know you could. Thank you.
Tony.
Tony.
- Joined
- Dec 3, 2018
- Points
- 69
- Location
- The English Riviera - Torquay
- Model of Z
- 2.2 sport Individual Estoril
Tyre fitters won't work on the 'slime' type stuff, but the Puncturesafe is a water based polymer, so it just rinses out, and rinses off rims, also it has anti corrosion stuff in it to prevent the rim furring up. As it repairs the punctures without me knowing, I haven't needed to get them repaired.
P.S. I am not affiliated to this company in any way.
P.S. I am not affiliated to this company in any way.
Run flats don’t go flat, the extra strength in the sidewalls keep them up without any pressure in them. Hence you need a warning system to advise on deflation. I bought a repai system off the bay it has a 12v pump with attachments to go connect the bottle of sealant it goes in through the valve . And keep it in the boot of my Z3 .