I was replacing the rubber connectors between some vacuum lines in the engine compartment and got a black one loose.

There are 5 vacuum lines, next to the brake booster, that go into the passenger compartment. There r 2 brown lines, 1 green, 1 white and 1 black that go thru a rubber housing into the passenger compartment, I guess entering the car somewhere behind the instrument cluster.

The black line came loose somewhere inside the passenger compartment, behind the rubber housing. This black vacuum line seems to originate at the fuel pump and go somewhere into the passenger compartment.

What does this black line do and where does it connect ?

Thanks for ur input.

Nothing...nowhere.



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[http://languageandgrammar.com/2008/01/14/youve-got-problems-not-issues/ ]

"A liberal is someone who feels they owe a great debt to their fellow man, which debt he proposes to pay off with your money."

To be more exact....vent line.


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__________________
[http://languageandgrammar.com/2008/01/14/youve-got-problems-not-issues/ ]

"A liberal is someone who feels they owe a great debt to their fellow man, which debt he proposes to pay off with your money."

Mercedes uses the black color hard plastic line for a vent line ( It allows air to be sucked into the vacuum system as the system wants). They insert it into the passenger cabin so it gets "fresh" air. Just slip it back thru the firewall and go drive.

Dave

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1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car

Thanks guys !

I was sweating bullets thinking that I really screwed up !

Just got the car on Tuesday and am in the process of doing the routine stuff


Done the following
Fuel filters
Oil change
New Air filter
replaced diesel return lines (at injectors)
continue replacing rubber connectors


Next on the list

New motor mounts and tranny mount
Tranny fluid and filter change
Diff oil change
Changing the 3 plastic fuel lines