I would like to remain waiting thank you. I would add that I have also replaced the fuel filter and there is no problem with the pump.
Thanks for the advice Matt. I have the correct fuel pressure and the injectors are all working. At the fist attempt to start the car it fired once and then nothing.I removed the plugs and they were soaked with petrol.Prior to me changing the fuel distributor the mercedes dealer had told me that they had adjusted the fueling as much as they could and that a new distributor would be required.Could it be that the fueling needs resetting professionally with the new distributor or should it not matter.
Thanks again car now fires but wont start. I will change the warm up regulator and hopefully it will start.
I have received an e mail from just answer to say I have asked for a refund.this is not the case as I am very pleased with the information you have given.If you have a problem getting your money get them to contact me and i will confirm.
Thanks Geoff Ellis.
P.S.Terrible with computers.