Since you replaced the rubber lines, you'll probably be good to go for a good while. It looks like you used new hose clamps as well which is a good idea. I got burned on my SDL reusing the original clamps and had air leaks, finally resolved by replacing the factory clamps with worm-style clamps.

__________________
Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]