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Analog Dual Zone Climate Control

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Old Apr 21, 2022 | 01:45 AM
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S211estate's Avatar
S211estate
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2006 E350 Wagon
Analog Dual Zone Climate Control
Hi, I have an issue with the air blowing (slightly) warmer and weaker on the driver side vents.
I suspected it was just a bad heater valve, so I just installed a brand new heater valve today. But it didn’t fix it.

What could be the issue on this case?
Anyone has any idea?



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Old Apr 21, 2022 | 11:58 AM
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konigstiger
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From: North Scottsdale, AZ
'71 Pinto
Check refrigerant level if fine, have some pull fault codes using MB diagnostics.
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Old Apr 21, 2022 | 03:14 PM
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S211estate
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2006 E350 Wagon
Thanks, konigstinger!
Yes I’m gonna check on Freon first. I rarely see people talk about the control unit failure, but curious, could it possibly be the bad climate control unit?
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Old Apr 21, 2022 | 03:22 PM
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konigstiger
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From: North Scottsdale, AZ
'71 Pinto
Anything is possible but if refrigerant is fine I would opt for codes before replacing parts.
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Old May 6, 2024 | 07:58 AM
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mercedes benz w211
Originally Posted by S211estate
Hi, I have an issue with the air blowing (slightly) warmer and weaker on the driver side vents.
I suspected it was just a bad heater valve, so I just installed a brand new heater valve today. But it didn’t fix it.

What could be the issue on this case?
Anyone has any idea?


Hello, did you solve this problem? i have the same problem.
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