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Matt, Mechanical Engineer
Category: BMW
Satisfied Customers: 116
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Loud noise at 40 mph like being in a wind tunnel. Car then

Customer Question

Loud noise at 40 mph like being in a wind tunnel. Car then vibrates on deceleration
Submitted: 1 year ago.
Category: BMW
Expert:  Steve replied 1 year ago.
hello, where does the noise come from? is it wind noise or does it come from somewhere else on the car noticeably?
Customer: replied 1 year ago.
No it's not wind noise the humming is difficult to isolate but it starts at around 30 mph and gets louder at 40 mph I have had the bearings checked, the wheels balanced, transfer case oil changed and central bearing replaced but the car still also vibrates when you take your foot off the accelerator it does lessen when you press the clutch even when not in gear. However it vibrates so badly occasionally on decelerating that the car shakes as though something is stuck.