Need advice on humming and clicking

[offshore]

Hey all,

My 2007 200 series recently started humming when I hit about 60mph. The volume peaks at 72 mph, then quiets down around 80. I haven't changed tires or made any other changes.

Also, around the same time, I noticed a clicking sound at low speeds - 10-15mph - which I can only hear when I have passenger side windows down. It sounds like pebbles stuck in the treads clicking on the asphalt, but after inspecting, the treads are clean.

Any suggestions?

 

[josharre2000]

Possible typo?

2007 = 100 series

2008 = 200 series

 

[offshore]

Uh, yes, 2008. Thanks.

 

[Desert Nomad]

I would get it checked out at a dealer or reputable garage in case it gets worse.
Regarding the humming the most common I've heard of is it could be the differential. But actually once had the humming and turned out to be a bearing.