Acura MDX 2010 and up AC Dont Work, Please check fuse and Relay before spending $1400 on Compressor

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[davidmcgee]

You’re a genius!!
Our air went out in our MDX after driving 10 hours in the hot July sun. We checked out your video, stopped at the local AutoZone and change out the relays. Work perfectly! Thank you!

[ogx-rzjr]

People asking why hot air works if cold doesn't, it's because hot air is just using engine heat. It's not really using the A/C system, the A/C can be dead but you'll still get heat because it's just using a fan blowing over an internal cabin radiator that's connected to the engine coolant system. This hot coolant circulation is fairly elevated in comparison to the rest of the system, so if your car is low on coolant there may not be enough to circulate through the cabin radiator. So if you have no heat one of the first things you would want to check is making sure your car has enough coolant, as counterintuitive as that might seem.

[LaserrSharp]

I just replaced the AC relay and 7.5 fuse on my MDX and I’m sitting in the parking lot enjoying the cold air. Thank you! 🙏

[billsteward]

Thank you so much, it cost me $9 for the relay and worked perfectly.

[gsr]

I wish I had seen this video first. I took my 2010 MDX to my mechanic (generally an honest person) and he tested a bunch of things and came to the same conclusion - it needed a new relay. but paid $85 due his time and expertise mark up. still better than some places which want to charge hundreds of dollars to fix the AC.

[Blaquer]

Man I just did a timing belt on my wife’s MDX and she was blaming me for breaking it 😅. Pulled over to the side of the road and found this video. Swapped in the fog light relay and we have cold air again! I’ll swap both relays in the morning.

I also see you’re a Felony driver as well! It’s an awesome RC.

[abedinzymberi]

Thanks man you saved me $800 this worked for me on my car

[jeremymiller]

Bro! Thank you so much! Saved me 200$ for a diagnostic!

[RobKohrman]

Thank you so MUCH!! It was the relay!!!

[silversurfer]

Blows heat, but no cold. AC line is cold and Freon is full. I will try this fuse, thanks.

[tanneranderson]

Relay seems to be in tact but still blowing hot air. I added Freon and still nothing what else could be the issue?

[THEBEST-vgwt]

I got a problem with my 2019 Acura mdx
Ac and hot works great but don’t blow air to the windshield any idea

[roserivas]

Hi. I just got the same problem. The A.C. doesn't blow cold air just hot air. I took to mechanic and he put freon thinking it was the problem, But it Wasn't. He said i need a new compressor. But im gonna check or buy some new relay/fuse to see if thats the issue. I just finished paying off my acura mdx. Its sucks.

[rendiix]

On my 05 mdx fuse and relay are ok but Compressor wont spin and fans wont come up when i turn on the ac so what i do now

[bigdbassn]

My 08 TL blows hot air. Could it still be a fuse and relay problem? Thanks.

[ericmobley]

I have a 2014 MDX. So there have been 3 or so occasions where the ac was not working...blowing hot/warm air. The issues seem to resolve itself when, the first time we drove over a railroad track and it started blowing cold like normal. A second time I remember it came back on to normal when I was backing out of a parking space and I ran up on a curve on the passenger side and the ac started working properly. Each time it goes "out" it was never out for a long period of time. The ac always seemed to resume to normal function after the SUV went over a hard bump or jarred in some manner. Do you think this could be due to a fuse that is partially dislodged?

[KikoLugo]

Can I try other relays? for example with fog relays?

[marilouytreeide]

I have a RDX Accord 2010 . I was cheated when I took it to get it fix the Ac . And won't pay my money back. How can you show me how to fix it plz

[senatedocument]

This isn't very detailed, what about the primary fuse Box and the long fuse Box area how do you remove that? I know how to remove 2 prong fuses.

[ramanansivalingam]

My 2012 MDX A/C display or buttons are not working any idea?