What are the causes of transmission system failure in the BMW 1 Series?

[LeLaila]

BMW 1 Series transmission system failures are caused by abnormal hydraulic transmission system speed, abnormal hydraulic transmission system operation, and abnormal hydraulic transmission system pressure. When abnormalities such as overheating, oil leakage, noise, or vibration occur in the hydraulic transmission system, do not rush to turn off the equipment. Instead, follow the principle of "first touch, second look, and third observation" to accurately determine the abnormal operating parts, and conduct system fault cause analysis and troubleshooting. Hydraulic transmission system speed abnormality: For faults caused by speed abnormalities, it is necessary to individually adjust variable structures such as throttle valves, relief valves, variable pumps, and speed control valves, then compare their speed range values with technical reference values for analysis. Hydraulic transmission system operation abnormality: For faults caused by operation abnormalities, it is necessary to observe the operating status of relevant system components, determine whether they are normal based on their operating status, identify the abnormal directional valve, and then check the travel control to locate the abnormal part in the hydraulic transmission system. Hydraulic transmission system pressure abnormality: To determine if the fault is caused by pressure abnormality, use a pressure gauge to measure the pressure values at the reserved pressure measurement points on the system pipeline. By analyzing the difference between the measured values and the standard values, the fault location causing abnormal hydraulic transmission system pressure can be identified.