I did this to my car (OM603.960), prior owner used zip ties and wire to hold hard lines in place.

The clips and pads are not exactly easy to install because they grab so tightly.

But once you do this you will be able to remove the line sets (1-3 and 4-6) as a unit if necessary.

Here are the parts for a 603 (h/t whunter)
Fuel Line Bracket 601-078-20-41-MBZ 2
Fuel Line Bracket 603-078-01-41-MBZ 6
Fuel Line Bracket 601-078-26-41-MBZ 4
Fuel Line Shim 601-078-04-86-MBZ 12

Here is a thread that has pics showing how to mount the clamps. Yes it says glow plugs but the subject came up in the thread.

http://www.peachparts.com/shopforum/diesel-discussion/326478-glow-plugs.html#post3021080
The rubber pieces go between the hard line and the steel brackets. In some of the locations the pad needs to be trimmed to fit.

__________________
The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech