Constant brake squeal (no braking)

[bhanelt]

Hi Everyone:
Two weeks ago I changed out the rear brake pads on my R53 (2005 S) with generic pads. Immediately the rear brakes started squealing while driving, without the brakes applied. I could temporarily stop the squealing by applying the brake or the emergency brake.
About 10 days later, I was convinced that the generic pads were to blame, so I replaced the brake pads with genuine MINI parts. Now the problem is worse and non-stop. I can make the squeal worse by aggressive cornering or hitting a low or high spot in the road. I can still solve the problem temporarily by applying the brake; but only for a few seconds.
Could my rotors need changing (both rears contain a lip on the very outside edge; normal?)? Could my calipers need lubing? Or, is it that the pads need to wear in?
Any help on this would be greatly appreciated!! Thanks!!

[The Nun]

When you fit new pads it always helps bedding them in if you roughen up the disc glazed friction surface with a bit of emery cloth.
There are areas on the back of the pads they tell you to apply a little anti squeal grease too such as copperslip

[bhanelt]

Thanks for the reply. I will try that.
I should also have mentioned that my fuel efficiency has plummeted by almost 20% since installing the new pads. I notice that when I push the car around in the garage, I can hear BOTH brakes scraping. Will this go away? Will my fuel efficiency come back once the pads are worn in?

[Tabintab]

sounds like the handbrake adjusters were not slackened off. How much travel on your hand brake now?

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Tab