Renault got in touch with me this afternoon, the problem I.m afraid has been self inflicted!! When putting the front subframe back on the car some wires have got stuck between the chassis and the subframe and when we have tighten everything up the wires have been nipped!! I.m raging we completey forgot to look for something like that, we all live and learn!! Renault are charging me £200 all in for the diagnostic and the repair of the wires, they have to nearly remove the subframe again. Was gonna get the car and do it myself but cant be bothered to get a trailer and lift the car, so might aswell get them to do it when the car is there!! Still it worked out cheaper than letting renault fit the manifold in the first place by £200, so its not that bad, would have been nicer having the full £400 saving though. Still its a mistake I.ll never make again!..........well hopefully!!!!! lol