The suspension on my 96 P reg Rover 114GTA has depressurised on the driver side. Its done this a couple of times since I bought it (from new), and I've simply had it pumped back up at the local garage. However this time when they pumped the fluid in, it simply leaked out again around the front tire. The chap that did the work said that it was likely the hydragas displacer that had gone and would need replacing at a cost of about UKP200-300, although he didn't sound very confident about his diagnosis (it was a tyres and exhaust garage).
I cant afford this and I don't know much about cars so I was wondering if anyone could tell me how I could check this out for myself because a friend has told me that it might just be the connecting pipe that has come lose or punctured. In either case is this a problem for the garage, or is it something myself and farther-in-law could fix (he knows a bit more about cars and is a hands-on kind of guy)!
TIA
Colin