- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Metzger "0893657" - Not available
VW - Golf, Passat, Caddy, Polo, Beetle; SKODA - Octavia, Superb; AUDI - A3, TT; SEAT - Leon, Ibiza