Hello All, I'm a new boy, not just to landyzone but also this chat forum malarky..... any way to the crunch. I have a 99 Disco TD5 ES with the airsuspension, ACE etc and until early December 06 all was relatively good with the girl. I had recently had car into a reputable non franchised garage and had had exhaust manifold gasket replaced and then gearbox (auto) oil replaced (incidently went like a bomb after that!) Anyway a couple of weeks later I noticed the rear drivers side looking a little low. Thought it was the old eyes...... then she started to settle on rear drivers side down to the end stops - unusually though, it was an intermittent thing with up to a couple of days off and then back to regular over night. Thought it might have been outside temp dependant util today when it dropped in side 3 hours. Anybody give us a clue. Intermittent seems to eliminate air sac... no expert but do have a practical background so willing to tackle with help from forum....thanks Shauny Mc confooosed of Norfolk