Nice write up. I'm about to do this on my 560SL and plan to take the whole pump/filter unit off the car and move to the work bench to replace all the copper sealing washers, hose clamps, filter, etc. I also want to see if the rubber hoses are old and brittle. If they are, I'm going to replace them too.

Here's a tip I got about priming the system before firing it up - cycle the pump twice before cranking the engine. That is, key
on (key position 2, listen for pump to cycle), key off, key on (listen for
pump again), key off, now crank to start engine. Makes it a little easier
on cranking system. Also gives you an early heads up if there's a fuel
leak.

__________________
Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 227,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 28,500 miles
'14 Smart electric cabriolet 28,500 miles
'15 Smart electric coupe 28,000 miles