- 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 "LS140033" - Not available
VW - Golf, Bora, Sharan, New Beetle, Passat; SEAT - Alhambra, Leon; AUDI - TT, A3