BMW 7 Series oxygen sensor 11787512973 0258005298 factory parameters identical

If your BMW 7 Series shows rough idle, abnormally high fuel consumption, exhaust emits black smoke, or engine fault light frequently on, this often indicates aging or failed oxygen sensors that cannot accurately monitor exhaust oxygen. The sensor outputs real-time air-fuel ratio data to the ECU to ensure full combustion, emissions compliance, and maintained power. OEM number 11787512973; compatible with BMW 7 Series (F01/F02 chassis). Installation notes: work only with the vehicle cold, clean threads, apply anti-seize, and torque per OEM standards to avoid over-tightening and sensor damage.