Iphone XS Max pair to BMW 645ci

Hi juhaszkaaa,

Thank you for participating in the Apple Support Communities. We understand you're unable to connect your iPhone to your car's Bluetooth. This article has some steps that may help: How to connect your iPhone, iPad, or iPod touch to your car - Apple Support.

"Learn how to connect your device to your car stereo.

Connect using CarPlay

Available on select cars, CarPlay is a smarter, safer way to use your iPhone in the car. CarPlay takes the things you want to do with your iPhone while driving and puts them right on your car’s built-in display. 

First, make sure that your country or region supports CarPlay and that your car supports CarPlay.

If your car supports CarPlay using the USB port, plug your iPhone into the USB port of your car or stereo. The USB port might be labeled with a CarPlay icon or a smartphone icon.

If your car supports wireless CarPlay, press and hold the voice command button on your steering wheel to set up CarPlay. Or make sure that your car is in wireless or Bluetooth pairing mode. Then on your iPhone, go to Settings > General > CarPlay > Available Cars and choose your car. Check the manual that came with your car for more information.

Learn more about CarPlay or how to set up and use CarPlay.

iPad and iPod touch don't support CarPlay.

Connect using Bluetooth

1. Restart your device.
2. Go to Settings > Bluetooth, and turn off Bluetooth. Wait for about 5 seconds, then turn Bluetooth back on.
3. Check the manual that came with your car for more information on how to pair with a Bluetooth device. Most cars require a phone setup on the car display. 
4. If you've connected multiple phones to your car stereo, try renaming your device: Go to Settings > General > About > Name, and type a new name. Then try connecting again.
5. Update your device.
6. Make sure that your stereo is using the latest firmware from the car manufacturer. Check your car's manual for more information.

If you still can't connect, contact Apple Support."

Take care.