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BMW 5 Series 520i Oxygen Sensor 11781742050, fits BMW 5 Series, OEM 11781742050, precisely controls air-fuel ratio, improves fuel efficiency.
Replaces OEM #
MOQ
1件
| Vehicle Model / Generation | Year | Engine | Specification |
|---|---|---|---|
| 5 Series(G30) | — | — | — |
Oxygen sensor for BMW 5 Series 520i (E60/E61 chassis, N52/N53 engines), OEM number 11781742050 (Bosch 0258003477), installed before and after the catalytic converter. It monitors exhaust oxygen content in real time and feeds signals to the ECU to precisely control the air–fuel ratio, optimizing combustion efficiency and emissions. Installation difficulty: medium; labor about 0.5–1 hour; avoid thread damage. If the vehicle shows power loss or emissions are high, check this sensor.
宝马5系520i氧传感器11781742050 0258003477 精准控制空燃比
11781742050