This is a warning that the brakes are in need of service soon. See your mechanic.
Replace the brake light switch would probably be a start. check the wiring and tcm
Start with the light sensor on the brake pedal arm.
2001 Mercedes-Benz M-Class brake light bulb lamp replacement procedure: Purchase the correct replacement brake light bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement brake light bulb information. Then consult your owner's manual for the replacement procedure. As simple as it sounds, the owner's manual is the best place to start for brake light bulb lamp replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
1999 Mercedes-Benz ML430 brake light bulb lamp replacement procedure: Purchase the correct replacement brake light bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement brake light bulb information. Then consult your owner's manual for the replacement procedure. As simple as it sounds, the owner's manual is the best place to start for brake light bulb lamp replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
1999 Mercedes-Benz ML320 brake light bulb lamp replacement: Purchase the correct replacement brake light bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement brake light bulb information. Then consult your owner's manual for the replacement procedure. As simple as it sounds, the owner's manual is the best place to start for brake light bulb lamp replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
2008 Mercedes-Benz C300 tail/brake light bulb replacement: Purchase the correct replacement tail/brake light bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement tail/brake light bulb information. Then consult your owner's manual for the replacement procedure. As simple as it sounds, the owner's manual is the best place to start for brake light bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
If the parking brake / emergency brake is on , or if the BRAKE FLUID LEVEL in your brake master cylinder in the engine compartment is LOW , and probably before you start the engine when you turn your ignition key to the RUN position just to make sure the bulb for the warning light works
unhook the battery for a few minutes,then reconnect. should work.
Your brake light ignition switch should be replaced. It works your brake lights and ignition switch, so you do need it. It only costs about $7 dollars.
To reset the service light on a Mercedes-Benz M Class, disconnect the positive cable on the battery for a few minutes. If this does not do the trick, turn the key on and pump the gas three times then turn the key off. Start the vehicle. The light should be off.
Start with replacing the bulb.
1986