One more idea. Do you have a shop vac? As long as your flush chemical isn't flammable, I suppose you could put a couple inches of water in the bottom of the shop vac (to serve as a trap) and use it to "suck" out the pipes. Just use your hand to make a seal between the pipes and the vac hose. Just a thought...

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08 W251 R350
97 W210 E320
91 W124 300E
86 W126 560SEL
85 W126 380SE Silver
85 W126 380SE Cranberry
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