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      08-12-2021, 10:57 AM   #265
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The recall would really only replace your transfer case if they determine that the output flange is loose from worn splines.
If there is an issue internally (with clutches let's say), then it wouldn't qualify.


I would be highly curious to finding out what may be going on with this different (non-output flange) failure.
I would start with inspection underneath and moving the front driveshaft by hand a bit to get a feeling for what may be going on.
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      08-12-2021, 01:38 PM   #266
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Quote:
Originally Posted by Enabled View Post
The recall would really only replace your transfer case if they determine that the output flange is loose from worn splines.
If there is an issue internally (with clutches let's say), then it wouldn't qualify.


I would be highly curious to find out what may be going on with this different (non-output flange) failure.
I would start with inspection underneath and moving the front driveshaft by hand a bit to get a feeling for what may be going on.
I guess the next step would be to get it inspected. If it isn't covered I'll probably just run it in RWD for the rest of my ownership and let it be someone else's problem down the road. Really don't feel like dumping thousands of dollars into a 6.5 year old car.
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      08-12-2021, 04:16 PM   #267
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Quote:
Originally Posted by Enabled View Post
The recall would really only replace your transfer case if they determine that the output flange is loose from worn splines.
FYI Mine got replaced for output flange being very rusty.
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      08-12-2021, 09:13 PM   #268
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Originally Posted by Onizukachan View Post
FYI Mine got replaced for output flange being very rusty.
I'm starting to regret swapping mine out on my own
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      02-10-2023, 07:08 AM   #269
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Do the transfer case actuators on the F22 and F30 have the same plastic gear stripping problems that the older cars had (E46, E9x)? I searched for this issue but am only finding stuff about the older cars.

My M235i is having the classic transfer case failure symptoms. Stuttering/hesitation under acceleration (load dependent). The car had a leak from the front output seal when I bought it, but wasn't showing real noticeable symptoms at the time. After fixing the seal and replacing the fluid, it became more noticeable/frequent. My gut tells me it had been leaking for longer than I know and that it got too low on fluid, causing damage to the clutch discs.

The BMW dealer diagnosed it as a failing transfer case needing full replacement (symptoms went away when they unplugged it). I talked to an independent shop yesterday and they want to start by checking the actuator to see if the 'plastic gears are stripped'. Is that still an issue with the F22/F30, and if that were the case, wouldn't there be fault codes for the actuator? Is this something that can be easily checked, or do you have to tear apart the actuator?
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      02-10-2023, 11:26 AM   #270
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Quote:
Originally Posted by roarf View Post
Do the transfer case actuators on the F22 and F30 have the same plastic gear stripping problems that the older cars had (E46, E9x)? I searched for this issue but am only finding stuff about the older cars.

My M235i is having the classic transfer case failure symptoms. Stuttering/hesitation under acceleration (load dependent). The car had a leak from the front output seal when I bought it, but wasn't showing real noticeable symptoms at the time. After fixing the seal and replacing the fluid, it became more noticeable/frequent. My gut tells me it had been leaking for longer than I know and that it got too low on fluid, causing damage to the clutch discs.

The BMW dealer diagnosed it as a failing transfer case needing full replacement (symptoms went away when they unplugged it). I talked to an independent shop yesterday and they want to start by checking the actuator to see if the 'plastic gears are stripped'. Is that still an issue with the F22/F30, and if that were the case, wouldn't there be fault codes for the actuator? Is this something that can be easily checked, or do you have to tear apart the actuator?
No, there are no plastic gears
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      03-15-2023, 04:20 PM   #271
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Possible transfer case issue

Hey guys,

I’ve had my 2017 440i gc for almost 2 years now and it’s been amazing. Went stage 2+ and I couldn’t be happier. The tune I’m running is rwd bias and once it’s in sport+ mode or when I turn the traction completely off, it functions just like a rwd should. The other day I went out and I was drifting around with the boys (on private property btw) and next thing you know I get a whole bunch of lights on the dash. I didn’t really think much of cause it’s a BMW. I used BimmerLink to scan the car and I got these codes (They’ll be listed below). I haven’t taken the vehicle to a dealer/shop yet. If anyone knows or has an idea of what’s going on, that would be greatly appreciated.

