See also:

Active Noise Control (ANC)
By identifying undesirable sounds in the cabin and then playing back through the speakers sound waves of opposite phase, the original noises are cancelled out, making the M's interior a quieter, m ...

VQ37VHR engine
Use unleaded premium gasoline with an octane rating of at least 91 AKI (Anti-Knock Index) number (Research octane number 96). If premium gasoline is not available, unleaded regular gasoline with an o ...

Dual head restraint DVD system (if so equipped)
If your vehicle is equipped with the Dual Head Restraint DVD System, you can enjoy playing video files via a DVD, CD or USB memory that provides images and sound both from the front and rear display s ...