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What are the causes of abnormal transmission in BMW cars?

1 Answers

EvanLee

07/29/25 8:04am

Here are the reasons for abnormal transmission in BMW cars: 1. Transmission control program issues: Reprogram or upgrade when no obvious faults are found and no fault codes appear in diagnostics. 2. Transmission fluid problems: BMW recommends changing the transmission fluid every 60,000 to 100,000 kilometers. If the vehicle is within this mileage range and experiences this issue, replacing the transmission fluid is advisable, regardless of whether it is the root cause. 3. Power circuit issues in the transmission control module: For example, poor contact between fuses and fuse sockets in the wiring can easily cause the socket to burn out or melt, leading to intermittent dashboard warnings of 'transmission abnormality.' Loose transmission grounding may also contribute to the issue.

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