Hey guys, my 85' 735i won't start. Turns over but won't catch. The local garage, thinks it might be the Motronic control. However, they aren't willing to invest money in testing it ( I guess this means buying one and tryng it out.) Haven't tried the dealer yet, they are 15 miles away. Anyway if ya'll have any suggestions, or know where how to test it at a reasonable expense. Many thanks,