300 SEL no spark
 

Hi all,

New to the club. I've got a problem with a Mercedes 300 SEL - its not firing/no spark. I have checked all the obvious any suggestions?

Thanks,
Aido

RE: 300 SEL no spark
 

Sorry to be a little more clear about my problem.

On the coil there is two pins no. 1 and no. 15 both of which are live. I'd expect one to be negative.

When I try and turn the engine over there is no spark coming from the HT leads.

Suggestions? Or where possible a wiring diagram ;)

Thanks.

RE: 300 SEL no spark
 

Nobody knows much on this site I can tell you that. I havea '67 250 S, and I have just changed over to electronic ignition from points. You don't say what year your car is, and I don't know if it's electronic or not; however ,there should be 12 volts going to the coil prior to starting, and after you turn the key8 volts. Could be a bad coil. Use a volt meter to check voltage. hope this helps some. Dave.