Hi Guys, I am near the end of my rope. Bought the car in Oct. as a non runner, the guy I bought it from was a mechanic who had tried to get it running with no luck (it had been sitting for about 10 years) he had drained and replaced the fuel, changed fuel pump and filter. When I got it, it would run only by spraying starting fluid in the fuel distributor. I suspected the fuel distributor, I bought a rebuilt kit took it apart did not find anything obliviously wrong put it back together and the car ran very well for about an hour, then started to splutter and died, if I remover the distributor from the car and replaced it, it did the same thing ran well for a short time then died. I decided to have it professionally rebuilt, this guy also did not find anything wrong with it, but when I reinstalled same thing again, then I turned my attention to the WUR checked incoming voltage disassembled and checked ohm rating cleaned and reassembled again ran great for about a half hour then spluttered to a stop, while I was working on the WUR I noticed one of the ballast resistors was cracked so I took a brake from the fuel and went to work on the ignition new cap, wires, plugs, and two ballast resistors (waiting for a new rotor) again started up and ran so well for about an hour I decided to take it to the gas station broke down after about 2 miles. I was able to get back home by letting it sit for 1-2 minutes then it would run 3-4 hundred yards. I did buy a CIS test kit, control pressure between WUR and top of Distributor is 3.6 bar, fuel pressure to Distributor from pump is about 6.5 bar. my VIN # is116 033 12 070243 the WUR #is 0438140010 The StarTek site does not support Mac. so I will have to join at work. What are the small blue soft cover tech manuals? do you mean the Mercedes workshop manuals?. PS I am a mechanic with about 30 years experience but not familiar with this system, So any and all help is greatly appreciated, and yes I know I repeated some stuff from early posts, But I had to vent a little. I still love the car and know it is just a matter of time.