I have a 1998 C230 with 180K. At random the yellow light on the left of the dash comes on showing the BAS,ASR and the ABS light below them. Again, all three come on. This happens after driving a few minutes. If I stop and turn the car off, the light goes away. But, it comes back on the following day or sometimes three days later after driving. Sometimes it comes on when I start the car other times when I'm driving. Sometimes it may take several weeks for it to come on. But lately it has come on more frequent. I replaced the brake light switch a year ago and the front brakes are new. I searched the forum and a few possible causes came up: 1-brake light switch; 2- brake sensors; 3-speed sensor.
Questions: Does anyone know what could be causing all three (BAS,ASR and the ABS light) to come on? Have anyone on this forum had this problem? If so, what did you do to fix the problem?

Thanks,
JS

 

I have the same problem except the lights come on as soon as I start the car and put it in gear. I have 99000 miles on an 03 c230 and just replaced the front brakes, sensor and rotors. Any reccomendations would be appreciated.

 

need to have it diagnosed 99% stop lamp switch will be the fault...

 

Thanks for your response NAZ. I did not have any issues until I replaced the brakes and rotors. I had broken the screw trying to remove the rotor. I had to pull the bearings and drill out the broken screw. Could I have messed up by pulling the rotor? I don't think I damaged anything else. Could it have anything to do with the wear sensor? I appreciate all your help.

 

I have just replace the brake light switch due to the bas/esp/asr.... lights being on all the time.

My lights are still on. What else can I do.

 

Just to update, I took my car to a repair shop. I didn't know it but when I was removing the rotor from the hub, I damaged the hub with a few marks (dents). This caused a series of bad readings from the one speed sensor. Problem is all fixed with a new hub.

 

Were you able to fix the problem? If so, what was it and how did you fix it?