loosing tyre pressure

[Rollsey]

Hello all,

My Golf GTI Edition 30 keeps loosing tyre pressure in the offside front and I am at a loss to know why. It has had this problem since I bought it 18 months ago. First I thought it was a leaky valve so had that replaced, it still lost around 1.5 bar of pressure roughly every 30 days. I then had the tyre replaced with a Michelin pilot sport still the same problem. The wheel looks fine although it has been curbed a few times. One thing I did take note of was when the lad was repalcing my tyre and had the wheel on the balancing machine he told me that it had a slight buckle, it's not noticable when looking at it and the wheel has no dents in the rim like i said its just got some minor scrapes from curb grinding. Has anyone had the same problem? or do you have any thoughts on what could be going on?

[itavaltalainen]

Did he replace the valve again with new tyre?

If yes, then I'd guess the wheel is fecked.

[Rollsey]

Yes the Valve was replaced. There is no visual evidence of damage i.e dents in the rim for the resulting loss of pressure. I was going to get the wheel refurbed but with there only being the usual curb scrapes on it it seems hard to pinpoint the problem

[chrismc]

If the valve is ok then the tyre can't be sealing properly against the rim or there is some kind of defect/porosity with the wheel.

If it's already damaged/kerbed I'd try to find a replacement off a breaker😉