- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Elta Automotive "EX0304" - Not available
VW - Sharan, Golf, Caddy, Vento; AUDI - A6, A4; SEAT - Cordoba, Ibiza; BMW - 3, 5; FORD - Escort