Hey guys, my volvo has 70k miles and recently noticed a slight pull or clonk noise after releasing the brake pedal when car is running, its slight and noticed if i release gently it doesnt pull/clonk, other than that it drives beautiful , should i be worried, what could it be?

 

sounds like the parking brake does not fully release in some cases. Have the brakes been serviced recently or has this just started on its own?