Tongxinhuge-BMW F18 engine fault light elimination case sharing_Use car, Use car

Tongxinhuge-BMW F18 engine fault light elimination case sharing

August 15, 2024

The BMW 5 Series F18 has been in service for seven years since 12 years. As time goes on, there will be no minor problems with the body. However, this is normal. How can there be a car that cannot be driven, right?
Today, I would like to share with you one of the problems with the BMW F18 engine fault light: oxygen sensor fault!
If the oxygen sensor is reported to have a fault, it is not necessarily because it is broken. If the quality of gasoline is poor, it will also be reported to have a fault. Therefore, we must determine whether the oxygen sensor is damaged or find a professional repair shop for investigation!
When our engine goes out of the fault light, don’t rush to worry about whether the engine is broken. Maybe some functions related to the engine are affected.

Oxygen sensors are key feedback sensors in the EFI engine control system. They are key components to control automobile exhaust emissions, reduce automobile environmental pollution, and improve the fuel combustion quality of automobile engines. Oxygen sensors are all installed on the engine exhaust pipe.

The engine fault light is always on, and the engine does not have any adverse reactions when it is started. However, let’s not panic to conduct a diagnosis on the body first.

The computer will diagnose a report and tell us the maintenance staff what went wrong? This car is the oxygen sensor problem.

However, our body self-test system cannot see any problems. Look at the status, there is nothing abnormal!

The N52 engine is divided into front oxygen sensors and rear oxygen sensors. Two for each. How to solve the problem requires the experience of the master.

Through the engine compartment, you can see that the owner still cherishes this car very much. The engine compartment of the car has been very clean for so many years!

Over time, this car’s valve cover has a common problem of oil leakage. I won’t give a detailed introduction today!

Engine compartment oxygen sensor plug location!

There is a lot of rust on the exhaust screw that has not been removed for a long time. Be sure to pay attention when removing it.

After replacing the oxygen sensor, check whether the engine fault light is still there. Fortunately, the fault light has been eliminated.

Of course, after repairing an item, you must check the body for trouble codes.

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