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Old 12-07-2009, 12:57 AM
JHZR2's Avatar
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Join Date: Jan 2002
Location: New Jersey
Posts: 4,029
fixing vacuum runs


My main vac line has one nipple broken off. It currently is set up like this:

My question is, since I havent had a 300 turbo for a while... what is correct?

Do all turbos have this five-connector unit like mine shows?

Also, after shutoff, I get a slight vibration and a sucking noise through the blue/black device shown above, which ultimately feeds the light blue line. I assume light blue is for the seats, as I do not recall that color line in my sedans. Question is, if I am getting a suction noise and a slight vibration in that part, does it mean that the part needs replacement, or is this something else related to the user of the blue line?


Current Diesels:
1981 240D (73K)
1982 300CD (162k)
1991 350SD (113k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
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