How to turn on the BMW 5 Series welcome carpet light?

There is a light switch under the left side of the vehicle dashboard, which can also be set on the vehicle computer. The following are: 1, BMW: BMW is a German automobile brand under the BMW Group. It has four models, I, X, Z and pure digital, 1, 2 and 3 series, and the M series (official high-performance modification department of BMW) improved on the basis of each series. 2, welcome blanket: BMW original Angel Wings welcome blanket Every time the owner enters and exits the vehicle, the area next to the door will be illuminated by lights, forming a blanket-like effect, which makes the owner get on and off more ceremonial and makes the life inside the car more attractive.