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Discussion Starter · #1 · (Edited)
I have a 2023 Turbo premium with the 20" rims.

At lower speeds (like under 35mph), over rough roads, the front suspension is loud. I get a strong 'thunk' sound over those surfaces. A loud thwack. Not metal on metal; it's just loud. I've not experienced it on any other vehicle I've had. It's very apparent when you are on those rougher, bumpy, roads.

I actually replaced the OEM tires with a 50 series tire - OEM is 45. The idea was to put more rubber between the road and rim - soften it up. The ride is more smooth, but that noise is still very apparent. I have 18" rims and snow tires going on in two weeks - that will be a 60 series tire; so, even more rubber between the rim and the road. But, I doubt it solves it. It really sounds like the suspension isn't isolated enough from the cabin.

Is this an issue isolated to my vehicle, or is anyone else experiencing the same thing?
 

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Just not enough sound deadening in the cx50.. you hear the road and suspension more than in other vehicles and the suspension is overly firm and bumps really crash thru hard in this vehicle especially with the 20s but almost just as bad with 17s. One of the many reasons I dumped mine and got into a 23 cx5 sport design turbo. Such a better built vehicle than the cx50. Cx50 seems to be the start of Mazda really showing its cost cutting and the build quality of these coming out of the Alabama plant is sub par compared to mazdas built in Japan
 

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Discussion Starter · #3 ·
I just drove another one with the 20’s and it’s completely silent on the exact same roads I drive on. I took it down the same road that mine makes noise on. Something is off. Have an appointment for 12/5 to have them take a closer look…
 

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Yeah then you may have a suspension issue. The issue I had with mine which was a gsl model non turbo with the 17 inch wheels was what sounded like wheel bearing noise or stuck in a higher gear mostly noticeable on the hwy. Took it to two separate dealers both saying it was normal. Sounded like I had mud tires on it. They hoisted it and everything was tight and said it was a normal characteristic of the vehicle. I had just traded in a 22 outback wilderness with all terrain tires that was much much more quiet than the cx50. I will never know what was wrong with that cx50 but it was the loudest vehicle I had ever owned on the hwy and I've had many trucks with all terrain tires. I basically just gave up because the Mazda dealers were useless. I traded it back. Lost 2k but also lost the headache of that vehicle. It just felt very cheap to me. I did also test drive a non turbo unit with the 20s on it and it was loud as well. The cx50 is not a quiet car.
 

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Sad to hear your issues. I have owned my 50 Premium Turbo five+ months now, and I am a Toyota guy traditionally, and mine has had no issues and is quite quiet on any roads, wife really likes it. It is a firm ride yes but have been very happy with it and at this point continue to give it a thumbs up. I would describe driving it as a combination of of an SUV and the handling more like a sports car.. in one word FUN. Maybe not for everyone but as with Mazdas of recent it has great driving dynamics. People seem to forget the lower profile 20“ wheels provide for better handling on roads, cornering and frankly towing but may give up some dampening on bumps. I recently rented a decked out 22 Toyota Camry and was surprised how much louder it was than my 50 turbo and rather boring to drive.
 

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I have the noise as well. I noticed it shortly after driving it off the lot. Now that I’ve lived with it for a few weeks and I see that others are hearing the same noise all I can think is that it’s due to excessive rebound damping. Too much damping will cause the tire to reconnect with the ground too slowly on the backside of a sharp edged bump (like coming off a fresh layer of pavement or going into a pothole). That delayed reconnect will cause a slap when the tire hits the ground.

I’ve not taken it to the dealer.
 

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Discussion Starter · #10 ·
I took it to the dealer today. I drove another exact model and it made NO noise. The tech heard it and said it's not right. I have an appointment on 12/5 for him to dig into it. Keep you all posted....
 

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Discussion Starter · #12 ·
Thanks! My local dealer is 30 min away and I didn’t buy from them so I’m holding out until someone can figure it out.

By the way, your explanation makes sense and is described well. The tech did tell me he's had issues with the CX9 that were similar - around the cowling and bolts being loose. I plan to check mine, tomorrow, as well as the top of the strut mount in the engine bay.
 

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Discussion Starter · #13 ·
I ended up driving yet another CX50 today, with the 20's. No noise, at all, over the same road surfaces I drive mine on. I took it over the same loop. I just hope they find something to replace/tighten to fix it. Otherwise, it turns into a battle of - 'that's a normal condition' for the car. Fortunately, I have a few examples to prove otherwise. ;)
 

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I ended up driving yet another CX50 today, with the 20's. No noise, at all, over the same road surfaces I drive mine on. I took it over the same loop. I just hope they find something to replace/tighten to fix it. Otherwise, it turns into a battle of - 'that's a normal condition' for the car. Fortunately, I have a few examples to prove otherwise. ;)
Thanks for the update. Sounds like I should take mine in for a look.
 
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