- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Delphi "ES20521-12B1" - Not available
MERCEDES-BENZ - C-Class, CLK, B-Class, A-Class, CLS; SMART - Fortwo; JEEP - Cherokee, Patriot