Juice24

My BAS/ESP light keeps going on and off. It seems to turn off after I restart the car after I've been driving for 20 min. I have two questions... 1) is it possible that the battery can still start my car but weak enough voltage to set off my light? And 2) I've read in my owners manual when your BAS/ESP light is on you lose power... do you lose horsepower? Or just your bas/esp?? PLEASE HELP!!!!

99MBSport

have you also lost your cruise control.......check don't assume it works ? If you have NO cruise you need to change your Brake light switch. Will take care of light, The B/L switch is the gremlin for loads of light problems

Juice24

Thanks 99.. ill check to see if my cruise control works.. I'm hoping its that switch rather then the battery or alternator since its cheaper. Do you know if you lose horsepower when the light is on?

Juice24

So if my cruise control works does that mean its not the brake switch? I haven't tried yet since I'm still at work but just curious.

Juice24

My cruise control still works dos that mean my brake light switch is still good?

99MBSport

Ya brake light switch is OK.... Check forum for BAS/ malfunctions

GUDA

Got a 2000 C230K the BAS/ESP is on have tried all the tricks even replace the BL switch after a day the lights is back on. Jst wish our cars cld jst drive without all this electrical buzz!!!

JohnnyRock

Do a search for, "BAS or ESP light on". There is a way to reset the module, especially if you replaced the sensor. It involves turning your steering wheel left-to-right, lock-to-lock.

GUDA

Have tried all that steering tricks 2... Same old same. And lately at 80 to 90km/h when I step hard on the brakes I get this redicoulus stering vibration like I was in a ditch. Dnt know wat wrong.