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Old 08-20-2014, 08:01 PM
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Join Date: Feb 2014
Location: spencerport ny
Posts: 4
a/c doesn't work on drivers side

I have a 96 e320 with the inline six and 140,000 miles. My a/c blows cold on the passenger side vents but not on the drivers side. When I turn on the recirculate button it will eventually get a little cooler. I believe one of the flappers in the duct is not working. Can anyone help with locating the right one and how to diagnose the problem. Are they vacuum operated?

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Old 08-20-2014, 11:33 PM
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Join Date: Jun 2000
Location: Plano, TX
Posts: 2,529
No, it's low on refrigerant. Flaps don't control blending of heat/cold on the 210.
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Old 08-21-2014, 02:09 AM
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Join Date: Aug 2014
Location: Calgary, AB, CANADA
Posts: 19
Originally Posted by jcyuhn View Post
No, it's low on refrigerant. Flaps don't control blending of heat/cold on the 210.
Just saw your post, but have to ask the Stupid question:

I'm have "heat" issues on my 1988 300 SE, w126, just had it serviced and inspected - is it possible low "refrigerant - are you talking coolant" could affect the heat? however my seat heaters work ... not blazing hot, but at least kept me from freezing my a$$ off!

1988 Mercedes Benz 300 SE, W126, 184,986 km
1989 BMW 535i, E34, 351,000 km
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Old 08-22-2014, 10:07 PM
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Join Date: Apr 2006
Posts: 15
I have the same car and I can tell you that you are low on r 134 refrigerant. This is a tell tale sign that it is low. Do you hear a hissing sound from the vents? Have it charged up and your problem will be solved. Having said that, these model cars notoriously have leaky evaporators so beware. I had to replace mine as I was adding refrigerant once a week!
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Old 08-23-2014, 12:09 AM
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Join Date: Nov 2011
Location: Philadelphia, PA
Posts: 2,770
Low refrigerant.

1999 E300 220k
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