190E Starting Problem
 

I have a 91 Mercedes 190E THe problem is that the car will start for like 3 senconds then shut it self off. It seems to do it only at night when its colder once its warmer in the day the car will start and run just fine. I have changed the spark plugs fuel filter and distributor. I tried one night for an hour to start it and it would just run for like 3 or 4 seconds then die but when I went in the morning to start it it started right up and drove fine. Any help would be greatly appreciated.
Jonathan Harris

I would check the fuel pump relay, or the pump itself.

Steve