Car Shudders at 1500 rpm - Bimmerfest - BMW Forums



Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series & 8 Series > 7 Series - F01 / F02 / F03 / F04 (2008 - 2015)

7 Series - F01 / F02 / F03 / F04 (2008 - 2015)
The 5th generation F01/F02/F03/F04 BMW 7 Series flagship forum. The redesigned 7 series leads off the BMW Fxx chassis code, offering an 8 speed automatic transmission and all turbocharged engine options.

Reply
 
Thread Tools Display Modes
  #1  
Old 06-25-2019, 05:58 PM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Car Shudders at 1500 rpm

My 2010 750li often shudders and shakes when it gets to 1500 rpm. At firat I thought it was the tranny, but after I shifted in manual it does it on the 2nd as well as 1st gear. It doesn't do it when I step on the gas, or when I'm really easy on it. So basically it does it when accelerating normally. When it gets to speed it doesn't do it anymore, just when starting to move. No codes or any lights on the dash. Any ideas?
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 06-25-2019, 08:03 PM
HerbP HerbP is online now
Super Moderator
Location: Georgia
 
Join Date: Jul 2009
Posts: 7,783
Mein Auto: 05 645Ci, 14 750 M-Sport
It could possibly be the transmission is low on fluid, it will not signal a code. The fluid usually gets cooked from heat, then it starts getting low on fluid. The fluid should be changed at 50k mile intervals. Usually you will get a transmission warning when the fluid pressure gets low, due to the Mechatronic Adapter Sleeve gets hard, & does not seal properly.
Reply With Quote
  #3  
Old 06-26-2019, 05:00 AM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Should I change anything else in the transmission while I'm in there?
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old 06-26-2019, 07:12 AM
rafiqi rafiqi is offline
Registered User
Location: memphis
 
Join Date: Apr 2012
Posts: 83
Mein Auto: 2006 e65
Might be a ignition coil about to go out. Try getting a scan.
Reply With Quote
  #5  
Old 07-02-2019, 07:29 PM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Did the spark plugs and ignition coils. Nothing changed. Will try to do the tranny flush next.
Reply With Quote
  #6  
Old 07-02-2019, 08:55 PM
Robin750 Robin750 is offline
Officially Welcomed to the 'Fest
Location: Washington
 
Join Date: Apr 2013
Posts: 1,823
Mein Auto: 2013 750i and 2015 740i
Quote:
Originally Posted by isstatu1 View Post
Will try to do the tranny flush next.
Drain and fill, do not flush. Make sure to change the pan when you get this done and that the shop knows the procedure (and has the diagnostic equipment) to fill the fluid at the right temperature.
__________________

2015 BMW 740i and 2013 BMW 750i (current)
2011 BMW 750i (previous)
2002 BMW 745i (previous)
2001 Lexus LS430 (previous)


delete pls 8K
*NEW* delete pls 8K
Reply With Quote
  #7  
Old 07-03-2019, 03:03 AM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Got it, thank you!
Reply With Quote
  #8  
Old 07-05-2019, 08:58 AM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Is there anything else besides the pan that should be changed while the fluid is being changed?
Reply With Quote
  #9  
Old 07-05-2019, 09:16 AM
Robin750 Robin750 is offline
Officially Welcomed to the 'Fest
Location: Washington
 
Join Date: Apr 2013
Posts: 1,823
Mein Auto: 2013 750i and 2015 740i
As Herb mentioned, the mechatronics sleeve and adapter seals can also be a source of problems, though those usually cause more serious problems or trigger fault codes due to low fluid pressure.

The mechatronics has to be removed to replace these seals so there will be some more labor involved, but if you've got around 100K miles, it might not be a bad idea to replace these as a preventative measure since you've already got the fluid drained and pan off. Make sure the shop is familiar with these transmissions as reinstalling it incorrectly can cause serious problems or damage.

