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2016 MDX Adv/Ent Sh-AWD 33K miles

It's been very hot here for the last 2 weeks and the A/C air is just a slightly cooler than fan air. Would this be a simple freon addition and is this covered under a warranty?
 

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There's nothing that can be done, I have had my ac evacuated and recharged, no leaks at all and it was still the same temp afterwards. A honda crv cools better than this car which is a shame.
 

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2016 MDX Adv/Ent Sh-AWD 33K miles

It's been very hot here for the last 2 weeks and the A/C air is just a slightly cooler than fan air. Would this be a simple freon addition and is this covered under a warranty?
I believe it would be covered under warranty. When I first bought my 11 Advance, I had similar issue. Dealer first added freon and well as a dye to trace leak. It took three trips to dealer but finally found issue and fixed--under warranty.
 

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If there's a problem with the a/c it'd be covered under the warranty.

It's hard to say what the issue might be - you should leave it to the trained techs to determine what the problem is and what the fix is. They can quantify whether there's a real issue or a perception or operator issue.

Note that 'adding freon' is seldom a real fix. The a/c is a closed system and there should not be any freon leaking and hence no need to replace it. If it's low on freon for some reason it means there's a leak and that leak needs to get fixed before simply adding more freon, which would just leak out if the leak isn't fixed.

On my 2014 MDX, crossing deserts in the summertime with temps in the 110s and even around my area which is in the southwest, the a/c performs fine. It took me a bit to get used to the 'auto' function of this a/c versus the simple 'on/off' type of a/c I have in other vehicles but it actually works well despite it 'ramping up' the fans, etc. when it's first turned on versus blasting immediately. I set the temp at 70 when I first picked it up 4 years ago and haven't changed it summer/winter, hot/cold.
 

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There's nothing that can be done, I have had my ac evacuated and recharged, no leaks at all and it was still the same temp afterwards. A honda crv cools better than this car which is a shame.
Yes it would be covered under warranty. I have had no problems with the a/c during this heat wave. There has to be an issue with yours.
 

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I taking mine in next week to have the dealer look at it. It blows cool air but not cold air like out TLX or previous Pilot.
 

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2016 MDX Adv/Ent Sh-AWD 33K miles

It's been very hot here for the last 2 weeks and the A/C air is just a slightly cooler than fan air. Would this be a simple freon addition and is this covered under a warranty?
Got to an auto store and buy an infrared temperature gun and show us the temperature. "Not cold enough" is too subjective.
 

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On my AC system the Acura dealer measured the temperature at one point at 44 degrees. He later came back and on the same setting it was at 60 degrees. Later it was at 52 degrees. After an evaluation it was determined that the issue is not the compressor or freon level but some motor controlled flapper that controls the blending of cooled air to deliver the right temperature air at the vents.
 

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For anyone who is trying to do their own diagnostics/troubleshooting.

I've attached the A/C test guide pulled from the service manual to help you with calculating the outside ambient temperature and the operating temperature inside the car.

See attachment.
 

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For anyone who is trying to do their own diagnostics/troubleshooting.

I've attached the A/C test guide pulled from the service manual to help you with calculating the outside ambient temperature and the operating temperature inside the car.

See attachment.
Thanks for this. You are the best!
 

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Discussion Starter · #11 ·
So I took it to the dealer and upon inspection, freon level was "slightly low". They performed the dye test and found no leak, concluded that the factory never sufficiently charged it and freon was added. And yes it's covered by warranty. However I'm with usmarinedelta. It did not make much of an improvement so I'm accepting that this car just doesn't have it blow out the really cold air.

Yeah my description is subjective but I'm strictly going by the comparison to 2 other cars in my house. In those cars, it's normally too cold if I put the temp under 74 especially in the evening. Without having to do a technical testing, my body tells me 74 degrees in our other cars equates to about 70 in my MDX.

