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Transfer case fluid change
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08-15-2012, 10:36 AM | #1 |
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Transfer case fluid change
Can someone please confirm that you do not need to reset electronics if the transfer case fluid is changed?
So many different answers are out there, none confirmed (that I can find). Thanks! ----- 07 328xi 10/06 |
08-25-2012, 03:51 PM | #2 |
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I have been chasing that answer all week. One dealer said no, but they wouldn't even recommend changing the fluid. Another dealer said yes, that it was just a matter of resetting the fault (I wasn't talking about a fault). An indy shop had never heard of it. Then they came back and said they checked into it and it was actually necessary. A bunch of people here say not to bother with it, but others say to do it. This is very frustrating. I have a 2009 LCI 335xi, in case anyone on here can help.
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08-25-2012, 07:08 PM | #3 |
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You do not need to reset anything. Just did it (see my post) and no problems at all however if you have a convinience package I will lock car and wait to go to sleep prior to do any work on it - just as a precation.
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08-27-2012, 08:16 AM | #6 |
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09-03-2012, 11:35 AM | #7 |
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Reset question
I have done this on two cars, one required a reset (transfer case went into limp-mode / opened up the clutch after 2 miles of driving) and the other one did not (only 10 miles since change).
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09-03-2012, 11:40 AM | #8 | |
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09-04-2012, 07:16 AM | #9 |
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Thats exactly my point, I dont want to save a few bucks, do it home then have to limp to the dealer. Heard something about pre and post 09/07 builds. Pre didnt throw any errors while post did. Mine is pre so thats good but need more input.
By the way, is that 'car going to sleep and doing work after that' a myth or reality. Never really paid attention to it before. |
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09-04-2012, 07:33 AM | #10 |
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The pre/post 09/07 is pure speculation at this point (I posted that) since the two cars I did happened to fall in that category.
If anyone with a post 09/07 car did this and did not have to reset, that pattern is not worth noting. |
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09-04-2012, 09:16 AM | #11 | |
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09-04-2012, 10:35 AM | #13 | |
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09-07-2012, 10:32 AM | #14 |
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Ok gathering more info on this, if you did reset it what value did you reset?
Question is with the BT tool, would anyone please chime in on which parameter needs to be reset/deleted? Transfer case options in the BT tool include: - Delete HO integrators - Reset resistor class of gearbox - Delete calibration Thanks. Last edited by ozzy1; 09-07-2012 at 10:45 AM.. |
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09-07-2012, 12:30 PM | #15 |
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Drives: 2008 335xi 6spd Coupe
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Mine was replaced at 50k, and needed the reset.
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09-07-2012, 09:01 PM | #16 | |
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01-07-2013, 07:30 PM | #21 |
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Finally got around to do mine today. Fairly simple job (turned sort of sour for me).
Hammered out the bit from a 14 mm hex socket. Worked perfectly. Both bolts were on pretty tight. Took some effort. Old fluid was nice and dark. As we tend to say here, lifetime my arse. I have 110k on the car. During refilling tipped the bottle spilled 300 ml or so but had enough to complete the job. Without taking chances reset HO integrators via bt tool. Car seems smoother but it may be my imagination. Mostly the same, that's probably a good thing. |
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01-11-2013, 04:01 PM | #22 |
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ozzy1,
This is good news. I started with the project to change all fluids, have only completed the rear diff. I was worried about the TC throwing a code after I changed the fluid, since our '07 328xi wagon is the wife's DD. I called another local dealer, and they don't recommend changing fluids, and of course the SA does not know if anything has to be reset after the TC fluid is changed. The nearest dealer wants $505 labor to change the trans fluid alone, and the dealer I called today recommends not changing it, and they "suck" out the old fluid. I have all the parts, I'm dropping the pan and replacing the filter. I plan to follow the advice of Bossimo and let the car go to sleep before I do the TC. Bill |
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