Mercedes-Benz
ML320
108

Brake Light Switch Failure May Cause ESP/BAS Warning Lights on Mercedes-Benz ML320

Problem Description and Possible Solution

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»

Problem Data
RepairPal Verified
Average mileage: 136,966 (44,000–230,000)
6 model years affected: 1998, 1999, 2000, 2001, more2002, 2003
108 people reported this problem
Comments
Viewing 1 - 20 of 58 comments
ESP, BAS and brake lights come on while driving. Shuting off the car and restarting solves the problem for a while. Any guidence!!!
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.
ESP/BAS is on since I had some work done on my 2002 ML320.The battery had to be disconnected at the time,but now the light won't go out.Why?
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:(]
esp and bas light on an loud noise
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?>
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.
ESP/BAS warning wont go away. I read is a electronic module which solder needs rectification.
Every year I have to change the break light switch
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.
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.
There is a chime bell that remains on when in gear. The brake light is also stuck on as well as another light. Cannot remember. Will ask husband.
ESP/APS Brake lights on. Car Accelerated on its own. Brake Break lights no longer work. I was told it was the ESP Stop lamp switch
Please note: Mercedes has now admitted fault that brake switch fault was overriding ability to allow breaks to function and are recalling approx 134,000 units - might want to check into it.
Lights activated and cruise control would not engage. Replaced brake light switch and everything works fine. total cost around 15.00 DIY
ESP/BAS lights came on and need to use BIc pen to release shifter from park position. I have also noticed a issue with the cruise control not disengauging when I apply the brakes. I never had this issue until the brake switch failure.
Bake Light Switch Failure May Cause ESP/BAS Warning Lights on Mercedes-Benz ML320
I have already had to have the brake switch changed twice and now it seems the pump is sticking but the same lights are coming on.
brake light malfunction the day we bought it in 2006 - service engine light going off and on since 2006 and ESP/BAS light - Shuddering engine car takes off from a complete stop -
hAVE TO REPLACE OFTEN DUE SWITCH INTERNAL CONTACTS STUCKS. sTOP LIGHTS ALWAYS ON