When replacing the master cylinder on my '07 Merc GM, is there anything I need to know other than to bench bleed the master cylinder and bleed and flush all the wheel cylinders? I'm doing this because I get the brake problem light on the dash whenever I do a fairly hard stop (not enough for wheel slippage). The light will never come on after I'm stopped, no matter how hard I push the brake. BTW, this car has anti-lock brakes. Any other ideas for me to me to look into?