This is a 1997 W210 E320.
I have #7 reading as 00 ( I think refrig. press.) with engine on or off. Compressor will not turn on. If there was a leak in the evaporator (like my W124) wouldn't the pressure read at last 1 bar, atmosphere?
I'm hoping that the sensor has failed.....anyway to test it?
Also noticed that #10 (fan voltage ?) reading changes as the fan speed selector is changed to hight setting butthe fan speed doesn't change from low, or about 2.3 V.
Does this mean the fan speed resistor is OK or not OK ?
Also, where can I get a list of what all the other readouts refer to and the normal range for each for this car?
There seem to be differences between car models for the same year.
Nice having all the numbers but if I can't relate them to anything it's still all a mystery.
I have alldatadiy but they don't even describe the test proceedure.
Thanks