w210 - How to clear DTC memory - A/C system
05-07-2004, 09:51 PM
#1
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w210 - How to clear DTC memory - A/C system
Does anyone know how to clear the DTC memory?
The A/C compressor is not kicking on at all on our E300. All of the sensors are giving readings.
Readings from climate control diagnostic
Code #7 - 06 bar
Code #8 - 89 - this is the temperature in Farenheit
The bar readings on my '97 are higher at 14-17.
It seems as so that there would be low pressure in the cooling system, but with everything off on our little pressure gauge the figure is high, in the red. When we checked my '97 it was on the border of red, but the pressure gauge reads in PSI, not bar.
There has got to be a simple way to clear codes on these.
The A/C compressor is not kicking on at all on our E300. All of the sensors are giving readings.
Readings from climate control diagnostic
Code #7 - 06 bar
Code #8 - 89 - this is the temperature in Farenheit
The bar readings on my '97 are higher at 14-17.
It seems as so that there would be low pressure in the cooling system, but with everything off on our little pressure gauge the figure is high, in the red. When we checked my '97 it was on the border of red, but the pressure gauge reads in PSI, not bar.
There has got to be a simple way to clear codes on these.
05-09-2004, 12:53 AM
#2
MBWorld Fanatic!
Thread Starter
*Update*
Checked the compressor today by manually running 12 volts to the switch at the compressor and it turns on and cools. Pressure of the refrigerant was fine as well.
We tried to swap climate control modules from mine to see if we get the same result. We installed my module into the other E300 and everything works fine. I then plugged the "defective" unit into mine and I had the same result.
So we've deduced that there is something wrong with the climate control unit.... We also tested the switch to see if it was even functioning and it does.
Any ideas guys on where to buy a replacement. Or at least who can possible repair these modules?
We tried to swap climate control modules from mine to see if we get the same result. We installed my module into the other E300 and everything works fine. I then plugged the "defective" unit into mine and I had the same result.
So we've deduced that there is something wrong with the climate control unit.... We also tested the switch to see if it was even functioning and it does.
Any ideas guys on where to buy a replacement. Or at least who can possible repair these modules?
05-16-2004, 11:10 PM
#3
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Join Date: Jun 2003
Location: Orlando
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E550 Coupe
i dunno if you could help me any...but my old AC compressor was leaking oil and had to be replaced. the system recognized that it was bad and put on "EC" mode permanently. now, after it has been replaced, the "EC" still stays on and it wont run the new compressor. if you play around you can get EC to come off but it's really annoying...
