C230 Kompressor check engine light / vacuum leak?

[Mike R.]

Hello,

I own an '04 C230 Kompressor with 50k Km.

The check engine light repeatedly lights up and the suspected cause is a vacuum leak somewhere in the fuel system.

I get it taken care of and the first tank of gas I get, it relights.

It is in the dealer for the third time for this.

Has anyone experienced this, and if so, what was the fix?

Thanks in advance.