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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N47 and N57 Turbodiesel Engine / Drivetrain / Exhaust Modifications > Transfer Case Failures Database
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      01-10-2019, 02:29 PM   #89
opinion914
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Originally Posted by jseeey View Post

Iím also trying to find 2 more 403mís to run either 8Ē all around or 8.5Ē all alround, pending what I canít find...
I too am currently looking for someone to swap 403M's. I'd most likely stick with the 8" units and swap out my 8.5"ers. I know Tx is a hike from NY but if you (or anyone else) want to explore this swap further, let me know.
Kevin
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      01-22-2019, 04:22 PM   #90
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I too am currently looking for someone to swap 403M's. I'd most likely stick with the 8" units and swap out my 8.5"ers. I know Tx is a hike from NY but if you (or anyone else) want to explore this swap further, let me know.
Kevin
Unfortunately I don't have the 403M's anymore to do any trades to make a square set. It was a long drawn out process to get all my warranty work done (negotiating between my 3rd party dealer where and bought the car and the BMW dealer for service) but I ended up having to have the car put back to "factory stock" to get the work done which meant returning the 403M's and getting 400M's. I didn't have to pay for any of it, but I lost the 19" look of the 403M's which I liked. In the end I got new wheels and new tires for free, just an 18" set.
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      01-22-2019, 05:22 PM   #91
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Has anyone tried to get this replaced for free out of warranty? Mine failed at 47k and seeing as there's a strong chance it will fail again at 100k it's something that really bothers me about the car.

I don't see how it's fair to have a $6,000 job on essential a 50k mile replacement schedule.
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      01-22-2019, 09:27 PM   #92
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Noticed from the spreadsheet most of the failures are happening with diesels and the 335i, could it be possible the failures are due to the increased torque? For the 328i owners who had the failure are you running any kind of performance mods or tune?
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      02-14-2019, 01:54 PM   #93
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Originally Posted by 328dX View Post
Has anyone tried to get this replaced for free out of warranty? Mine failed at 47k and seeing as there's a strong chance it will fail again at 100k it's something that really bothers me about the car.

I don't see how it's fair to have a $6,000 job on essential a 50k mile replacement schedule.
I was at the dealer just last week with this. Our original transfer case was replaced at 49K miles and we started having issues again this month which they said was the transfer case again. We are at 129K miles now and my service rep, who is a good guy, tried to get BMW NA to replace it for free since this would be #2. Due to the mileage and time between the first replacement and now they said no, but he did track down a refurbished one which would be $4K all in to replace. I think I remember that they told him like 20-30K miles is what they would replace it for free.

As it turns out it was my tires which was causing the issues. I now have all 4 the same brand, size, and tread depth with no stuttering issues.
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      02-14-2019, 04:42 PM   #94
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There are at least 2 known failure modes for transfer cases, besides the "distractors" labeled as a transfer case failure, as you mentioned.

So yes, it is super important to ask what specifically failed, with proof, because the dealer's mentality is to shotgun a part before actually solving the problem. Sure, they're not paid to be investigators, but it's in your own interest to know more details.

I have already came up with a preventative method/approach (loctite output flange plus the full rubber flex disk) for the more severe failure mode, which can potentially save a lot of money for owners in long term. https://f30.bimmerpost.com/forums/sh....php?t=1579087
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Last edited by Enabled; 02-15-2019 at 01:41 PM.
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      02-14-2019, 05:21 PM   #95
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Quote:
Originally Posted by M Pete View Post
I was at the dealer just last week with this. Our original transfer case was replaced at 49K miles and we started having issues again this month which they said was the transfer case again. We are at 129K miles now and my service rep, who is a good guy, tried to get BMW NA to replace it for free since this would be #2. Due to the mileage and time between the first replacement and now they said no, but he did track down a refurbished one which would be $4K all in to replace. I think I remember that they told him like 20-30K miles is what they would replace it for free.

As it turns out it was my tires which was causing the issues. I now have all 4 the same brand, size, and tread depth with no stuttering issues.
Honestly doubt tires will be a long term "fix" as your quite up there in mileage on your replacement tc. When mine failed i had new Michelins all around
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