with only constant speed abs/bas/esp lights come on

[tallatghazi]

Hi,
I have w210 E230 CDI, 5/10 times happens that when I drive with a constant speed without using brakes for like 2-4 minutes then abs/bas/esp lights come on. I reset them by rotating my steering wheel and switch off my car, and after 1 minute when I start the car, all goes fine. what could be the reason?

NOTE: Brake switch has been tested and its working perfectly fine.


Thanks
THG

 

[V12]

Are all your tyres the same size and correctly inflated?

Does it happen no matter what speed you're driving?

 

[Stratman]

I'd still say the brake light switch could be the problem. They do more than just turn on the brake lights and are cheap and easy to replace.

Failing that, try resetting the steering angle sensor. While the car is stationary with the engine running, turn the steering from lock to lock a couple of times.