Water slushing sound when braking (2016 CX-9)

[Rocket2247]

Hello. I have a 2016 Mazda CX-9. After driving for about 15 or more minutes, when coming to a stop, pressing the brakes, I hear a slushing sound like water or something in the front of my car. My coolant is full, brake fluid is full. Have had the rotors and pads replaced, and I am still getting that sound. Any advice? Took to a mechanic and they didn’t find anything.

 

[Silly Wabbit]

Air trapped in the coolant system? Did you ever get the coolant flushed?

 

[Odrapnew]

How are your air conditioning drains?

My wife's CX9 had a plugged drain and you could hear water sloshing around.
I used a bit of compressed air (one of those pump up sprayers without any liquid) and gave it a quick blast. I bet at least a quart or more came out.

 

[puma]

yeah that was a problem on gen1, don't know if the same problem apply to gen 2

 

[Buzzman12]

yeah that was a problem on gen1, don't know if the same problem apply to gen 2

Could be a problem on any vehicle with A/C, not just Mazda's. My old Nissan Pathfinder was prone to that happening.

 

[Rocket2247]

I’m going to attempt to look at the AC drain. Just thought it was weird that it only happens after I’ve been driving for a bit.

 

[CmazdaX9]

Unplug the drain tube for air condition usually between firewall and engine on left side facing front of car

 

[theblooms]

Look inside of your doors as well. I bet the drains at the bottom are clogged and rainwater is caught in the doors. Take a pick and try to clean them out.