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What are symptoms of a failed BMW eccentric shaft?

12-16,2024

Once a BMW eccentric shaft fails, it will cause a series of problems including engine vibration in idle status, fault indicator lighting up for alarming, and even engine flameout and difficult startup.

Vibration in idle status:

Symptom: The engine exhibits significant vibration or instability during idle operation.

Cause: A malfunction of the eccentric shaft may lead to uneven ignition and combustion in the engine cylinders and consequently instability in idle status.

Fault indicator lighting up:

Symptom: A fault indicator on the dashboard (such as the engine fault indicator) lights up.

Cause: The engine control unit (ECU) detects abnormal signals, or the reading is outside the normal range, indicating a problem with the eccentric shaft or other components.

Engine flameout:

Symptom: The engine suddenly flames out when the car runs or stops and waits.

Cause: A malfunction of the eccentric shaft may cause the air supply system to be out of control, result in poor fuel supply or air flow, and lead to engine failure.

Difficult startup:

Symptom: During the startup process, the engine RPM is low, making it difficult or even impossible to start the engine.

Cause: A malfunction of the eccentric shaft may affect the compression ratio or ignition timing of the engine, preventing it from starting properly.

Insufficient power:

Symptom: There is a lack of power and slow response during acceleration.

Cause: A malfunction of the eccentric shaft can directly affect the power transmission of the engine and cause insufficient power output.

Abnormal noise:

Symptom: Abnormal noise is heard during engine operation, such as knocking sound.

Cause: The wear or looseness of the eccentric shaft causes friction between components, and leads to in abnormal noise.

Higher fuel consumption:

Symptom: The fuel consumption of the car increases abnormally.

Cause: A malfunction of the eccentric shaft may reduce combustion efficiency, and consequently more fuel is required by the engine to maintain normal power output.

More violent vibration:

Symptom: The car body vibration increases significantly while driving.

Cause: The imbalance of the eccentric shaft results in uneven power transmission and more vibration of the car.

vika BMW eccentric shaft repair kit

Advantages of vika BMW eccentric shaft repair kit:

1. The top cylinder motor of vika BMW eccentric shaft is a product from Johnson Electric. The worm is subject to hardness treatment that leads to higher hardness and wear resistance.

2. Forged steel materials are used to ensure uniform hardness of vika BMW eccentric shaft.