[vy_mr2]

After owning my CX-3 GT for a few hundred kms, a vibration developed and is constant from 40 kmph and up. It is felt through the steering wheel. It does not get worse but is always there. It is occurring on both the stock 18 inch wheels and 16 inch winters. Mazda can not find anything wrong. It has been in twice. They tried balancing, checking alignment and everything was good. I'm getting frustrated with this... first new car and problems within a month of ownership. Any opinions, thoughts? I like everything else about the car but feel if a resolution is not in sight, I'm going to take the car back and give them the keys.

 

[anchorman]

After owning my CX-3 GT for a few hundred kms, a vibration developed and is constant from 40 kmph and up. It is felt through the steering wheel. It does not get worse but is always there. It is occurring on both the stock 18 inch wheels and 16 inch winters. Mazda can not find anything wrong. It has been in twice. They tried balancing, checking alignment and everything was good. I'm getting frustrated with this... first new car and problems within a month of ownership. Any opinions, thoughts? I like everything else about the car but feel if a resolution is not in sight, I'm going to take the car back and give them the keys.

Sorry, I missed this yesterday.

Welcome to the forum.

Hmmm, strange one this. I'd love to have a look around your car as I'm dead curious. It's obviously something out of balance if it effects both sets of wheels. Does it do it worse if you press the brake? It is possible for brake discs to be out of balance but Mazda tend to use really good quality stuff. I wonder if a drive shaft is bent. I think I'd get it up on a wheels free lift with everything rotating and just have a close look. It should be obvious.

 

[vy_mr2]

No pulsations or vibrations under braking. This tells me the rotors are not warped or damaged as well as brake pads.
The Mazda dealer has been over it twice and nothing. They checked alignment, balance tires, motor mounts etc and nothing. I asked about the drive shaft. They saw no signs of issues. I assume I would have to go to a transmission shop to have balance of shaft checked. I'm guessing that requires removal.

 

[anchorman]

No pulsations or vibrations under braking. This tells me the rotors are not warped or damaged as well as brake pads.
The Mazda dealer has been over it twice and nothing. They checked alignment, balance tires, motor mounts etc and nothing. I asked about the drive shaft. They saw no signs of issues. I assume I would have to go to a transmission shop to have balance of shaft checked. I'm guessing that requires removal.

You wouldn’t necessarily feel an out of balance brake disc under foot. What do you think it might be?