48097D
Transfer case - clutch position open, rear wheel drive only
480682
Transfer case - clutch position unknown
D36D44
Signal error (status distribution longitudinal torque front axle rear axle, ID:
ST_REPAT_XTRQ_FTAX_BAX) - qualifier
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      03-16-2023, 05:13 PM   #272
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Thinking about buying a used 2014 328d with 80k miles. Is there any way to know if the transfer case was replaced? I could have a shop put the car on a lift for a PPI - would a rubber guibo flex disc be a good indicator of a recalled/replaced transfer case? Or is there a part number for the newer model that I could ask the shop to look for? Thanks!
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      03-17-2023, 06:25 AM   #273
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Quote:
Originally Posted by triax37 View Post
Thinking about buying a used 2014 328d with 80k miles. Is there any way to know if the transfer case was replaced? I could have a shop put the car on a lift for a PPI - would a rubber guibo flex disc be a good indicator of a recalled/replaced transfer case? Or is there a part number for the newer model that I could ask the shop to look for? Thanks!
I can atest only for a visual cue that the rubber guibo might give you. I’m sure someone more knowledgeable will be able to comment on other cues.
Perhaps ask your BMW dealer to run the VIN on the system, they might have detail info on work done on the vehicle?
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      03-17-2023, 08:41 AM   #274
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Quote:
Originally Posted by F30_320D_UK View Post
I can atest only for a visual cue that the rubber guibo might give you. I’m sure someone more knowledgeable will be able to comment on other cues.
Perhaps ask your BMW dealer to run the VIN on the system, they might have detail info on work done on the vehicle?
Thanks! I actually called BMW NA and they offered no information, saying that both their phone lines and dealer phone lines would get too busy with people checking on if recalls had been done.
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      03-17-2023, 09:08 AM   #275
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The transfer case also has a date stamped on it, it may serve to be a good indicator.

The rubber giubo would definitely be a potential sign that a dealer had done some work there (but not always).
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      03-17-2023, 09:13 AM   #276
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Quote:
Originally Posted by triax37 View Post
Thanks! I actually called BMW NA and they offered no information, saying that both their phone lines and dealer phone lines would get too busy with people checking on if recalls had been done.
BMW proving to be of great help here
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      03-23-2023, 01:00 PM   #277
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Long thread. Didn't pour over every single post, but I did skim each page. Correct me if I'm wrong, but here's how I'm seeing it:

1) This is mostly a pre-LCI, 4cyl issue. We only saw a couple reports of 2016+ cars and/or 6cyl cars having TC failures.
2) This may or may not be a staggered issue, but running square can't hurt.
3) xDelete may not prevent it, but it also can't hurt.
4) Changing the fluid may help, but it also can't hurt.

All that said, I've got a 2017 340i so I'm guessing that combo is relatively "safe"...or maybe safe it's the word, but maybe "at less risk". Is that a reasonable statement? If I wanted to reduce my risk further, running a square setup, using xDelete, and changing the fluid are the lowest hanging fruit to further reducing my risk (I have zero interest in taking apart my TC to replace guibos, loc-tite splines, etc).

Am I missing anything??

Also... FaRKle! ...you have a plane?! Sheet 3 of your spreadsheet has info about your aircraft
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Last edited by LYTSOUT; 03-23-2023 at 01:20 PM..
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      03-23-2023, 02:02 PM   #278
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Quote:
Originally Posted by LYTSOUT View Post
Long thread. Didn't pour over every single post, but I did skim each page. Correct me if I'm wrong, but here's how I'm seeing it:

1) This is mostly a pre-LCI, 4cyl issue. We only saw a couple reports of 2016+ cars and/or 6cyl cars having TC failures.
2) This may or may not be a staggered issue, but running square can't hurt.
3) xDelete may not prevent it, but it also can't hurt.
4) Changing the fluid may help, but it also can't hurt.

