Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E70) Forum
Arnott
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 09-11-2021, 04:05 PM
Member
 
Join Date: Jun 2020
Location: Oregon
Posts: 5
Laecaon is on a distinguished road
Replaced AWD Module, shift issue.

Hi,

Car is an 08 X5 3.0

Quick history. Sun roof drain disconnected and flooded the rear of the car, standing water at the battery. AWD errors as water was splashing on the module. Fixed that and dried things out. Issue gone for 5 months. Then AWD issues came back intermittently. Finally diagnosed it as the module itself and ordered a used replacement on eBay. All errors are gone now.



So now that I have "fixed" it, I have another issue which I think is a result.

Most noticeable is that downshifts to 1st gear are rough, but also upshifts from 1st to 2nd arent the nicest. You slow down to a stop and at like 1or 2 mph it down shifts and its not really pleasant. I am thinking I probably need to recode it, or something like that.



I only replaced the module yesterday, and these issues were immediately after replacement.



-Replaced AWD module with a used unit
-Rough downshift to 1st, and upshift from 1st
-I have INPA/NCSExpert software


Any help would be much appreciated.

Last edited by Laecaon; 09-12-2021 at 03:45 AM.
Reply With Quote

Sponsored Links

  #2  
Old 09-12-2021, 02:02 AM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,356
ard is on a distinguished road
what is the "BMW name" for this AWD module???


ANy codes or warning when you read it with INPA?
Reply With Quote
  #3  
Old 09-12-2021, 03:45 AM
Member
 
Join Date: Jun 2020
Location: Oregon
Posts: 5
Laecaon is on a distinguished road
"Control Box, Transfer Unit"


27607606629.


It exists next to the battery. I should have probably added that this is an 08.


I will scan codes tomorrow. I thought about it and realized I didnt even try to remove any codes either.
Reply With Quote
  #4  
Old 09-12-2021, 09:25 AM
Member
 
Join Date: Aug 2005
Location: Phoenix, AZ
Posts: 387
smassey321 is on a distinguished road
Can you feel the 1-2 2-1 shift when you shift manually while stopped? If so, it is probably the solenoids in the transmission.

https://www.ebay.com/itm/40274338853...kAAOSwdS1dJOQF
__________________
2009 35d, 2006 325i & 330i
Reply With Quote
  #5  
Old 09-12-2021, 01:08 PM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,356
ard is on a distinguished road
Did that module need coding/reseting?
Reply With Quote
  #6  
Old 09-12-2021, 04:26 PM
Member
 
Join Date: Jun 2020
Location: Oregon
Posts: 5
Laecaon is on a distinguished road
Quote:
Originally Posted by smassey321 View Post
Can you feel the 1-2 2-1 shift when you shift manually while stopped? If so, it is probably the solenoids in the transmission.

https://www.ebay.com/itm/40274338853...kAAOSwdS1dJOQF

The vehicle only has 86k miles, but I did test this, and it was smooth, almost could not tell it was shifting.



Quote:
Originally Posted by ard View Post
Did that module need coding/reseting?

This I do not know. Clearly being an identical part number and version number the hardware is the same, and the manufacturer date was only 3 months newer and being pulled from a 3.0si of the a similar year, I imagine the programming is good... but not necessarily any adaptations.









I did do a transmission adaptations reset. And I cleared the codes on the VTG and Parking brake. None came back immediately. Ill drive it again later today and check again.



But that said, the shifting is definitely better. Less noticeable, but still there. Im honestly thinking its something to do with the timing between the clutch solenoids firing in the Transfer case and transmission shifting.
Reply With Quote
  #7  
Old 09-12-2021, 07:13 PM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,356
ard is on a distinguished road
In the TIS, the official instructions say to "carry out programming/encoding" when 'removing and installing'
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 03:27 PM.
vBulletin, Copyright 2021, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.