My driver's side rear tyre loses pressure every so often, found it that way this morning after having driven over a fallen branch last night. When it happens, the tyre goes completely flat but then when I pump it up, it holds pressure fine. Last time it happened I was on the M4!

Question is - do you think it's the tyre or the wheel?

Must be a leak somewhere. Needs an inspection tho to find that small a leak

I'm wondering if it's the seal between the rim and the tyre? Kwik Fit checked it last time and found nothing, and an independent place checked it the time before that and they couldn't find anything either.

soap and water, put around 2,8 bar pressure in, then you can see if there is a leak, sometimes it can be the valve that has a bad sealing to the rim

Where abouts are you in bham Hoff?

Barnt Green, near the old Rover works in Longbridge. Where are you?

Erdington. I work in Aston and i know a few places that could check you tyre out but there over this way
If you call ATS-Redditch 01527 502 002, they should be able to sort you out.

Unless you need a new tyre then ask me

Thanks mate, I'll look into it this week and let you know.