- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- LEMARK "LLB543" - Not available
VW - Passat, Golf, Touran, Jetta, Touareg; AUDI - A3, Q7; SEAT - Leon, Altea; SKODA - Octavia, Superb