What Causes BMW Steering System Failures?

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Here are the reasons for BMW steering system failures: 1. Abnormal noise during steering: The cause of abnormal noise when steering is usually due to damage to the kingpin and bushing or failure of the thrust bearing. In such cases, you can turn the steering wheel left and right to locate the source of the noise for disassembly and inspection. 2. Steering gear oil leakage: Oil leakage in the steering gear typically occurs at three locations: the upper cover of the steering gear, the connection between the steering shaft and the knuckle, and the side end cover. This is usually caused by prolonged use leading to seal failure. Since these three parts are equipped with sealing rings, replacing the oil seals and sealing rings can resolve the issue. 3. Difficulty in steering wheel return: Most vehicles have an automatic return function for the steering wheel. If you need to apply the same force to return the wheel as you do when steering, it indicates a malfunction in the return function. This type of failure is usually found in the mechanical parts of the steering system, such as the kingpin and bushing being damaged due to lack of lubrication.