Many Thanks for the replies. The injector cylinder no.4 is covered so that's something. The other things: Cat Converter leaking gas, Diaphram split - intake manifold, Gearbox sump leaking. Is it vital I get these other things done asap? or can I pick one off a month, would it be safe to drive? Tricky situation, I didn't buy it from an official jaguar garage, bought it from a very small dealership in north London. Not sure I have a leg to stand on as it was absolutely fine for 3k miles. Happy to go down legal route though if anyone thinks it's worth it. If I went down to place I bought it I'm sure they'd just laugh if I asked for my money back.