Mercedes Benz repair: 1984 500SEC, fuel pump relay, 500sec

Question
Hi,the car was running bad and it was suggested a new fuel pump relay, I bought a new relay and now the car start and run well but it won't turn off with the key; to turned off I have to remove the fuel relay.Thank you, Ivan

Answer
Good Morning Ivan. You need to  make sure that the relay is the right one. Check  the numbers on it  and count  the pins on  the relay. Siince this was not a probllem  before installing the new relay, i  would  say it is  the wrong one.  Thanks and i hope this helps. Also try the old relay  and  see if the car will  cut   off.   If  it  does then check the relay.Thanks, Rick