I have completely rebuilt my vac system, diaphrams, hoses, master element, pump etc. My tank holds pressure (15 in) for days. My locks work but seem to take a long time to engage/disengage, over a minute. Is this normal for my model or should I be looking at somthing else? Thanks

Steve019,

My 1975 240D had a similar locking system, and even when it leaked severely the locks would cylcle the little pull knobs at each door in less than 10 seconds. Sounds like you have some clogged lines or a leak in the door lock system. The hard tubing that goes through the door jambs was a spot on my car when it aged. The tubing would crack from getting old and being flexed a little every time the door opened or closed. Hope this helps, Jim

__________________
Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)

Steve, Time your locks and tell us how long it took,,, I expect that it is like boiling water,,, when you are standing there looking at them,,, and thinking about all the " how to fix your vacuum lines" threads on this forum that 10 seconds will feel like an eternity....when in fact there is nothing wrong... Remember you don't want it to snap those locks down and sound like some cheap small car... you want a dignified movement of the locking pins.... Greg