- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- FAE "77143" - Not available
VW - Golf, Bora, New Beetle, Jetta, Sharan; SEAT - Ibiza, Leon; AUDI - TT, A3; SKODA - Octavia; OPEL - Zafira A