Pulling AC codes on C240
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Junior Member
Joined: Jan 2008
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380sl, 450sel
Pulling AC codes on C240
A friend of mine was having trouble with the AC on his 2002 C240 blowing hot air, evidently because the freon was low. So I added two cans of dye charge, which brought the low side up to 40PSI and caused the AC to work properly.
A couple of weeks later, however, the AC started blowing hot again, even though the low side pressure is 30-35 PSI. But I can't detect any leak.
Should I suspect the evaporator, or is there something else to check first.
I understand that the C240 has AC codes, but I don't know how to pull them. So any help would be appreciated.
Thanks in advance
A couple of weeks later, however, the AC started blowing hot again, even though the low side pressure is 30-35 PSI. But I can't detect any leak.
Should I suspect the evaporator, or is there something else to check first.
I understand that the C240 has AC codes, but I don't know how to pull them. So any help would be appreciated.
Thanks in advance
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Joined: Jun 2008
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
You need a STAR to pull AC codes. Does the pump start? The pump won't start/switch on if the Refrigerant is low. It could be pipework, condenser or evapourator
Thread Starter
Junior Member
Joined: Jan 2008
Posts: 24
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380sl, 450sel
Unless someone here can think of some other reason for this, my friend's going to have this Indy replace the evaporator for $1000 in labor, and we're going to get a Behr evaporator on-line for $335 delivered. Does anybody happen to know who made the evaporators MB put in these cars? Hopefully it wasn't Behr. In any case, the best price we got from a dealer was around $2000 ($1500 for the labor (15 hrs @ $110) + 800 for the evaporator - 15% because of the AC special their running).
Based on an archive search, I' m assuming we should also replace one or more plastic stepper motor links and/ or stepper motors, but i'm not really sure which ones. Are any of these more prone to breaking than others?
I was also wondering if we should go ahead and replace the heater core while we were in there, even though I didn't find any reports of heater core problems in W203's?
Any additional advice would be greatly appreciated.
