St fiesta vibration between 2.5 and 3k revs

[Tucka92]

Hi all,

Picked up my new st last week all was fine been doing a bit of driving, everything feels great however after around 400 miles on the clock between 2500 and 3000rpm there is a audible vibration sounding like it's coming from the engine bay (most noticeable in 4th), the car feels fine there is no physical issues. Was just wondering if anyone knew what it could be (or if this is a common issue) before I take it back to the dealer to see if they can find it. 

Thanks, Mike

[E5GDM]

Could be the wheels need re balancing.

But get it back to fords as soon as you can.