[IggytheTiggy]

Light on the tach should be on showing it's disabled.

 

[IggytheTiggy]

No the button does not change colors. No need to as the dash indicates it. The PDC and Park Pilot buttons change as well as the off road button as it's the only indicator of it's status. Unless HDC is active when off road is on then s green icon lights in the tach.

And FYI even with ASR/ESP is off it's not totally off. In the event of total vehicle control loss it's still on just enough to assist. Only way to totally defeat it is if you have a DSG and the proper coding is out in. Then hold the button for 10 seconds, a chime sounds and a Traction / Stability control is Deactivated. Use caution. Not recommended doing this mod for a street car.

 

[IggytheTiggy]

And honestly if it was burnt out it probably would throw a code as it checks most everything on start.