Hello, My wifes 88 300 sel is not running right. Sometimes you go out and the benz just starts sweet and runs normal, then you go run an errand and get back in the car to have it take 4-5 times before it starts then it may die or run a little till you stop then stall. Recently replaced plugs, looked at distributor cap, worn but not wasted. Cleaned cap and put back together. now it doesn't want to run without me pressing on the pedal, let off and it dies.
Any ideas.
Please help.