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BMW X3 F35 2017 Differentials and Transfer Case Fluids

Moman62
in BMW X3 Series Forum

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Hello.

I have a 2017 X3 3.5XI with the M-sport package which has 55,000miles on the clock. My BMW dealer recommends I change both front/rear diff and the transfer case fluids. I only drive 3000 miles a year in this vehicle now I'm semi retired. I'm not experiencing any problems with any of these components; gear changes/all wheel drive functions are still smooth and quiet; no vibration etc. What are your recommendations on flushing/replacing fluids/oil based on vehicle age and the amount of use they get based on your own experiences? Thank you.

Moman

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