- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- StartVOLT "VS-OS 1802" - Not available
VW - Golf, Passat, Caddy, Touran, Jetta; SKODA - Octavia, Superb; AUDI - A3, A6; SEAT - Leon, Altea