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Should the Oil Pan Be Replaced When Changing Transmission Oil for BMW?

1Answers
Barbosa
07/29/2025, 01:51:07 AM

When changing the transmission oil for a BMW, the oil pan should be replaced because there is a filter screen attached to the inner side of the oil pan. The filter screen cannot be removed and can only be cleaned. If not replaced, it will cause the viscosity of the transmission oil to increase over time. Transmission Oil Replacement Interval: Generally, it should be replaced every 40,000 to 60,000 kilometers. For automatic transmission oil, it is recommended to replace it every 60,000 kilometers. Symptoms of Dirty Transmission Oil: If you notice increased fuel consumption, sluggish acceleration, or delayed gear shifting while driving, it is advisable to perform maintenance. Consequences of Not Changing Transmission Oil: The transmission oil may contain a lot of iron powder and debris, which significantly reduces the lubrication performance of the transmission, leading to severe wear. For most vehicle models, this situation occurs if the transmission oil is not changed for over 100,000 kilometers, so replacement is recommended.

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