W210 interior misting up

W210 interior misting up

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Discussion

harrycovert

Original Poster:

448 posts

181 months

Thursday 21st January 2021
quotequote all

I normally run the air con continuously. But just recently the screen and windows have started to mist up.
I have replaced the 4 cabin air filters but still have the problem.I placed a dehumidifier in the car and got about an egg cup full of water out .
I have checked and the compressor clutch is engaging and the low pressure side is showing 45psi.

I have checked the diagnostic codes and got the following
Eb1 413
Eb1 234
Eb1 416
FF
Then I checked the Sensor values
01 02
02 01
03 02
04 05
05 01
06 07
07 02
08 02
09 05
10 1.1
11 .3
12 4.2
20 0
21 00
22 00
23 00
24 10.9
40 74
41 33
42 104
43 136
Is there anything in these readings that would indicate what to try next.

brisel

879 posts

213 months

Thursday 21st January 2021
quotequote all
I have no idea what those codes mean.

Air con will not work below 6-8 degrees C to prevent the risk of liquid refrigerant getting back to the compressor. Check that the area in front of the bulkhead is draining freely and water isn’t getting into the pollen filter housing. A common symptom of water ingress is a damp front footwell mat.