- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- NGK "90517" - Not available
AUDI - A4, A3, A6, Q7, TT; VW - Passat, Transporter; SEAT - Altea, Leon; SKODA - Octavia, Superb
Additional numbers
NGK:
OZA723-EE66