again Normski and Zoran..I am so grateful you have both taken the time to help..extremely informative..my eyes are opening ( I am tempering it with knowledge there will be lots driving about without problems) I do not mind problems they are inevitable, the cost of the 220d problems are a concern though..If I had a good one would I sell it? No way..so why is the one I am looking at being sold ..I am a sceptic..thanks again people..very kind helpful stuff