I have a '96 328i with about 180,000 miles on it. Lately, a considerably more noticeable "moaning" road noise has been apparent, especially when braking or slowing. Recently, I bought a cheaper make of new tires, but it's hard to imagine any tires could cause road noise like this. The brakes are also fine, done last year. I'm not that mechanically knowledgeable, but what does it sound like the problem might be? Would this be something to do with the wheel bearings? If so, is that a repair for a special (foreign car or BMW) mechanic, or can tire centers or regular mechanics do it?
Any opinions would be appreciated!