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What is the tutorial for changing transmission oil in BMW 5 Series?

1 Answers

EliasLee

07/30/25 6:31am

BMW 5 Series transmission oil change steps are as follows: 1. First, manually remove the transmission oil pan drain plug to drain approximately 4L (collect with a measuring cup). 2. Remove the original transmission oil pan and clean the contact surface thoroughly for reinstallation. 3. After cleaning the oil stains, install the transmission oil pan. Note that the most proper way to tighten the oil pan screws is to use a torque wrench and tighten them in three stages. 4. Manually refill the transmission with nearly 4L of new transmission oil (drain how much, add how much) to ensure the proper oil level in the transmission. 5. Pour the remaining new oil into the transmission oil circulation machine, and connect the oil outlet and return pipes using the ZF 8-speed dedicated adapter. After connection, ensure that the connections are secure. Since the circulation machine operates under pressure, checking is necessary to avoid waste or accidents caused by loose pipes. If oil spills on the ground, it can easily cause slips and falls. 6. Finally, the most crucial step is to check for any oil leaks or seepage from the oil pan, and use BMW's dedicated diagnostic computer to verify that the transmission oil reaches operating temperature and measure the oil level. If no abnormalities are found, the process is complete.

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