What's the u3f00 trouble code BMW?

Code u3f00 in a BMW means that there is a problem with the air bag system. The purpose of an airbag is to help the passenger in the car reduce their speed in collision without getting injured. In some situations the passenger hits into the dashboard or windshield which acts as a force stopping them but injuring them at the same time. An airbag provides a force over time.Driving Your car without airbags is dangerous because, without fully operational airbags, the car safety features are down 50%. The airbags are a secondary safety restraint system that deploys if a car gets into an accident and prevents serious injuries to the occupants.