I have a 1985 500 SEL euro spec with about 185,000 miles on it and I noticed that one of my fuel lines is begining to crack. It's the black rubber hose located right next to the air intake and leading up to the fuel manifold. No leaks currently, but my mechanic told me that I should look into getting it replaced soon. The only issue is that he says you cannot get those lines anymore, and that it would have to be a custom job. Just wanted to know if anyone here has had any experience replacing this line and if there are any parts out there.