Ok well today my climate control randomly decided not to put out heat and not select different vents. Also my rear headrests do not work, which I know for a fact worked the day before. Also the door locks were acting fun. So I started digging around under the hood and found the main vacuum line to the egr and turbo stuff unhooked, but I know thats never been hooked up because ive been trying to find that line for a while now..(she runs so much better this way btw)

Anyway now that you have some background, I started thinking wait arnt my door locks and headrest powered by a separate electric vacuum?? So what would cause these accessories not to function? Also does the climate control have anything to do with this or is it just a separate vacuum issue?

Any input would appreciated

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1987 300D(Erma)- #14 head, 193k
2003 TDI Beetle sold
1985 300sd sold
1987 300D(Ursala)- #14 head, 157k when sold
1987 300D(Wilbur)- #14head, 356,000+miles, sold after 7 days of owning it.
1992mercedes 300d- totaled and in a junk yard somewhere..
1983 mercedes 300sd- scrapped
1980 mercedes 300sd first mercedes diesel-sold

Headrests and CCU are from the engine-driven vacuum pump via a common vacuum line that IIRC goes through near the master cylinder.

The door locks run from the pressure/vacuum pump under the rear seat (yellow air lines).

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Gone to the dark side

- Jeff

thanks, I went out and looked and one of the lines going through the firewall near the master cylinder was very very brittle. So ill be replacing hard vacuum lines.

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1987 300D(Erma)- #14 head, 193k
2003 TDI Beetle sold
1985 300sd sold
1987 300D(Ursala)- #14 head, 157k when sold
1987 300D(Wilbur)- #14head, 356,000+miles, sold after 7 days of owning it.
1992mercedes 300d- totaled and in a junk yard somewhere..
1983 mercedes 300sd- scrapped
1980 mercedes 300sd first mercedes diesel-sold

I'm surprised it runs well with that vacuum line disconnected.

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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles
06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

Well I had a big miss like running issue that i couldnt get rid of and it randomly went away the other day. It now runs smoothly but idles to low, but I think that is unrelated to this. (ovp/eds)

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__________________________________________
1987 300D(Erma)- #14 head, 193k
2003 TDI Beetle sold
1985 300sd sold
1987 300D(Ursala)- #14 head, 157k when sold
1987 300D(Wilbur)- #14head, 356,000+miles, sold after 7 days of owning it.
1992mercedes 300d- totaled and in a junk yard somewhere..
1983 mercedes 300sd- scrapped
1980 mercedes 300sd first mercedes diesel-sold