Advice on acceleration noise please
 

Good Day.

Getting a clicking noise at light acceleration around 1600 RPM. Dealer has not been helpful so far.
Sound reminds me of the days of old when using too low an octane gas.

Also getting annoying squeel from front brakes when wet or cold at first few applications. Dealer says normal ?

M3 Sport 2.3 2007

Thanks a lot for replies ! Fud