Cooper AT

depends on how old your car is, km,s etc. I had a new set of tyres put on the commodore maaate and they made a wheel bearing resonating sound at around 80km/h. I took the car to holden and they even replaced one of the wheel bearings under warranty! It just turns out the tyres were the culprit!

Leroy

No Matt they don't! I have Cooper A/Ts (75-series) and they're as quiet as H/Ts.
Have you been able to ascertain exactly where the "noise" is coming from?

Matt
My AT's are quiet.
Ian

Matt,
my AT's are quiet.
Unless you have something stuck in them, look elsewhere for your noise
Ian

Matt,

I had STs on a Pajero and they were noisy (like a whoooooooo noise). In fact when I picked the car up after the fitting I nearly took it back thinking something was wrong.

I know have them on a Patrol and they are quiet - perhaps I can't hear them over the diesel :-)

The STs make a noise like a diff whine at certain speeds.