- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Delphi "ES20378-11B1" - Not available
VW - Passat, Golf, Transporter, Tiguan, Jetta; AUDI - A4, A5; SKODA - Octavia, Superb; SEAT - Leon, Exeo