My son's 2000 C230K did this and a new duo valve solved the problem. No cold air, just hot air from the vents. Even when the AC was not on, hot air would come out of the vents.
With your AC running check the hi-pressure line, should be ice cold and sweating. If this is not the case, then it might one of many other problems, i.e. compressor, low R134, etc.
I have heard that the duo valve just gets gummed up and a simple cleaning will revive them.
An indie shop diagnosed the problem, so I let them do the repair.
With your AC running check the hi-pressure line, should be ice cold and sweating. If this is not the case, then it might one of many other problems, i.e. compressor, low R134, etc.
I have heard that the duo valve just gets gummed up and a simple cleaning will revive them.
An indie shop diagnosed the problem, so I let them do the repair.