Here's a relevant thread about these seals:

https://www.bimmerfest.com/forums/sh...d.php?t=995002
__________________

2015 BMW 740i and 2013 BMW 750i (current)
2011 BMW 750i (previous)
2002 BMW 745i (previous)
2001 Lexus LS430 (previous)


delete pls 8K
*NEW* delete pls 8K

Last edited by Robin750; 07-05-2019 at 09:18 AM.
Reply With Quote
  #10  
Old 07-25-2019, 06:09 PM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Did the service for the transmission. The shop said the fluid was low, but it still shudders at 1500rpm. Any more ideas?
Reply With Quote
  #11  
Old 07-25-2019, 10:37 PM
Robin750 Robin750 is offline
Officially Welcomed to the 'Fest
Location: Washington
 
Join Date: Apr 2013
Posts: 1,823
Mein Auto: 2013 750i and 2015 740i
Did they reset the valve body adaptations? If so, the transmission should shift rough for a couple hundred miles.
__________________

2015 BMW 740i and 2013 BMW 750i (current)
2011 BMW 750i (previous)
2002 BMW 745i (previous)
2001 Lexus LS430 (previous)


delete pls 8K
*NEW* delete pls 8K
Reply With Quote
  #12  
Old 07-26-2019, 05:20 AM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Quote:
Originally Posted by Robin750 View Post
Did they reset the valve body adaptations? If so, the transmission should shift rough for a couple hundred miles.
It's possible they did not. Is there a specific driving procedure after the adaptation, or is it just a button click in ISTA? I found instructions for an older Exx model that has instructions of a particular acceleration procedure after a reset that has to be repeated 9 times, but nothing for the F02 model.
Reply With Quote
  #13  
Old 07-26-2019, 09:10 AM
Robin750 Robin750 is offline
Officially Welcomed to the 'Fest
Location: Washington
 
Join Date: Apr 2013
Posts: 1,823
Mein Auto: 2013 750i and 2015 740i
Quote:
Originally Posted by isstatu1 View Post
It's possible they did not. Is there a specific driving procedure after the adaptation, or is it just a button click in ISTA? I found instructions for an older Exx model that has instructions of a particular acceleration procedure after a reset that has to be repeated 9 times, but nothing for the F02 model.
It's in the EGS ECU functions. There is no special driving procedure needed, just drive the car normally at varying speeds so it can determine the adaptations.
__________________

2015 BMW 740i and 2013 BMW 750i (current)
2011 BMW 750i (previous)
2002 BMW 745i (previous)
2001 Lexus LS430 (previous)


delete pls 8K
*NEW* delete pls 8K
Reply With Quote
  #14  
Old 07-29-2019, 03:34 PM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Did the adaptation. I don't notice any changes so far. Still shudders, but it feels like it gets pretty high in the RPM range to do the shift.. It feels like it's hesitating a little bit. I'm adding a screencap from ISTA before the adaptation.
Reply With Quote
  #15  
Old 10-17-2019, 01:18 PM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Turns out it was a failed transfer case mount. Replaced it. Still does a very small shudder, but way better. And crazy vibrations when accelerating are barely noticeable now.

Has anyone replaced their transfer case? Do they have any electrical components or are they purely mechanical?

If I need to replace it, should I get a new one or a used one should do?
Reply With Quote
  #16  
Old 10-17-2019, 02:57 PM
Carbonblack12 Carbonblack12 is offline
Registered User
Location: Colorado
 
Join Date: Dec 2017
Posts: 32
Mein Auto: 2012 750i xDrive
Quote:
Originally Posted by isstatu1 View Post
My 2010 750li often shudders and shakes when it gets to 1500 rpm. At firat I thought it was the tranny, but after I shifted in manual it does it on the 2nd as well as 1st gear. It doesn't do it when I step on the gas, or when I'm really easy on it. So basically it does it when accelerating normally. When it gets to speed it doesn't do it anymore, just when starting to move. No codes or any lights on the dash. Any ideas?
Any updates on this? Mine does something similar. Mine does it if I drive a little aggressive. If I'm driving normal, it simmers down a bit, but may still sporadically do this. I really don't want to raise my car just to check the tranny fluid either. Although, I would rather do that than change anything out. lol

Nevermind, I missed your recent post.

Last edited by Carbonblack12; 10-17-2019 at 02:58 PM.
Reply With Quote
  #17  
Old 10-17-2019, 03:02 PM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Quote:
Originally Posted by Carbonblack12 View Post
Quote:
Originally Posted by isstatu1 View Post
My 2010 750li often shudders and shakes when it gets to 1500 rpm. At firat I thought it was the tranny, but after I shifted in manual it does it on the 2nd as well as 1st gear. It doesn't do it when I step on the gas, or when I'm really easy on it. So basically it does it when accelerating normally. When it gets to speed it doesn't do it anymore, just when starting to move. No codes or any lights on the dash. Any ideas?
Any updates on this? Mine does something similar. Mine does it if I drive a little aggressive. If I'm driving normal, it simmers down a bit, but may still sporadically do this. I really don't want to raise my car just to check the tranny fluid either. Although, I would rather do that than change anything out. lol

Nevermind, I missed your recent post.
I wouldn't wait to fix it. It's only going to get worse. How many miles do you have on your 7? It could be low on transmission fluid. Try going to a parking lot and basically turning your wheel to one side and another and go. Does it ahudder then? Mine didn't when I did that which made me think that's not a transmission issue.

