Went to start my 86 635 (90,000) and got a really loud type sound from under the hood,inside the car it sounded like a machine gun.I had been doing the infamous brake booster o ring replacement so there were various liquids on the engine.It sounded like the weak click you get with a dead battery but mine was very loud and fast as my battery is good.Sound is coming from solenoid area which seems to have a rubber cover on it.
Anybody know what's going on?

I'm

PS:
When I first got in the car I noticed I had lost my radio stations and the on board computer, very puzzling.

Any help would .....help.

Many thanks,
Jim