vaccuum lines for heating and air conditioning

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ALONEAGAIN
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model is a 1988 Mercedes 190E 2.3, girlfriend and I had to remove the complete dash on this recently purchased car to replace the heater core, we found a "Gray" colored vaccuum line laying on top of the wiring harness just behing the instrument panel not hooked to anything, I traced the line back through the firewall to a T-fitting on the intake manifold> We started to engine and let it run abit then shut it off noticing there was not vaccuum to lock the doors. Its obvious this line is a central player in the main vaccuum to operate the vaccuum operated doors , sun-roof, and the flapper valves on the heating and air conditioning ducts. My question is where can I get a copy of the routing of these vaccuum lines, we bought a repair manual but has no diagram of these lines and where they go. Please help. Thank You, Denny
Nov 17, 2007 at 7:42 PM
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SLIPPY71
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We have the same problem. IN fact, to shut our car off, we have to engage the locks. Weird. Please let me know if you find a copy of the vacuum lines (preferably for a 1985 300DT). thanks.
Nov 25, 2007 at 6:34 PM