I have a 1998 M3 Convertible, 77K miles.
I have an intermittent problem with the ABS and ACS lights.
Sometimes I start the car, drive off no lights - great.
Other times I start the car - no lights - start to drive off and the both come on and stay on !!
By the way when the ABS light is on I do not have ABS - trust me I've tried it
I'm thinking faulty wheel speed sensor but looking for anyone who's had the same experience.