How do I switch on the Bluetooth for the BMW 5 Series?

Follow these steps: 

1. Make sure the Bluetooth on your phone is switched on. 
2. Tap on the Telephone icon on the infotainment screen as shown in the image below.

3. Tap on Bluetooth (telephone), then select Add new device as shown in the image below. 

Note: Not all phone models work for the BMW 5 Series's Bluetooth connection.