My 23 Turbo has the exact same noise, however a little less loud. So far I've taken it four times to two different dealers and Mazda has deemed it as normal operation. Mine has less miles than yours (10K), but pretty much started noticing it at 1.5k miles when I first took it to the dealer for inspection.Have had the car for little under a year and recently it’s been starting to make a whining noise while driving. My worry is that the noise is constant and not just on acceleration/deceleration. Any ideas?
Ok, thank you. We figured it might be a transmission problemIf you do a search on this forum you'll find quite a few people over the years going back to 2014, including me, have had this problem and have had our transmissions replaced under warranty.
Hence why it is they replace the entire trans and don't do a repair. So, basically can happen to anyone with this transmission, doesn't matter what year?The issue is the bearing in these pictures. It goes in the center case of the transmission and splines into the output gear of the transmission and it helps support the geartrain. If any debris gets inside them it can grab the roller surfaces and pit the bearing. Because the transmission output gear is directly supported by the bearing it will make noise as the vehicle speed increases. The bearing is put in place and partially integrated into the surrounding case. There is an aftermarket process that you can sleeve the case and install a new bearing or you purchase a new case half from Mazda.
The first two pictures are the center case where the bearing is, on one side is the output gear, the other is the bearing in the case.
Third picture is the part of the planet the output gear slides over.
Last picture is the bearing itself, pitted rollers and damaged race.
So, a more aggressive fluid change schedule would lesson the probability of this happening?Yes it can happen to any year and any model. I don't see the failure often but it can happen.
With regular (30-40K) fluid changes, is it necessary to change the filter or does the filter just catch the bigger particles. If filter change makes a big difference then at what mileage would you consider to be the maximum.I am a proponent of changing fluids in vehicles, personally I like every 30- 40k miles if you plan on keeping the car. The clutches used in the Skyactivs make a fair amount of debris because of the high carbon content in some of the clutch sets. I'm seeing valve body wear more common in the Skys lately causing failure and fluid is cheaper than an overhaul.