- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- StartVOLT "VS-OS 2621" - Not available
BMW - 3, 1 (E81, E87), 7 (E65, WB), 5, 6; AUDI - A4, A3; ROLLS-ROYCE - Phantom; MERCEDES-BENZ - C-Class, E-Class