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7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

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  #1  
Old 07-19-2016, 05:59 PM
rdm362 rdm362 is offline
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Location: Alabama
 
Join Date: Nov 2012
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Mein Auto: 2008 750Li
750LI transmission slams when accelerating ....

This topic may be on hear somewhere but I can't find it. I can find lots of info on the slamming when down shifting but the problem with my wife's 2008 750 is when you are accelerating to merge quickly on to say the Interstate. You get into the throttle fairly hard and accelerate to say 70-80 mph then move into traffic and then back out of the throttle to get back to cruising speed it slams like someone slammed you in the rear end. It is very loud and noticeable. After that slam the car drives fine in normal traffic.

Thanks for any info !!
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  #2  
Old 07-20-2016, 07:45 AM
Javster9 Javster9 is offline
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Location: Downey
 
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Mein Auto: 2007 BMW 750Li
If it's similar to like when someone rear ends or a small bump each time you accelerate on bumper to bumper traffic. I had the same issue replace these two and the car should be fine I used to think I had a tras issuing problem but no... That rubber please you see in the pictures was a chewed up like bubblegum when it was removed I guess this peace gives the car cussion so it does not slam or feel like someone hits you in the rear of the car this was my problem but I think your tras mission is fine and should just replace these first. Here is the pictures of the parts
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  #3  
Old 07-20-2016, 04:22 PM
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csmeance csmeance is online now
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Mein Auto: 760Li
changing the guibo joint in the rear of the car will mask the issue but won't fix it.

The real issue is the transmission slamming into gears because the computer isn't getting the right signals. My dealership told me after they did the 3rd trans on my car that some of the solenoids get dirty along with the fluid in the trans. Replace trans fluid, clean solenoids, replace the bridge seal and adapter seal and you should be good to go! BMW did that for me around the 120K mark and it's been a lot better since. New trans was installed around the 75K mark.
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  #4  
Old 07-20-2016, 05:45 PM
Javster9 Javster9 is offline
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You mean 120 thousand german currency wow that's a lot
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  #5  
Old 07-20-2016, 05:49 PM
Javster9 Javster9 is offline
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Did you mean like over 10 thousand US dollars?
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  #6  
Old 07-20-2016, 08:51 PM
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Quote:
Originally Posted by Javster9 View Post
You mean 120 thousand german currency wow that's a lot
120,000 miles is when it was done, first trans replaced at 72,000 miles, second shortly after at 75,000 miles.

The fix was required after putting about 50K miles on the latest transmission. The cost at BMW for all of this was paid by my warranty but came out to around $2000 including new fluids and rental.
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2013 TL Advance 3.5L

2006 BMW 760Li - Alpine White/Ebony-Ivory Two Tone

2010 Honda Accord EX - Basque Red/Ivory
lOE Fog Lightsl

2007 MDX Sport/Ent.- NGM/Taupe
lRB Slotted RotorslRoof RailslFront & Rear GarnishlAuto Mirrorl

2004 TL NAVI Auto - SSM/Quartz
lComptech SwaybarlHacked NavlTVNAV2GolUSA-SPEClDVD PlayerlSwitchblade KeylRB Slotted RotorslA-Spec Brakesl
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  #7  
Old 07-21-2016, 05:26 PM
Javster9 Javster9 is offline
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Mein Auto: 2007 BMW 750Li
Oh ok not bad.
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