Quote:
Originally Posted by otto huber
Wow! Just when I thought that I was finally wrapping my head around this complicated HVAC system, you throw out this curve ball.
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I think this is the freeze switch mentioned, MB calls it "A/C Temperature Sensor for Evaporator, (ETR Switch)"
http://www.pelicanparts.com/catalog/SuperCat/W123/MBZ_W123_VENTAC_pg1.htm
Here's an interesting post on modifying it A/C modified: ETR-switch from Maytag
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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked
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