- 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 "LS140269" - Not available
VW - Passat, Golf, Polo, Caddy, Vento; AUDI - A6, A4; SEAT - Ibiza, Cordoba