My apple watch series 5 doe not work with bmw digital key

Greetings Mootymagic, 

We understand that you’ve added your car key to Wallet on your iPhone, but when attempting to use it with your Apple Watch you encounter an error. 

What does the error message say when you attempt to use the key with your Apple Watch? 

Are you using the steps in ‘Use your car key on your iPhone or Apple Watch’ from this article - Add your car key to Apple Wallet on your iPhone or Apple Watch?

Thanks. 

Mootymagic, 

Understood. We can recommend some basic troubleshooting such as: 

Restarting both your iPhone and Apple Watch, then trying again. 

Making sure iOS 15.3.1 and watchOS 8.4.2 updates are installed. 

If the issue persists, next would be making sure with BMW that Apple Watch is supported for your model, though we know your iPhone already is. Then reaching out to Apple Support if the issue persists - Contact Apple Support. 

Thanks. 

Mootymagic, 

Are you being prompted to add the key to your Apple Watch? We ask that because after adding your car key on your iPhone, it might be added automatically to your paired Apple Watch. 

Thank you.