My car has been making noises when I brake and turn at the same time (pretty low speed ~5mph). At first, I thought it was the suspension...maybe the bushings were worn. But it doesn't make any noise when I turn but don't brake (over the same turns). I was watching Motorweek, and the tech guy giving advice was mentioning that brakes needed "maintenance" every year beyond just checking the pads and rotors. It involved greasing up 2 locations on the brakes (I believe brake bushings was one of them) and that there were 2 specifics lubricants to use and not to mix the 2 up. Anyway, any detailed info on my Mercedes regarding the noise and the brake maintenence is appreciated. Thanks.