Hey guys. I have an 89 560sl. Just a couple of days ago while sitting in traffic the engine cuts out like I turned the key off. It won't restart right away so I pushed it off the road and after about 5 minutes it started and ran fine for the rest of the day. Then yesterday morning I was letting it warm up in my drive way and it died again. This time I could not get it restarted until I got home from work. When the engine dies I till have power to all of my accesseries. And the engine will crank over fine just won't start. I feel like the problem is in the ignition system. Is there any common problems with these cars that I should check before diving in ?


Thanks,
Mike

 

clean the fuel pump relay located on the firewall.

 

I could not find any relays on the fire wall. I did find some above the fuse box on the passenger side lower a piller though. I have not had a lot of time to look at this problem but it seems to me that the problem is in the ignition. Maybe a coil over heating or a relay with high resistance. I have a Factory shop manual the is almost useless. Can anyone tell me where the Fuel injection relay and engine management relay is?

Thanks,
MIke

 

I found there was no spark so I replaced the coil. This seemed to work for 2 days. Now it is dead and there is no spark again. Is there an Ignitor in the distributor? Is there a crank posistion sensor? Where is it located?

thanks,
Mike

 

The crank posistion sensor only goes to the diagnostics port and there is no ignitor in the distributor.
What triggers the coil to fire? Where is it located?

Mike