What is your question?
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What is your question?
I had my ac compressor replaced in March, and now two months later, the ac has failed again. The mechanic has diagnosed failure of the new compressor, and that being under warranty, has replaced it with yet another. I'm grateful he performed such a labor-intensive job without argument, but he tells me now, afterward, that he's found a freon leak behind the dash and an oil leak beneath the engine, which I'll have to repair at my own expense. He's a perfectly nice guy but not a trained Mini mechanic, and I, knowing nothing about cars, wonder: Do such leaks commonly occur when recharging the system, as he says, and do they, as he also says, generally indicate the failure of an old part -- in this case, the evaporator? Or is it possible the leak could have been caused by recharging the system at excessive pressure? Also, could something about his first repair have caused the oil leak? Could something about his first repair have caused the first compressor to fail, and if so, is there anything I can do at this point to prevent the compressor from failing again? Thanks for all help. I really don't want to put blame where blame isn't due, but I wasn't prepared for this, and as I said, am lost in the woods when it comes to cars.
2 Replies
The most common oil leak is the return hose on the power steering. It gets loose as the hose deteriorates from the heat of the exhaust syhstem right next to it. Have him check both of the BIG hoses to/from the power steering fluid reservoir. The engine can also develope leaks at the pan gasget but typically not a real problem especiall if you check your oil level once a month. The AC leak is a fialed part all on its own. It is a real PAIN to replace the coil under the dash, (evaporator) The condensor, (under the hood "bonnet") is not too bad. I wouild not suggest that he had anything to do with it. You cannot develop sufficient pressure in teh system to BLOW the system open and create a leak unless the part was not already compromised.
when a compressor fails, debris gets in the system. you must replace the dryer, completely flush the system, replace the orfice tube and bring the system back on line. if this was not done, debris from the failed compressor may have caused the evap to fail. as far as the oil leak, could not tell you. take your car for a second opinion before trying to point fingers back at him as he may have done nothing wrong. i would give him the benefit of the doubt before looking to blame him. Roy
This is a great help -- thank you. I certainly won't point fingers without getting a second opinion, but can you tell me what such an opinion would involve? Aren't these parts located deep within the car? Is it possible to tell whether the compressor has been properly replaced without taking everything apart again? Again, thanks.