My ACC unit just started acting funny on me lately, It distributes A/C to all the vents (dash & floor) at the same time. What can I check for to correct this?

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1982 300DT *4-speed*// proper 617 donor for conversion // W126 big brakes // front wagon swaybar // european lights & bumpers // rear headrests // lumbar support // warning triangle // overdrive water pump pulley & 9 blade fan // Too many more to list Dark blue/ Palomino.

1983 300D euro no longer a 4 speed. . swap/parts carr

I can't really help you, but I have this problem as well.

Have you previously resoldered your CCU? I did mine, and now that the A/C works, it is doing this. The A/C was not working before, so I can't say if the resoldering was what made it start, but it is a suspect.

The fact that it's coming out the center indicates it's not a vacuum problem, so I'm at a loss.

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1984 300DT turbo 138k mi

Still hauling me to school and back.

Handy Site:
http://www.dieselgiant.com/

as a matter of fact, I resoldered my CCU about...Id say a month and a 1/2 ago. At first it was fine, and now its being funny..

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1982 300DT *4-speed*// proper 617 donor for conversion // W126 big brakes // front wagon swaybar // european lights & bumpers // rear headrests // lumbar support // warning triangle // overdrive water pump pulley & 9 blade fan // Too many more to list Dark blue/ Palomino.

1983 300D euro no longer a 4 speed. . swap/parts carr

You may still have a problem with it. When my cruise went, I resoldered as well, but it only lasted a month or so before it died again.

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Adam Lumsden
(83) 300D
Vice-President of the MBCA International Stars Section