[juzandbec]

Sorry if this is old news now but my understanding (read on a forum) of the clicking noise (click clack 6 times ) is the powershift transmission performing a cycling or reset of the gears.
I always wait to hear it now, count the 6 clicks for each gear and find it comforting that all is working in the powershift.
I also have the buzzing noise - for quite a while after I bought the car I thought it was a receding prop aeroplane until I parked in an underground car park and realised it was my car ��