Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E70) Forum
Fluid Motor Union
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 07-21-2021, 05:26 PM
Member
 
Join Date: Apr 2021
Location: Las Vegas, NV
Posts: 3
yikchandev is on a distinguished road
1st gear automatically shifting at 3k rpm

Hi, recently bought an x5 e70 2013 35i. I am having the 4x4 chassis stability malfunction problem. The error comes on every time I drive the car for about 1 mile or so.

When the light DOES come on, I'm unable to go past 3k rpm ONLY on 1st gear. So basically, the car automatically shifts from 1st to 2nd at 3k rpm when the error is there. After 2nd gear, everything is good. I am able to shift whenever I want past 2nd gear, even redlining. No hard shifts, everything is smooth. The only problem I have is the automatic shifting from 1st to 2nd.

When the error is NOT present, there are no issues whatsoever. No juddering, no hard shifting, nothing.

Any ideas on what it could be? When I test drove the car before I bought it, the light never came on, even for about 1 hour of test driving through various roads. I asked the dealer for new tires before I bought it, so they did. They put on a new set of tires(different than rear) right before I bought it. It seems as though after they put on the new sets of tires on the front, this 4x4 dsc malfunction started happening.

The error does not affect how it drives, only the automatic shifting from 1st to 2nd at 3k rpm is what bothers me. I have searched everywhere and cannot find the automatic shifting symptom. Please help!
Reply With Quote

Sponsored Links

  #2  
Old 07-21-2021, 06:50 PM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,319
ard is on a distinguished road
Tire mismatch can ruin the differential. I posted on bimmerfest....
Reply With Quote
  #3  
Old 07-21-2021, 07:15 PM
Member
 
Join Date: Apr 2021
Location: Las Vegas, NV
Posts: 3
yikchandev is on a distinguished road
The tire sizes for the front are 255/50ZR19 107W, while the rears are 255/50R19 107V.
Reply With Quote
  #4  
Old 08-22-2021, 12:33 AM
Member
 
Join Date: Sep 2019
Location: Frederick, MD
Posts: 149
Cyrix2k is on a distinguished road
Which tires specifically? The sizes on the side of the tires can be out of spec if not running identical tires on all corners.
Reply With Quote
  #5  
Old 08-22-2021, 02:03 AM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,319
ard is on a distinguished road
OP posted a month ago...wonder what happened?!?
Reply With Quote
  #6  
Old 09-07-2021, 08:58 PM
Member
 
Join Date: Apr 2021
Location: Las Vegas, NV
Posts: 3
yikchandev is on a distinguished road
nothing, still same error. tried rotating tires. fixed both front wheel bearings. thinking about doing an alignment, wheel balance. drives perfect, exccept when the light comes on after 5-10 min of driving, 1st gear wont shift past 3k rpm. automatically shifts to 2nd gear.
Reply With Quote
  #7  
Old 09-07-2021, 11:40 PM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,319
ard is on a distinguished road
Well, heck- if you arent worried about chasing down the issue, why should be be concerned??


You have a code reader capable of reading the BMW specific codes from the driveline? Or just not that interested?




The rotating tires thing? Whats that about? and an alignment and balance??? whatevs
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 08:36 AM.
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.