MINI2

BRG/Blk Cooper S · Nov 25th, 2006, 06:19 PM

Hi all,
Recently had 4 new Pirelli Runflats fitted to my Cooper - 17" S-Spokes 45/205 tyres.
This is the first time the car has had tyres since new.

Previously, although checking the pressures cold twice a week, I rarely had to put any air in the tyres.
Now on my passenger front tyre it seems to be losing around 6 - 8 PSI over the course of a week, the driver’s front around 3 - 4 PSI and the rears are like before rarely needing a top up.

Could faulty valves be causing this?
Is it a case of returning to the tyre fitter and asking them to rectify the problem?

Thanks, Geoff.

wheyaye2 · Nov 25th, 2006, 08:44 PM

It could be that the tyre fitter hasn't applied enough grease whilst fitting the tyre or you might have a little corrosion on the inside of the alloy meaning there's uneven contact between the tyre and the wheel itself.

I've had this problem several times with my S-Spokes...

Either way, I'd return to the garage and ask him to refit the tyre explaining the circumstances. At the same time ask if he'd check for corrosion...

MickCooperS · Nov 29th, 2006, 12:25 PM

Quote: Originally Posted by drainaudio (original)

Hi all,
Recently had 4 new Pirelli Runflats fitted to my Cooper - 17" S-Spokes 45/205 tyres.
This is the first time the car has had tyres since new.

Previously, although checking the pressures cold twice a week, I rarely had to put any air in the tyres.
Now on my passenger front tyre it seems to be losing around 6 - 8 PSI over the course of a week, the driver’s front around 3 - 4 PSI and the rears are like before rarely needing a top up.

Could faulty valves be causing this?
Is it a case of returning to the tyre fitter and asking them to rectify the problem?

Thanks, Geoff.

I had the exact same problem a while back- my new tyres were losing air where the wheel rim edge meets the tyre. The problem is because the runflats are less flexible on the side wall and due to this can result in a poor seal. I went back to the tyre place and they poured 'sudsy' water (very technical!

) on the wheels and we could see a tiny froth of bubbles appearing at the edge. They just took the tyres off and put them back on with some sealant and they were fine after that! Good luck!!

GR33NIE · Nov 29th, 2006, 12:46 PM

Ive got the same problem in one of my front tyres! Looks like I might have the answer now cheers

Nov 25th, 2006, 06:19 PM	#1
BRG/Blk Cooper S w' all the toys.. Join Date: Dec 2005 Location: United Kingdom Local Time: 07:53 PM Posts: 602 Offline	Tyre fitter responsible for slow leak? Hi all, Recently had 4 new Pirelli Runflats fitted to my Cooper - 17" S-Spokes 45/205 tyres. This is the first time the car has had tyres since new. Previously, although checking the pressures cold twice a week, I rarely had to put any air in the tyres. Now on my passenger front tyre it seems to be losing around 6 - 8 PSI over the course of a week, the driver’s front around 3 - 4 PSI and the rears are like before rarely needing a top up. Could faulty valves be causing this? Is it a case of returning to the tyre fitter and asking them to rectify the problem? Thanks, Geoff.

Nov 29th, 2006, 12:46 PM	#4 (permalink)
GR33NIE Polo GT Owner! Join Date: Aug 2004 Location: MacRumours Local Time: 07:53 PM Posts: 3,849 Offline	Ive got the same problem in one of my front tyres! Looks like I might have the answer now cheers ::MINI Sold! Polo GT Owner::

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Nov 25th, 2006, 08:44 PM	#2 (permalink)
wheyaye2 On a MINI adventure My Classifieds Join Date: Nov 2005 Location: Sabinillas, España Local Time: 06:53 PM Posts: 265 Offline	It could be that the tyre fitter hasn't applied enough grease whilst fitting the tyre or you might have a little corrosion on the inside of the alloy meaning there's uneven contact between the tyre and the wheel itself. I've had this problem several times with my S-Spokes... Either way, I'd return to the garage and ask him to refit the tyre explaining the circumstances. At the same time ask if he'd check for corrosion...

Nov 29th, 2006, 12:25 PM	#3 (permalink)
MickCooperS MINI2 Regular Join Date: Feb 2006 Local Time: 07:53 PM Posts: 170 Offline	Quote: Originally Posted by drainaudio (original) Hi all, Recently had 4 new Pirelli Runflats fitted to my Cooper - 17" S-Spokes 45/205 tyres. This is the first time the car has had tyres since new. Previously, although checking the pressures cold twice a week, I rarely had to put any air in the tyres. Now on my passenger front tyre it seems to be losing around 6 - 8 PSI over the course of a week, the driver’s front around 3 - 4 PSI and the rears are like before rarely needing a top up. Could faulty valves be causing this? Is it a case of returning to the tyre fitter and asking them to rectify the problem? Thanks, Geoff. I had the exact same problem a while back- my new tyres were losing air where the wheel rim edge meets the tyre. The problem is because the runflats are less flexible on the side wall and due to this can result in a poor seal. I went back to the tyre place and they poured 'sudsy' water (very technical! ) on the wheels and we could see a tiny froth of bubbles appearing at the edge. They just took the tyres off and put them back on with some sealant and they were fine after that! Good luck!!

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