I have a problem whit my car (e36 316 coupe 1997).....it seams that after a big rain my engine computer got wet.....it's 2 day's since than and my engine refuze to start......it's like it has no spark..........so somebody can tell me how to take that computer off the car to clean it????(i don't know where it is exactly and how to desamble it whitout damage anthing.....Thanks