But I'm glad that I took it to the dealer to insure that there is no leak.:smile2:
 

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Maybe it'd be worth getting objective on this and bringing a thermometer with you as you drive the various cars in similar conditions to see what the temps are. The settings of '70' in one vehicle versus '74' in another vehicle are apples/oranges since the actual temp where you sit and what you feel on your face is influenced by where the temperature sensors are in the vehicles, how those vehicles are designed to behave with the attempt to hold a certain temp, etc. In addition, something as simple as how the vents happen to be be adjusted and their placement will give a different impression of the temp to you.

I've found the a/c in the MDX to be fine - I set it at 70 degrees 4 years ago and haven't changed that setting summer/winter. It's been over 100 here the past few days and it worked fine to cool the vehicle.

It's good you don't have any leaks but it shouldn't have been down on the refrigerant pressure - it makes me wonder if they stated that and added a bit just to try to placate you. Maybe it's true though that the factory didn't fill it quite right to begin with but then it sounds as if you can't feel a difference in the cooling regardless.
 

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I wouldn't accept it not performing. I would request information on what Acura considers an acceptable level of cooling. Call Acura customer care and file a complaint if necessary.

http://www.10w40.com/features/diagnostics/ac-performance-testing

Our 2015 cools the first two rows pretty well for the size of vehicle. The remote starter helps a lot to take the edge off before putting kids in the car.

However, the third row is a sauna in the summer. Can't believe Acura decided that ceiling or c-pillar vents aren't needed for the third row. Luckily we rarely use the third row so we can deal with it.
 

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So I took it to the dealer and upon inspection, freon level was "slightly low". They performed the dye test and found no leak, concluded that the factory never sufficiently charged it and freon was added. And yes it's covered by warranty. However I'm with usmarinedelta. It did not make much of an improvement so I'm accepting that this car just doesn't have it blow out the really cold air.

Yeah my description is subjective but I'm strictly going by the comparison to 2 other cars in my house. In those cars, it's normally too cold if I put the temp under 74 especially in the evening. Without having to do a technical testing, my body tells me 74 degrees in our other cars equates to about 70 in my MDX.

But I'm glad that I took it to the dealer to insure that there is no leak.:smile2:
My system cools so well that 2nd row passengers always turn the rear HVAC system off. It is that good.
 

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Saying my air conditioning doesn't feel cold is a waste of everyone's time because "feel" is subjective and unscientific. A laser temperature gun costs $20 at an auto supply store. Go buy one.

My MDX gets meat locker cold. Temperature comes out at 18F or -7C if I put it on low. However, I just set it to room temperature and never touch it. The odd time if I am too hot or too cold I do adjust the temperature in 1 degree increments. It is that good.
 

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Wondering if your MDX is working as designed? If you turn down the set temperature does the air get colder? I have a couple of other cars where the air gets much colder, but you have to turn the fan up and down or change the temp dial to get the correct temperature. I think the MDX adjusts the air temp and flow to keep the cabin at the set temp, and I do t think that means blowing ice cold air at different rates. (That would also be consistent with the info in this thread that there is a small motorized flap that mixes air.)

Anyway, both of my MDXs (2006, 2015) do a great job keeping the cabin comfortable at the setting being used.


Sent from my iPhone using Tapatalk
 

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Saying my air conditioning doesn't feel cold is a waste of everyone's time because "feel" is subjective and unscientific. A laser temperature gun costs $20 at an auto supply store. Go buy one.

My MDX gets meat locker cold. Temperature comes out at 18F or -7C if I put it on low. However, I just set it to room temperature and never touch it. The odd time if I am too hot or too cold I do adjust the temperature in 1 degree increments. It is that good.
18F? How come your evaporator coil isn't a block of ice?
 

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Saying my air conditioning doesn't feel cold is a waste of everyone's time because "feel" is subjective and unscientific. A laser temperature gun costs $20 at an auto supply store. Go buy one.

My MDX gets meat locker cold. Temperature comes out at 18F or -7C if I put it on low. However, I just set it to room temperature and never touch it. The odd time if I am too hot or too cold I do adjust the temperature in 1 degree increments. It is that good.
18F? How come your evaporator coil isn't a block of ice?
If air didn't pass through the evaporator it will become a block of ice instantly.. Remember the heat exchange laws.
 
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