The ESP and BAS warning lights may illuminate due to a failed brake light switch. Replacement of the failed switch should correct this concern. A recall on certain 2002 models have been recalled for a related issue - for more information please click here»Google+
Car Problem Reports
Mercedes-Benz ML500 Brake Light Switch Failure May Cause ESP/BAS Warning Lights
Mercedes-Benz ML500 Problem
Average Mileage: 138,166 mi (98,000 mi - 205,000 mi)
Visitor, 2003 Mercedes-Benz ML500, 136,000 mi
replace brake switch 15.00 item 10 min fix
Visitor, 2002 Mercedes-Benz ML500, 127,000 mi
bas/esp light came on one day while it was raining, stopped, shut off and restarted,light out. two days later came on and stayed on! so here I am!!
Visitor, 2002 Mercedes-Benz ML500, 98,000 mi
Could not put truck in gear. Warning lights.
Visitor, 2002 Mercedes-Benz ML500, 101,000 mi
no brake lights and ESP/BAS warning