i bought a 750il from an donation auction ( not running) i spoke to the previous owner who said it ran fine, it has no spark. i suspect someone may have pulled a relay or fuse or something . on the driverside there is a relay missing i was hoping somone may know what controls the spark to the coil relay fuse? where which one. any help appreciated.

the car is a 1990 v12 no spark out of either distributor

Try asking the question here

http://bimmer.roadfly.org/bmw/forums/e32/

There are several V12 regulars there