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BMW TSB #B310719
2020 BMW M340i
TSB Document:
Affected Component: POWER TRAIN:AXLE ASSEMBLY
- Summary
- SERVICE ACTION: APPLY CAVITY WAX PROTECTION INSIDE THE FRONT AXLE SUPPORT: The corrosion protection applied to the inside of the front axle support during the manufacturing process may have minor coating defects. In individual cases this can lead to localized rust damage on the front axle support over the service life of the vehicle. Manufacturing process error.
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