Hello All, Please can anyone offer any advice or opinions for me with the following? I've just bought a 2005 C5 1.6 Hdi estate from a Citroen main dealer using their 'Citroen Approved' scheme. It's done 62,000 and I really like it. I do have some issues and a couple of problems though. Firstly, and most worryingly, when accelerating I'm getting a large cloud of greyish smoke from the exhaust (enough to make tailgaters back off), this is sometimes accompanied by a sort or lurching misfire from the engine which I can drive through by either backing off or pressing further down on the accelerator. I do know diesels smoke having owned a few but this is a properly dense cloud and appears with anything other than a 'pootle' about. The misfires seem to occur mostly when the car is hot. Any ideas what this might be? Secondly the drivers seat is shot, the support has nigh' on disappeared (the passenger seat is lovely and comfortable). I'm happy to change this myself and hope to get a replacement from someone on the forum, unless Citroen would change this? Lastly, the car has not come with either a handbook or a full service history, it was delivered to my house by the dealer and I had stupidly assumed it must have a FSH and handbook coming from a main dealer. A citroen service book was all that I got which has 2 stamps in it, one at 52,000 from a Nationwide Autos branch and the other from the service that the Citroen dealer did before selling me the car. Is this normal or do you think it should have come with a handbook and a full service history? I have contacted the selling dealer (only bought the car last week) but they have not replied to any questions about the handbook or the service history, I don't really want to take the car back as I do like it and unfortunatly the dealer is about 80 miles away. Fire away, Simon.