Same problem for me!
We talk about in another post.
According to my dealer it is due to the parking brake. They tried some lubricant but it did not work at all. Also they asked me to drive with the parking brake on for few seconds to reset the pads. I do not feel confident in doing so.
They told me they can not do anything about it and if I cannot cope with it I should better engage a gear for parking...
I hate people watching at me when I brake, I could wake up the whole district when I brake...and I paid extra to have the m sport brakes