BMW Genuine Brake Hose Rear Personal_Accessories An acoustic signal through the 99120 53R00 000 An acoustic signal through the speaker and an indicator on the radio screen navigation system (depending on how the vehicle is equipped) keeps the driver informed about how much space they have For vehicles with multifunction for steering wheel (S249A) Brakes are the most important safety component of the vehicle and must satisfy extremely high requirements both legal guidelines as well as BMW's own high quality requirements BMW includes not only the most rigorous on road tests and computer simulations but also the checking of all elements and data for deviations even after the beginning of series production