In your late model BMW’s instrument panel, there are 16 different electrical control units in the passenger compartment.
And you will be aghast as to why your alternator or battery has used up it’s useful life? The amount of the electronics in your BMW, MINI and most other brands of vehicles is growing significantly every year. Mechanical functions that in years past, were somewhat basic, are being replaced or assisted with electronics. Taking your car to a quickie, cheap brake place? Well, those days are almost over. Your brakes are going electric, if they haven’t already.
Drive by wire, brake by wire, (as called generically), etc….it’s only going to get more exciting! Stay tuned.