All that said, I've got a 2017 340i so I'm guessing that combo is relatively "safe"...or maybe safe it's the word, but maybe "at less risk". Is that a reasonable statement? If I wanted to reduce my risk further, running a square setup, using xDelete, and changing the fluid are the lowest hanging fruit to further reducing my risk (I have zero interest in taking apart my TC to replace guibos, loc-tite splines, etc).

Am I missing anything??

Also... FaRKle! ...you have a plane?! Sheet 3 of your spreadsheet has info about your aircraft
The aluminum giubo (flex disk) was the cause of a lot of the pre-LCI failures involving the output flange.
BMW had been replacing those (with or without a replacement TC) for the diesels, which were the most susceptible to vibration wear. There has been loads of progress for the pre-LCI cars' transfer cases.

You're quite safe with the 340i
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      03-23-2023, 04:46 PM   #279
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Quote:
Originally Posted by LYTSOUT View Post
Long thread. Didn't pour over every single post, but I did skim each page. Correct me if I'm wrong, but here's how I'm seeing it:

1) This is mostly a pre-LCI, 4cyl issue. We only saw a couple reports of 2016+ cars and/or 6cyl cars having TC failures.
2) This may or may not be a staggered issue, but running square can't hurt.
3) xDelete may not prevent it, but it also can't hurt.
4) Changing the fluid may help, but it also can't hurt.

All that said, I've got a 2017 340i so I'm guessing that combo is relatively "safe"...or maybe safe it's the word, but maybe "at less risk". Is that a reasonable statement? If I wanted to reduce my risk further, running a square setup, using xDelete, and changing the fluid are the lowest hanging fruit to further reducing my risk (I have zero interest in taking apart my TC to replace guibos, loc-tite splines, etc).

Am I missing anything??

Also... FaRKle! ...you have a plane?! Sheet 3 of your spreadsheet has info about your aircraft
I agree with Enabled that you're quite safe with a 340i xDrive since the engine is one of the smoothest (least vibrations) around, and you have the rubber giubo preventing vibration chattering of the TC flange teeth.

Running square or running in RWD mode I don't think reduces the risk any. If anything I'd say the data conclusively says that square/staggered has no correlation with the issue.

As for the plane... I think somebody edited my sheet thinking it was theirs haha. I also noticed the document was renamed to "Nimetön laskentataulukko" which looks Finnish to me, but I have zero idea what it means!
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      03-25-2023, 03:44 AM   #280
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Quote:
Originally Posted by FaRKle! View Post
As for the plane... I think somebody edited my sheet thinking it was theirs haha. I also noticed the document was renamed to "Nimetön laskentataulukko" which looks Finnish to me, but I have zero idea what it means!
That is the default title of a new spreadsheet, in English ”untitled spreadsheet”. And no, it wasn’t me
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      04-26-2023, 09:37 PM   #281
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Was the rubber flange upgraded in the 2014 335xi ( EWG) ? i am at 97k miles and planning to change out trans and transfer case fluids, sounds like there is no concerns there
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      04-26-2023, 10:10 PM   #282
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No, yours would have the aluminum one from factory and would benefit from updating it to the rubber one.
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      05-05-2023, 01:10 PM   #283
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Been following this thread. I'm subscribed. I think I might need a new transfer case. Just made a thread about it. To keep documenting transfer case failures, here is the link to my thread. I will bring discussion in here if preferred. Not 100% sure if its my t case or not.

https://f30.bimmerpost.com/forums/sh...4#post30103104
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      06-22-2023, 04:35 PM   #284
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2015 328d, bought with 96k miles private party, local dealer by seller did the EGR cooler recall and looked at tx case recall and said it needs a new flex disc, want us to order/install? I passed....and assumed replacing it was going to be on me at some point down the road as it was original.

Had a diesel particulate sensor code at 101k and took it to my local dealer (replaced at no charge / no diagnostic fee) and had them look at transfer case while there - they said due to friction rust build up needs to be replaced - score! I dont think the first dealer even went through the inspection process.

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BM26-11-7-610-061 UNIVERSAL JOINT
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