Hello Gentlemen! Few quick questions for you all... I'm trying to replacing the leaking rubber air guide housing on my 1992 190E 2.6.

1. Before disconnecting all the fuel lines, do I need to relieve fuel system pressure?

2. Because I'll be removing all the fuel lines from the fuel distributor, when I hook everything back up, am I going to have to re-adjust the fuel or air mixture?

Thanks!