Mercedes-Benz Nitrogen Oxygen Sensor A0009058011 SNS1005 12V Original Quality

Mercedes diesel engine nitrogen-oxide sensor (OEM: A0009058011) monitors NOx in exhaust and feeds ECU to optimize SCR urea dosing for compliant emissions. Fits W166, W205, W212 with OM642 or OM651 engines. Installation about 0.5-1 hour; route wires to avoid interference. Check engine light, abnormal urea consumption, or weak acceleration indicate sensor fault; replacement restores emissions control.