1982 300TD

So all of the sudden I've got no a/c, and weird vacuum issues. The power locks aren't working, and shutoff takes about 30 seconds. I checked for vacuum pressure coming off the main line, and it's good (it better be! I just rebuilt that pump!) Not a huge deal on that, it seems like just a leak I have to track down.

The real pisser is the a/c. It was working fine yesterday. Today, only heat and no center vents. Is there a way to test my climate wheel for proper operation? Also I had noticed when the heat was on, I could hear a faint hissing by the passenger knee plate (normal!??) and when I'd roll the climate wheel to MIN, the hiss would go away. Now, the hiss stays, and I've yummy hot air blasting in my face.

The compressor is running just fine. Hmm... center vents might start functioning after I fix my vacuum leak.... Thoughts??


One more quick tangent. I've got the wagon. I noticed something I alien to me the other day. In the rear of the interior, just in front of the spare tire is a little black metal tank with 3 braided lines running into it. WHAT THE HECK is that thing? I didn't really have time to investigate/trace it.

Thanks a million.

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'90 300SE --- 173k miles --- (Odometer just stopped working!)

'85 Cali 300D --- 193500 miles --- (Second one) Sold Nov '10

'82 300TDT --- 236,xxx miles --- (My first one) Sold July '09

l seriously laughed at that. anyways does it have a top? try taking off a line and seeing what comes out.

__________________
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?

As long as they would add one additional commandment for you to keep thy religion to thyself.
George Carlin (Wonder where he is now..)

1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won.

pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt.

Don't take a line off, unless you want diesel all over the car. Thats the diesel fuel "expansion tank"...it allows fuel from the main tank to flow into it if the fuel expands, such as when it gets hot outside.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

All of those problems can be caused by a vacuum leak. Time to break out the mity-vac!

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

I figured that's what it was b/c of the braided lines running to it.

Thanks buddy.

__________________
'90 300SE --- 173k miles --- (Odometer just stopped working!)

'85 Cali 300D --- 193500 miles --- (Second one) Sold Nov '10

'82 300TDT --- 236,xxx miles --- (My first one) Sold July '09