Andres Morejon

I have a 99 clk430 hard top and the whenever the ac is on, there is cool air from all vents on the passengers side. The left side of the center vent blows warmer, but not hot air, and the far left vent blows HOT air as well as the drivers footwell. Seems to get worse once the car warms up. Any guesses?

Plutoe

Look to the stickies and run\post the AC self diagnostics----wada you get!

Andres Morejon

The sensor value are
1 107
2 127
3 118
4 83
5 160
6 198
7 17
8 146
9 5
10 5.1
20 7.8
21 6
22 0
23 0
24 13.8
40 8
41 5
42 200
43 14

Andres Morejon

The codes I recieve are:
Eb1 227
Eb1 419

Plutoe

Re: sensor values: The issues as I see it are as follows:


3 and 4 R and L heater core temps=should be in the low 80's


5 Evaporator temp sensed at 160=should be in the low 40's


Both of the above have a direct impact on the quality of cold air. Therefore you have a faulty duo valve and or a faulty evap sensor or valve.


1 and 2 impact the quality of the ac controller ability to work correctly,1 is the in car temp at 107, really, 2, outside air temp=127 really?


The next step is see an AC specialist as your issues are not a DIY.