I changed the fuel filters on my 1980 240D this weekend & shot video of it for a tutorial I did on how to get an old diesel Merc ready to use Biodiesel (I run a Biodiesel supply company that I make tutorials for occasionally--part of the reason I picked up the 240D).
Anyway, thought I'd share the video.
How To Get A Diesel Ready For Biodiesel - Mercedes 240D - Utah Biodiesel Supply - YouTube
I also shot some video of doing the valve adjustment too on it (it sure helped it idle smoother when I was done!). Wasn't the greatest video, but if I decide to throw it up on YouTube I'll share it here too.