I don't want to come to Stockbridge, but you can tow the car to my shop and I personally will work on it. I am the shop foreman. e-mail me at firstname.lastname@example.org and I will give you the # and directions if needed. PS I have seen the ignition coil act up like this. It shows fire, but when under compression, it will not fire.
1981 280GE SWB
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM