Mercedes-Benz GLA212 Front Oxygen Sensor 0258017203, precise air-fuel ratio monitoring KLP specification replacement part

BMW G30/G31 2010-2018 G-Class? (Note: original item describes GLA front O2 sensor) For GLA212 front oxygen sensor located before the pre-cat, key to closed-loop air-fuel control. OEM code 0KLP replacement part; real-time monitoring of oxygen and feedback to ECU for precise injection. If idle unstable, weak acceleration, or engine fault light on, sensor signal distortion likely. Replacement difficulty medium; estimated 0.5-1 hour; avoid thread damage; replace to restore accurate AF control and burn efficiency.