- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- BOSCH "0 258 007 221" - Not available
AUDI - A4, TT, A6, A3, S6; BMW - 3, 5; MERCEDES-BENZ - C-Class, E-Class; PORSCHE - Cayenne
Additional numbers
BOSCH:
17221
LS7221
LSU-4.2