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#1
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AC Question
ok so summer is coming and you know how unforgiving summer is in california. i have a 1987 190e and i was thinking doing an ac job to is or just simply let it go. However i am still trying to consider doing the ac job.
here are the symptons: -cold air do come out of the vents but it is not cold enough. -the ac clutch engages but it intermittently disengages -when the engine temp is above 90 the compressor does not engage at all -on the center vent, the right side of it blows colder air -in some cases the vent blows cold and hot air mixed together. -belts are tight what do you think should be done to this? a recharge? a complete do over? let me know thanks, e |
#2
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Just a tip: post high and low pressures, invaluable data when remotely diagnosing A/C issues.
__________________
08 W251 R350 97 W210 E320 91 W124 300E 86 W126 560SEL 85 W126 380SE Silver 85 W126 380SE Cranberry 79 W123 250 78 W123 280E 75 W114 280 |
#3
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Quote:
- Cold air, but not enough - sounds like your refrigerant charge is low. - Intermittent clutch disengagement - it's supposed to do this, but if too often, same as last reason...low charge. - Not REAL sure about no engagement above 90 degrees. I believe there's a sensor that disallows engagement at temps > ???. 90F seems a bit low to cause this. Is the car's coolant temp high? - Mixed vent temps - blend door problem. As pointed out above, low/high side readings will tell the story.
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Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein" |
#4
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thanks
thanks for the clarification. i think im going to have it recharged first and see how it goes. now abut the blender, is tat something i should replace? and one more thing i noticed, the de-humidifier keeps on going off and i have to turn it on from time to time.
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