Used 2012 Mazda 3 P0069 and rear wheel bearing questions

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January-18th-2021, 09:15 AM

Newton Lemmon

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Join Date: Jan 2021

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Used 2012 Mazda 3 P0069 and rear wheel bearing questions

Hello, new owner here. Just bought this for my son and need a bit of advice. I've been through the Noob threads and see there's lots of good info there. I have two 2002 BMW E46's I work on a lot, so not unfamiliar with working on cars, just Mazdas!

Anyway, car has 123,000 miles and is in very nice shape. Engine bay very clean. Body super nice. Interior in amazing shape.

It did throw a P0069 and there is a LOT of noise from the rear wheels and I'm assuming those are bearings.

So, my question is, after looking at a number of posts about the P0069, what's the best way to tackle it since it could be a number of things? I'll definitely address the air filter first. Just looking for people's experiences tracking down the cause and how best to approach it.

As for the what I THINK is rear wheel bearings, can anyone let me know what else it might be?

Thanks very much!