- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Bugiad "54039" - Not available
VW - Passat, Golf, Bora, Transporter, Polo; AUDI - A4, A6; SEAT - Leon, Alhambra; SKODA - Octavia; CITROËN - C5, Xsara