You take your foot off the brake pedal.
TAKE YOUR FOOT OFF THE BRAKE!!! If your brake fluid is low the brake light will be on, there is a float inside the brake fluid reservoir, after you fill it up, if the light is still on take the cap bake off of the reservoir and make sure that the float is floating, if it isn't wiggle it around with your finger and it should pop to the top.
The light assy has to come off and there a couple of screws you get to from inside to remove the light.
The brake light bulbs ar removed from the rear of the light assy . Take it off of the body.
you have to take off the panel that is covering around the brake and then you will see the brake light switch on the front side of the brake you can just simply turn it left or right and that will adjust it
It should go on when the brake is on and off when you release the brake.
When you open the hatch back there are two screws, take that off and then pop off the light cover and it is there.
There are several reasons why the dashboard brake light won't go off on a 2000 Mercedes ML430. One reason could be a short in the wiring system. If your light is off you should take your car into a mechanic to have them look at it.
you ask it to stop
take panels on the inside of the trunk off and they should be right behind the taillights 3rd brake light is on the bottom of the back dash
Try adding brake fluid to the reservior for a simple fix (take off neg. battery terminal to void light). If not that, could be brake pad is low or sensor issue.
you need a new brake pressure differential switch