W211 E320 CDI only heats on driver side
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Joined: Apr 2023
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w211 E320 CDI
W211 E320 CDI only heats on driver side
Hello All,
I did not have any heat anywhere in the dash when getting my car out of winter storage this year. After some poking around on the forums I replaced the heater control valve and the thermostat. I wanted the 92 degree thermostat and just decided this was a good time to do it. I was rewarded with heat but only on the driver side, the passenger side just blows cool air on any setting. I drove the car hoping I had a coolant air bubble but no change. After reading the codes, I ended up with an error code of 95D0 - M2/7(Right blending air) error. It may or may not be relevant as I reset and will see if it comes back. So does anyone know how involved it is to replace the m2/7 actuator? Or does anyone have any other ideas on what to do next? I am trying to decide if I can live with it as is. Course that will depend on if the A/C works on both side
I read all the codes using a Mercedes module for EasyDiag and the above seems to be my leading candidate. I should also mention that this car has only been driven in the summer for the last 10 yrs and has 195K . I could have had issues with no heat on passenger side for some time as one rarely has cause to ask for lots of heat in the summer.
Regards and thanks in advance.
Kurt.
I did not have any heat anywhere in the dash when getting my car out of winter storage this year. After some poking around on the forums I replaced the heater control valve and the thermostat. I wanted the 92 degree thermostat and just decided this was a good time to do it. I was rewarded with heat but only on the driver side, the passenger side just blows cool air on any setting. I drove the car hoping I had a coolant air bubble but no change. After reading the codes, I ended up with an error code of 95D0 - M2/7(Right blending air) error. It may or may not be relevant as I reset and will see if it comes back. So does anyone know how involved it is to replace the m2/7 actuator? Or does anyone have any other ideas on what to do next? I am trying to decide if I can live with it as is. Course that will depend on if the A/C works on both side
I read all the codes using a Mercedes module for EasyDiag and the above seems to be my leading candidate. I should also mention that this car has only been driven in the summer for the last 10 yrs and has 195K . I could have had issues with no heat on passenger side for some time as one rarely has cause to ask for lots of heat in the summer.
Regards and thanks in advance.
Kurt.
Thread Starter
Newbie
Joined: Apr 2023
Posts: 5
Likes: 0
w211 E320 CDI
Thank you for the response and suggestion. I looked over the video closely and it gave me a bit of hope but still looks like I would have to cut the dash (where it would not be seen) to gain access. I think I will try it out though as soon as I get past some other problems with the car. I will keep you posted once I get a chanve to look at it over the next weekend.
