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 2000-2002 models have been recalled for a related issue - for more information please click here»Google+
Car Problem Reports
Mercedes-Benz ML320 Brake Light Switch Failure May Cause ESP/BAS Warning Lights
Mercedes-Benz ML320 Problem
Average Mileage: 128,377 mi (58,000 mi - 213,000 mi)
Visitor, 2000 Mercedes-Benz ML320, 131,325 mi
My break light switch has failed twice. Once causing the break lights to stay on continually and BAS/ESP light to illuminate. And one causing the break light to fail and and the gear shifter to lock [safety feature:(]
Visitor, 2000 Mercedes-Benz ML320, 174,980 mi
Brake Lights don't work and ESP/BAS warning lights on. I will replace the Brake Pedal Switch next week and will report back if the problem is fixed.
I replaced the Brake Pedal Switch last week and my problem is solved - Thanks a million to the people in this forum.
Visitor, 1999 Mercedes-Benz ML320, 150,000 mi
ESP/BAS warning wont go away. I read is a electronic module which solder needs rectification.
Visitor, 2002 Mercedes-Benz ML320, 97,000 mi
esp and bas light on an loud noise
The esp/bas lights turned on and then the car would not like to move as if something is holding it back or locking it up.Going slowly it started running well as if nothing happened.
Visitor, 2002 Mercedes-Benz ML320
Every year I have to change the break light switch
Visitor, 1999 Mercedes-Benz ML320, 213,000 mi
Lights activated and cruise control would not engage. Replaced brake light switch and everything works fine. total cost around 15.00 DIY
BAS ESP light has been on since purchase..dealer where we purchased replaced brake light switch and light stayed on..Could the sensor be bad?>
Visitor, 2002 Mercedes-Benz ML320, 93,000 mi
The stealership wanted to replace one sensor or another, after charging me $200 to diagnose the issue. I decided not to do it. Turning off the car and turning it back on typically turns the light off.
Visitor, 2002 Mercedes-Benz ML320, 132,300 mi
Break lights stayed on for 1wk then now the esp&bas light is on and no brake lights and the cruise control doen't work when all this started.