Quote:
Originally Posted by Matt L
This is interesting. I've never seen a sight glass in an original HFC134a system. My '96 E doesn't have one.
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A 99 C230K should not have a sight glass - if he does somebody has been messing around with receiver/dryer or the hoses.
His car also has a different control head, its a more manual system and does not have the handy realtime diagnostic functions of the automatic system used on the W210's and earlier W202's.
As far as the original questions goes - your car is leaking refrigerant. If you want to fix it you have to find the leak and replace or repair the part that is leaking - its not rocket science.
If the A/C compressor is bad I'd expect to pay around 1-1.5K for materials and labor to fix it.