No a/c …HELP!
#1
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No a/c …HELP!
Gm , this is my 1st time posting on this site, so I’m not sure if I’m posting in the correct section.
Any help would be greatly appreciated. So I had no issues with my ac, I have been using it fine for the past 2 months. After parking it one afternoon, I went back to run an errand and the ac wouldn’t start…the light on the ac button wouldn’t even come on. I plugged sentry onto the car and got a message that the vehicle has Lo refrigerant ,when I clear the message it comes right back. So I went and purchased a can of refrigerant but the compressor won’t activate to add refrigerant … I took the car to a shop and was told that the car has refrigerant, he checked the compressor and found no issue, but mind you this is no Mercedes’ expect. Not sure if it’s a sensor that’s getting a mixed message which is stopping the compressor from enabling… anyone been through this?
,
Any help would be greatly appreciated. So I had no issues with my ac, I have been using it fine for the past 2 months. After parking it one afternoon, I went back to run an errand and the ac wouldn’t start…the light on the ac button wouldn’t even come on. I plugged sentry onto the car and got a message that the vehicle has Lo refrigerant ,when I clear the message it comes right back. So I went and purchased a can of refrigerant but the compressor won’t activate to add refrigerant … I took the car to a shop and was told that the car has refrigerant, he checked the compressor and found no issue, but mind you this is no Mercedes’ expect. Not sure if it’s a sensor that’s getting a mixed message which is stopping the compressor from enabling… anyone been through this?
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#3
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MY'14 W212 M276 3.5NA @60kMi
finish your job 👍
I plugged sentry onto the car and got a message that the vehicle has Lo refrigerant ,when I clear the message it comes right back. So I went and purchased a can of refrigerant but the compressor won’t activate to add refrigerant … I took the car to a shop and was told that the car has refrigerant, he checked the compressor and found no issue, but mind you this is no Mercedes’ expect. Not sure if it’s a sensor that’s getting a mixed message which is stopping the compressor from enabling… anyone been through this?
I plugged sentry onto the car and got a message that the vehicle has Lo refrigerant ,when I clear the message it comes right back. So I went and purchased a can of refrigerant but the compressor won’t activate to add refrigerant … I took the car to a shop and was told that the car has refrigerant, he checked the compressor and found no issue, but mind you this is no Mercedes’ expect. Not sure if it’s a sensor that’s getting a mixed message which is stopping the compressor from enabling… anyone been through this?
You won't need to vacuum the circuit if you're quick enough to swap!
No need parts?
Before anything look if connector contacts make/female are oxidized.
Clean or replace.
#5
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Thread Starter
Just an update, took the car to Meineke, they told me the compressor needed to be replaced and quoted me $3200, I ordered the pressure sensor and replaced myself and ac is colder than beforE… thank you guys … you saved me 3150
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CarFan1 (08-17-2022)
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MY'14 W212 M276 3.5NA @60kMi
FANtastic !
This $3k discount was within your reach
Any other faulted modules while you're here?
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MY'14 W212 M276 3.5NA @60kMi
is pressure regulation fail-safe ??
This fault says that your engine oil pressure regulation is faulty.
Poke around Xentry to read oil pressure data!
-- It's not bad if you're stuck always get high ressure
-- It's bad news for the camshafts spinning in aluminum heads if the valve is stuck bleeding pressure.
Poke around Xentry to read oil pressure data!
-- It's not bad if you're stuck always get high ressure
-- It's bad news for the camshafts spinning in aluminum heads if the valve is stuck bleeding pressure.
Last edited by CaliBenzDriver; 08-17-2022 at 12:56 AM.
#9
pressure sensor
Hi Mike, I’m have a similar problem. Just wondering where on the car you located the low pressure sensor?
#10
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