I own a Mercedes Benz 280E 1972, it doesn’t currently start and I’ve been told countless times that it’s the started motor. The only issue is I can hear the starter motor going off it’s just the engine doesn’t run, I think it’s an issue with the fuel.

I’ve replaced the leads, spark plugs and fuel pump and have ruled it down to either

  • the starter motor
  • the fuel and air filters
  • the fuel injectors
  • or the timing chain

Was there anything that could be added or ruled out as I’ve got close to no clue what I’m doing. I have the owners workshop manual for the Mercedes Benz and have just been working off that and doing basic diagnostics.