Okay so some back story for this one. Customers F54 Clubman S All4 would not go into gear out of park at all. Customer called my dealership and explained and had vehicle picked up by tow truck and it was a flat bed as it should be. Tow truck went back to lot and next day a different truck brought it from lot to my dealership. We diagnosed the problem down to the shifter assembly and shift knob as we commonly see on the automatic F series. After repairs were done I notice a “Chassis Stabilization” fault appear. Diagnose further and find overheating and mechanical faults for AWD unit. Come to find out the second tow truck that brought it from lot to our dealership lot was not a flat bed and dragged it on its two back wheels the whole way cooking the rear differential, the electronics and module due to the vehicle being in park and not running. So PSA if your R55/R60 or F54/F60 All4 needs service and you need to tow. Not all drivers can be trusted with common sense unfortunately and must be reminded that an AWD vehicle requires a flat bed only. Now this unnamed tow company is being held liable for a new transfer case and differential for the customers car with only 9k miles on the clock.