Run Flat Tyres & Dash Indicator and standard wheels?
I have looked in the forums for an answer to my questions but i can't find anything so apologies if this has been answered before!
I have been reading up on changing my run flats to standard tyres - due to the fact I currently have 17" rims and run flats on a 54 plate mini convertible and the car shakes when go over bumps and pot holes and it can also pull to the left and right which i find quite dangerous! They are also expensive to replace plus i seem to have a 'leak' from where the tyre meets the rim as i keep losing pressure in one of the wheels. I do not have a puncture though and have to keep checking the pressure every week.
If i change my run flats to standard tyres then does it affect the dash indicator and on board system for the run flats in any way? e.g. light stays on, or it comes on even though i dont have run flats or does it damage the system?
Also, i have heard that run flat tyres also have 'run flat rims' and that you cant put standard tyres on this rims. Is this true or would i have to get a new set of rims?
not sure about the dash indicator but changing tires and holding the OE tire diameter should be acceptable. look at the tire rack for info on diameters etc, you can also do a minus one setup, a smaller 16" diameter wheel with a higher profile tire to equal OE diameter. this will give a better ride and less likely to damage rim in a pothole, theres much info on their site as well as others, take some time to search-read-learn!!!
It sounds like you have a leak in the tyre bead seat - between the tyre and the wheel, where they meet. A good tyre fitter can seal that joint to stop a leak - the tyre has to come off to do it, but we're talking a total of under £20 for one wheel.
If the problem is that your alloy wheels are now getting old and starting to corrode, you might start having this problem on all your wheels, even when new tyres are fitted. So make sure the tyre fitter knows about this and has a plan to deal with it. It does not affect the runflat/non-runflat issue in any way.
The long term answer, like in the next year or two, if it is corroding alloys that is the problem, is to get the wheels refinished. That's likely to be in the region of £50 per wheel, but of course you do then also get wheels that look 'as new'.
You need to ask around your mates for a decent tyre shop. It will probably be an independent or small local chain, as most of the big boys are ***** at best and crooks at worst. There will be somewhere good and it's worth finding them.
You should have no problem switching to non-runflat tyres on standard 17" rims. The tyre pressure monitor system works just the same with either tyre, you just need to reset it (instructions in Handbook) after the tyres are changed or if you have had to re-inflat one that has gone very flat.
The advice given about possibly refurbishing your rims is sound. I recently swapped to non-runflats but had the rims refurbished first.......only to discover that all four rims were slightly buckled (I bought them secondhand); it's possible that your wheel that keeps loosing air is slightly buckled.
Also, don't be fightened to purchase non-premium brand tyres, some of the cheaper brands have very good ratings from the new tyre labelling scheme and perform just as well (if not better) than some of the Premium Brands. A good independant tyre fitting business should be able to offer you recommendations based on heir customers real world experiences. Also, there are plenty of tyre recommendations on this forum.
Thanks for all your answers guys! Useful information
Spike, I didn't think about my rim possibly being
Buckled, it is the front passenger side one which I know a lot of catch. The previous owner could have done it I know I haven't caught the rim on anything so I will have to get that checked out
Yes, of the four wheels I had refurbished (powder-coated in gloss black by the way!) only one had any obvious signs of corrosion or damage to the rim, the other three looked as good as new but of course they were standard silver colour.
However, when the refurbishers checked they were all buckled to some extent, and I had to pay extra to have each one straightened!
Mind you, it was worth it, because when the tyre fitters put on the new tyres they said that they had never seen a set of wheels & tyres that were so in balance and they needed very little in the way of balancing weights to be added.
The refurbishers I used were My Alloys at Basingstoke. They did a brilliant job and the wheels look fantastic.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.