I just picked up my 350SD from the mechanic from a tweak to my GreaseCar system (which is perhaps now working properly - I'll ultimately see how it does tomorrow) but on the drive home, I realized that I have NO climate control at all. Nothing. I'll elaborate...

None of the buttons activate anything, including that A/C buttons - they do not turn on the fan nor the compressor. The recirculation button does nothing and does not light up when pushed. I have no fan at any level at all - granted it was acting up last week prior to the mechanic's visit, but the fan would kick in if I thumped the dash under the glove box. The defroster does not work, either. Although it was quite hot here this evening, I believe that the air that was wafting through the vents while I drove was heat, even with the temperature dial turned all the way to the coldest position. Seems as though my climate control has completely shut down and I am left with nothing but oozing heat.

Here's my amateur theory - I recently had my EGR removed (for testing, thanks to Brian C.'s testing kit) and the mechanic disposed of the vacuum hose that went to it, but I'm not so sure that they plugged it at its origin. If this is the case, wouldn't this cause a considerable leak in my vacuum system? I say this because I have also noticed that my shut-down time has been longer than it was before - the engine does not run on very long, but it does seem to spin down slower than it did prior to the EGR removal when it was an almost instant shutdown. Might it be possible that this hypothetically open vacuum connection could be causing these random (perhaps not-so-random) problems? If so, would someone be so kind as to help me find it so I can plug it if it is still open?

Any and all input would be greatly appreciated and is welcome. I have searched other threads, and will continue to do so, but if anyone knows of another thread from which I could benefit from reading, please point me in the right direction.

I'm tackling this car one problem at a time and with the confidence that eventually I will get *almost* everything done!

__________________
Autos:
1991 350SD 276,000 miles
2001 VW Beetle TDI 115,000 miles

Horns:
1955 Selmer Mark VI Alto (55,xxx)
1958 Selmer Mark VI Tenor (85,xxx)
1964 Selmer Mark VI Tenor (125,xxx)
1967 King Super-20 Tenor (430,xxx)
2002 Selmer Series III Soprano

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