Date registered: Oct 2007
Vehicle: 1998 c230 170K
Location: Exit 98, New Jersey, U.S.
Mentioned: 1 Post(s)
Quoted: 9 Post(s)
Have you attempted the CCU diagnostic?
I have a 1997 mercedes c280 and I'm having some troubles with the A/c and climate control. When I turn the temperature to "Low" or 52 degrees which is the lowest temperature where you would expect the A/C to come on, warm air just comes out. I have tried recharging the system with the proper refridgerant but nothing changes. The A/C compressor does come on and runs so I don't think that's the problem. The other functions with the dashboard control unit work fine. Does anyone have any ideas on what's wrong or what I should do? Thank you.[/QUOTE
Have you tried the CCU diagnostic procedure? If that checks out o.k. then you may want to put dye leak detector in to see if there is a leak in the system. You can purchase a inexpensive a/c guage at most parts stores to also check the high and low side operating pressures. B