Last edited by isstatu1; 10-17-2019 at 03:10 PM.
Reply With Quote
  #18  
Old 10-17-2019, 03:10 PM
paprmkr's Avatar
paprmkr paprmkr is offline
Officially Welcomed to the 'Fest
Location: Oxnard, CA
 
Join Date: Apr 2005
Posts: 939
Mein Auto: 2010 BMW 750Li
I got transmission replaced at about 75K miles haven't done service. currently at 168K since I didn't do it at 50K is it too late no issues guess reason I thought I shouldn't touch it
Reply With Quote
  #19  
Old 10-17-2019, 06:44 PM
HerbP HerbP is online now
Super Moderator
Location: Georgia
 
Join Date: Jul 2009
Posts: 7,783
Mein Auto: 05 645Ci, 14 750 M-Sport
Quote:
Originally Posted by isstatu1 View Post
Did the adaptation. I don't notice any changes so far. Still shudders, but it feels like it gets pretty high in the RPM range to do the shift.. It feels like it's hesitating a little bit. I'm adding a screencap from ISTA before the adaptation.
That is sounding a COP problem at that speed under load. I would pull the COP's out to inspect them, to make sure they are not shorting out?
Reply With Quote
  #20  
Old 10-17-2019, 06:46 PM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Quote:
Originally Posted by HerbP View Post
Quote:
Originally Posted by isstatu1 View Post
Did the adaptation. I don't notice any changes so far. Still shudders, but it feels like it gets pretty high in the RPM range to do the shift.. It feels like it's hesitating a little bit. I'm adding a screencap from ISTA before the adaptation.
That is sounding a COP problem at that speed under load. I would pull the COP's out to inspect them, to make sure they are not shorting out?
What's a COP?
Reply With Quote
  #21  
Old 10-18-2019, 04:05 PM
HerbP HerbP is online now
Super Moderator
Location: Georgia
 
Join Date: Jul 2009
Posts: 7,783
Mein Auto: 05 645Ci, 14 750 M-Sport
The COP is the coil pack on the spark plug.
Reply With Quote
  #22  
Old 10-18-2019, 04:07 PM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Quote:
Originally Posted by HerbP View Post
The COP is the coil pack on the spark plug.
Those were replaced and nothing changed.
Reply With Quote
  #23  
Old 10-19-2019, 04:59 PM
HerbP HerbP is online now
Super Moderator
Location: Georgia
 
Join Date: Jul 2009
Posts: 7,783
Mein Auto: 05 645Ci, 14 750 M-Sport
I would then verify that the grounds on the valve cover are attached for the coils, there will be 2 wires on each valve cover. I would then do a smoke test to see if there is a vacuum leak somewhere?
Reply With Quote
  #24  
Old 10-19-2019, 05:21 PM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Quote:
Originally Posted by HerbP View Post
I would then verify that the grounds on the valve cover are attached for the coils, there will be 2 wires on each valve cover. I would then do a smoke test to see if there is a vacuum leak somewhere?
When I'm at a red light and I make a turn it doesn't do it. Could that still be a COP issue?
Reply With Quote
  #25  
Old 10-21-2019, 05:34 AM
isstatu1's Avatar
isstatu1 isstatu1 is offline
Officially Welcomed to the 'Fest
Location: New Jersey
 
Join Date: Jan 2019
Posts: 333
Mein Auto: 2010 750Li
Also very rarely it throws a chassis stability malfunction light with the little 4x4 symbol. I turn the car off and back on and it disappears. It happens maybe once or twice a month.
Reply With Quote
Reply

See More Related BMW Stories


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series & 8 Series > 7 Series - F01 / F02 / F03 / F04 (2008 - 2015)
Today's Posts Search
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 On



Forum Jump


All times are GMT -7. The time now is 08:38 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
© 2001- VerticalScope Inc. All rights reserved.