1995 C220 electric problems

[paschov]

My 1995 C220 engine starts and than stops immediately. It's still running only if I keep my foot on gas pedal. The fuse #23 in fuse box under the hood is blown. This fuse has marking "engine components" or something similar. I changed the fuse, try to start the engine and the fuse was blown again. Another thing, when the engine was idling, there was a kind of vacuum cleaner noise coming from the engine, and it lasted for couple of minutes. There is no noise anymore. Does anyone know what's the problem and what is connected to fuse #23. I just bought this car, it was running perfect, this problem started all of a sudden.
Thanks