Buzzing sound

Hello friends, when the car peugeot 307 is running at idle, when everything is normal 70 to 80 km, the sound comes from the car.

When he hears the sound, does it come when the car is thrown to the blank

may not be able to fully understand the sound, but may be related to the Clutch

the clutch ball makes a sound when it breaks down.

It was similar to me. I changed the ball of the rear two wheels.

If the humming wheel is in gear or idle while driving, the wheel ball can be a clutch ball or axle center bearing, as the friend says, if the clutch pressure is interrupted.