Been reading about A/C problems but so far none similar to my scenario, so hoping for some advises here...
Living in Singapore where we get hot tropical and humid weather here all year round.... Driving a E30 316i Manual Year 1989
Stated having this problem since owning the car abt 1 year ago...
The aircon works fine, but after driving (cruising) for more than 2 hours, the aircon began to blow warm air and worst the aircon fan seems to blowing weaker thru the vent as the longer continue to drive...
Had changed the cooling coil (old one was fully covered with dust cake after 20 years), evaporator, dryer, vacuumed and filled with new refrigerant gas...
However it seems that the problem still there after driving a long distance journey especially when I try pushing the pace a little more than usual
Cure:(via trial and error)
1) Reach destination, turn off engine for 30 mins or more and then everything is back to normal, the next time the car starts again
2) Turn off the aircon compressor, but fan speen remained ON and turn the heater ON but turning the knob fully to the heater side.... continue to drive for 10 -15 mins.... Viola, the aircon is back to normal again when switched back ON the compressor!!!
It seems like the cooling coil is frozen with 'ice' thus causing the vent to blow very little air thru it (this time after the repair, its still blowing cold air)! When I kinda 'heat' it up for awhile, it get's back to normal... what could be the problem? Checked with my mechanic and he thinks that the compressor is working well, and so far no radiator leak yet (thank god)
Thanks for your advice in advance....
Living in Singapore where we get hot tropical and humid weather here all year round.... Driving a E30 316i Manual Year 1989
Stated having this problem since owning the car abt 1 year ago...
The aircon works fine, but after driving (cruising) for more than 2 hours, the aircon began to blow warm air and worst the aircon fan seems to blowing weaker thru the vent as the longer continue to drive...
Had changed the cooling coil (old one was fully covered with dust cake after 20 years), evaporator, dryer, vacuumed and filled with new refrigerant gas...
However it seems that the problem still there after driving a long distance journey especially when I try pushing the pace a little more than usual
Cure:(via trial and error)
1) Reach destination, turn off engine for 30 mins or more and then everything is back to normal, the next time the car starts again
2) Turn off the aircon compressor, but fan speen remained ON and turn the heater ON but turning the knob fully to the heater side.... continue to drive for 10 -15 mins.... Viola, the aircon is back to normal again when switched back ON the compressor!!!
It seems like the cooling coil is frozen with 'ice' thus causing the vent to blow very little air thru it (this time after the repair, its still blowing cold air)! When I kinda 'heat' it up for awhile, it get's back to normal... what could be the problem? Checked with my mechanic and he thinks that the compressor is working well, and so far no radiator leak yet (thank god)
Thanks for your advice in advance....
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