- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- RECOFICIAL "CSL2266" - Not available
VW - Passat, Golf, Touareg, Jetta, Transporter; AUDI - A4, TT; SEAT - Altea, Leon; SKODA - Octavia, Superb; PORSCHE - Cayenne