GLC Class (X253) Produced 2016-2022

A/C issues now.......

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Old Jan 12, 2026 | 09:07 AM
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GLC 300
Angry A/C issues now.......

I tell you what, I am beginning to loathe purchasing this vehicle. I have had nothing but issues from the first month until now. First the leaks inside causing a $2300 fix, to the coolant now showing low just a week after having fluids topped off. Now my A/C is blowing hot air this morning with the a/c on and temperature on 72 degrees. It is 38 degrees out this morning, but I HIGHLY doubt that has anything to do with this. I cannot afford to bring this back to the dealership for another $200 diagnostic charge plus God knows whatever else is now wrong with this car. UGH

Any thoughts on this issue? I thought at first it was the coolant, but wouldn't that only affect the A/C if the car was overheating? My engine temperature gauge was not even at the halfway point this a.m. when leaving for work. Any thoughts/input would be greatly appreciated.

Thank you!
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Old Jan 12, 2026 | 03:52 PM
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'21 AMG53 wDPP & ARC, 19 GLC300 - Former-03 C240,2 ML BlueTecs,20 GLE450 E-ABC,15 Cayenne D,17 Macan
Originally Posted by JCE1980
I tell you what, I am beginning to loathe purchasing this vehicle. I have had nothing but issues from the first month until now. First the leaks inside causing a $2300 fix, to the coolant now showing low just a week after having fluids topped off. Now my A/C is blowing hot air this morning with the a/c on and temperature on 72 degrees. It is 38 degrees out this morning, but I HIGHLY doubt that has anything to do with this. I cannot afford to bring this back to the dealership for another $200 diagnostic charge plus God knows whatever else is now wrong with this car. UGH

Any thoughts on this issue? I thought at first it was the coolant, but wouldn't that only affect the A/C if the car was overheating? My engine temperature gauge was not even at the halfway point this a.m. when leaving for work. Any thoughts/input would be greatly appreciated.

Thank you!
Tell us the year and model of your car so maybe somebody can help.
You might also put it in your profile so we don't have to ask you.

Did you buy it new or used? Is it still under warranty?
Good luck with this.
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Old Jan 12, 2026 | 04:10 PM
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If you're paying out of pocket, take it to an independent, not a dealership.

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Old Jan 12, 2026 | 08:04 PM
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'17 IS350 F Sport '19 GLC300, '94 Supra
If it's 38 degrees outside, and I have my climate control set at 72 degrees, I'd *expect* it to blow hot air whether red AC led is illuminated or not.
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Old Jan 13, 2026 | 11:22 AM
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GLC 300
2018 GLC 300, purchased used about 5 months ago. I will top off my coolant tomorrow, as I checked the level and it is visibly low. Thanks for the input!!
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