07-08-2018, 11:10 AM | #1 |
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Questions about air conditioning
On a recent trip I noticed AC was not very cold on my 2013 M5 CPO that I picked up early last year. When car was in for front brake service (also have Maintenance plan), I asked them to check the AC as it was not blowing cold. They informed me that if they checked it and did not find anything wrong (other than Freon low) it would be about $350. If they found something wrong, all would be covered by warranty.
Day 1: They confirmed that it was not blowing cold and notified me that there was too much oil in the system. They were going to look for a leak. Day 2: They were unable to find a leak, but freon should not be that low indicating something is wrong. Keeping for 3 more days (weekend) to look closer for leak. I know nothing about AC, anyone have any ideas on what could be going on? I think that there is likely something wrong given that the freon was low in a 4 year old car that should have had the AC checked as part of CPO just over a year ago. I have a 2007 335I and a 2004 Expedition that have never needed freon and their AC's work great. Thanks for any ideas. |
07-08-2018, 05:56 PM | #2 |
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You could always take it into another dealership for a second opinion.
Have them pressure test the A/C system, if it holds pressure then the next step is to add more freon... |
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07-08-2018, 08:23 PM | #3 |
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My car’s AC hasn’t been working properly for the past two years. The first time it was blowing warm BMW said it was low on Freon. They added Freon and all was well for about a year. More recently it started blowing lukewarm, and there was a leak discovered behind my dash. The repair was fixed under warranty, and was a $1200 plus repair. I was bummed the entire dash had to be pulled out. Upon discovery of the AC leak, it turns out my rear differential was also leaking for the second time. I hope yours is just Freon🤞
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07-09-2018, 02:49 PM | #4 |
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Just so you guys know the R-12 "Freon" isn't used in any modern car due to ozone depletion concerns from when it escapes and generally R-134a is used instead. Technically R-12 had the name Freon and R-134a does not.
This is important only because the two systems are incompatible. So no one should be putting R-12 Freon into your car. I realize you and the shop may be using the term loosely but it's important to know just in case. |
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