Saw a recent post regarding climate control problem on '80 to '85 300Ds. Hope the same experts are still around. Problem: AC has been converted to R134a and works fine at idle and slow rpm, just as it did with R12 refrigerant. However, anything much past idle and it starts getting warmer to the point no cool air at all exits dash ports. Return to idle, everything fine again. Compressor stays on regardless of rpm. Cross over tube at front of engine remains very cold, again, regardless of rpm. Have replaced the climate control module in center console twice, virtually the same results. This problem was also present with the previous R12 refrigerant. Any suggestions? (Please, no sarcastic comments needed)
- posted
18 years ago