Hi there guys..I have recently purchased a non-runner 500se.Low mileage car with a rusty fuel tank.I had the tank repaired and coated,replaced the fuel pumps filter etc.When I first switched on the ignition I heard the pumps working and filling up.I then turned over the key and the engine turned over but did not start for longer than 2 seconds and then dies.If I pump the pedal it refuses to start...turning just the key it starts for a few seconds and dies?There is fuel getting to the mixer but I fear not enough?Should the pumps be heard every time you start the car?

Any help would be greatly appreciated...service and repair costs in Africa are very high and I am quite willing to do the work myself. I have had several Merc's but this is my first problem child..even my 65 fin-tail is flawless!

Try checking the injectors, cold start valve, fuel pressure regulator, and anything else related to fuel system. Also check the plugs after you try starting to make sure they are not wet with fuel.

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1990 190E 3.0L