AC Issues...Any ideas? 2016 CX-5

Hi everyone, new to the forum.

I'll start by saying that I am not handy. I just learned how to change my oil, I can replace headlights, engine/cabin filters, add coolant etc. and that's it. I have no understanding of the works of a car beyond that.

I have a 2016 CX5 with 94k that I have owned since 2018 and I love it dearly. It's had 0 issues and has been a wonderful vehicle.

I have always noticed that the amount of forced air for the conditioning of the vehicle seems less (as in, the stages from little to a lot of air don't seem to work well) but it has always gotten hot or cold when I needed it. I had begin to notice that it struggles to get cold quickly, takes 1-2 minutes of driving before you get super cold AC.

I bought a recharging kit w/ leak protection (if that even actually works) and used the gauge to see how much coolant it had. It was on the low end of "normal". I decided to add coolant and used basically the whole can - but the gauge never really seemed to jump much (which was weird). This was 1 week ago.

Yesterday I was driving it in town and the AC would go from bone-chilling cold to middle of winter hot and then back again. It would ping pong between the two the entire time I was driving. It did the same thing again this morning when I drove to work.

I recently drove a van that had the radiator fail and I experienced a similar phenomenon with the AC, but the Mazda's engine temperature light has never triggered to make me thing the engine was overheating.

Does anyone have any type of clue as to what is going on with my vehicle?
 
Be aware that you should always, and I mean always,totally evacuate an AC system and then charge it with exactly the specified amount of refrigerant. Now that you've added some, exactly how do you know the total amount in the system. Over charge like under charge has consequences that affect the overall system performance. As a DYI'r you can check the front condenser for debris build up, the cabin filters for air restriction and the interior fan operation for speed transitions. And don't forget the drain tube from the heater housing for restrictions that can prevent condensate from leaving the interior air box. As for getting the correct charge, leave that to qualified people. Frosting on the evaporator coil and lack of condensate drainage may well be your problem.
 
Open the hood and check the coolant overflow tank. Make sure it's between "L" and "F".
Also, check the cabin air filter, make sure it isn't clogged.

More than likely the system needs a recharge of refrigerant. It's 9 years old.
Take it to a professional.
 
Be aware that you should always, and I mean always,totally evacuate an AC system and then charge it with exactly the specified amount of refrigerant. ...
Meh. 🤷‍♂️ That *may* be the best way to handle an AC charge issue if you've got fat stacks of cash laying around to pay hundreds to get that accomplished. But a can or two of refrigerant less than $10 at Walmart *can* also keep you cool for a summer if the budget is tight and your car is old. Been there, done that. So I disagree with *always* .
 
I don't know what your experience is with other vehicles but expecting "super cold" before 1-2 minutes of driving is overly optimistic. Especially if the car has sat in the sun and the cold air has to cool down hot ductwork on the way to the vents. My 2014 still cools about the same with the factory charge. It never felt powerful even when new. I'm not the only one to mention this either on the earlier models. Don't know about newer models. The A/C in my old Buick would kick the CX-5's butt.
On the surface of what has been described so far, you were expecting too much and now overcharged the system by adding that can.
Looks like the A/C needs serviced professionally, and if you do, tell them about the "leak protection" because they may not want that 'stop-leak' additive gumming up their equipment.
 
You probably added way too much from the can. Have you installed a new cabin air filter that is more restrictive than the OEM ones? That can hurt air flow
 
Yesterday I was driving it in town and the AC would go from bone-chilling cold to middle of winter hot and then back again. It would ping pong between the two the entire time I was driving. It did the same thing again this morning when I drove to work.
Probably too much coolant and now the system is out of balance.
 

Similar Thread

New Posts

Back