- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Calorstat by Vernet "LS150064" - Not available
VW - Passat, New Beetle, Golf, Touran, CC; AUDI - A3, Q3; PORSCHE - 911, Cayman; SEAT - Altea, Leon; SKODA - Octavia, Superb