Is the 1980 450SEL CIS injected?
Does this model require resistor equiped plugs?
Any suggestion on good plugs?
I am having problems with this car not giving a spark and considered replacing the coil as I believe this may be the problem. I have tested with a screwdriver at the plugs and I see no arcing from the ignition system. I have removed the cap from the distributor and it looks to be in good condition, no deposits on the points/blade. Are there any other tests I can run to isolate the problem? Help is greatly apreciated.