03-26-2024, 06:23 PM | #1 |
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330i Transfer Case Problem
Hey this is my first post here since I can’t seem to find an answer after searching through a bunch of forums. I have a 2018 F31 Xdrive. I bought the car used at 50k miles. I noticed everytime I would put the car in drive or reverse there would be a vibration sound in the transmission/transfer case area.
I jacked the car up and checked the rubber mount on the transfer case which was very torn up so I know I already need to replace that. (Might as well do the engine mounts as well). Also saw some cracking on the flex plate so I’ll be replacing that as well. I had read on a lot of forums about the transfer case output flange wearing due to rotational vibrations and doing the loctite mod to prevent it. Now, all these forums I had read were on the diesel models. Should I replace the output flange with a new one and then loctite it on or will replacing it with a new one affect how the splines on the output shaft wear? Or did bmw fix fhe issue with the updated all rubber flex plate? I haven’t pulled off the flange yet to inspect it for wear but if I see little to no wear i’m thinking of just reusing it and I’ll loctite it on. T case is the ATC 35L & date stamped on it is 7-20-2017 Am I being too paranoid about this issue being as it only affected older desiel models? Should I just swap the flex plate and t case mount? I know the both types of 4 cylinders have vibration issues so I just wanted to see what you guys think. Thanks! Link to one of the threads regarding this issue. https://f30.bimmerpost.com/forums/sh....php?t=1579087 |
06-28-2024, 07:25 AM | #2 |
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It's great that you're addressing the vibration issues in your 2018 F31 Xdrive by planning to replace the torn transfer case mount, engine mounts, and cracked flex plate. Inspecting the transfer case output flange for wear and potentially using Loctite as a preventive measure sounds like a prudent approach to ensure your vehicle's long-term reliability.
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