Hello, I just got a 1990 BMW 535i (automatic) with 155k miles on it. But I noticed a feature on the dashboard called "ASC", I know it's a form of traction control, but so far I never seen it lit up, and didn't know if it's available on a 1990 E34 with the M30 engine. The car manual made no mention of it. I don't know how to verify if the feature works, never tried anything , don't wanna hurt my baby mind you... So I would like anyone to clarify for me on this matter. Anyone else have a 1990 BMW E34 with ASC feature? Please advise. Thanks!