What are the colors of your spark plugs?

When was the last time a tune up was done on the car?

To see if there is spark pull the plug and wire and ground it too metal so you dont get shocked. You will need someone to crank the car for you.

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)