- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- LEMARK "LLB442" - Not available
VW - Golf, Passat, Bora, Polo, Phaeton; AUDI - A4, A6; SEAT - Ibiza, Inca; BMW - 3, 5; ALFA ROMEO - 156, 166; CITROËN - C4, C5