I have a 2015 A4, once I apply the Electrom-Mechanical Brake the light on the lever comes on and then the light in the dash comes on. These lights do not turn off after I cut the car off. In the owners manual it says that there should be a delay and the the lights cut off. Does anyone know the time frame of this delay. I just started noticing this after I had a backup camera installed. If the there is a delay and the lights should cut off, is there any way to fix this? Any thoughts