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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series / 8 Series > 7 Series - E65 / E66 (2002 - 2008)

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 11-11-2016, 01:04 AM
Asadzaeem2 Asadzaeem2 is online now
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Location: Dubai, UAE
 
Join Date: Nov 2016
Posts: 5
Mein Auto: 2004 BMW 745Li (E66)
Transmission Issues ...need help

Hi guys,

Recently I have noticed that while driving at lower speeds the car keeps shifting gears or atleast thats how it seems. Although i have found no issues with putting the car from Prk to drive or while shifting gears during driving.

Only at lower speeds ( 30km/h to 70km/h ) theres continuous shifting felt.

I dont know what is the issue and I am requesting you guys to help me...before I goto the dealer and get ripped off ***128512;

Ita a 2004 745Li with 80k kms on it.
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  #2  
Old 11-12-2016, 04:55 PM
Hallivand Hallivand is offline
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Location: Sydney
 
Join Date: Jun 2015
Posts: 40
Mein Auto: BMW 745i
Does it fluctuate up and down if you keep a constant throttle?
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  #3  
Old 11-12-2016, 06:56 PM
Asadzaeem2 Asadzaeem2 is online now
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Location: Dubai, UAE
 
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Mein Auto: 2004 BMW 745Li (E66)
Yes it does.
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Old 11-12-2016, 06:59 PM
Hallivand Hallivand is offline
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Location: Sydney
 
Join Date: Jun 2015
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Mein Auto: BMW 745i
Take it to a trans specialist - 9/10 it's your torque converter. I'll assume your idling OK and if you put the foot down it goes well. Is there any shuddering going up hills?
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Old 11-12-2016, 07:57 PM
Asadzaeem2 Asadzaeem2 is online now
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Location: Dubai, UAE
 
Join Date: Nov 2016
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Mein Auto: 2004 BMW 745Li (E66)
The shifting is fine. No issues going up or down. However, I have felt a little Shuddering when at Idle. Not always, but lets 3 outs 6 the car slightly trembles at Idle ( for e.g at a Traffic Signal)
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Old 11-12-2016, 09:07 PM
Hallivand Hallivand is offline
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Location: Sydney
 
Join Date: Jun 2015
Posts: 40
Mein Auto: BMW 745i
Get the OBD codes run if possible, generally if the torque converter is going bad the shifting will always be OK, it's just that when you're at a constant throttle you'll notice it throbbing up and down, almost like on a manual car letting the clutch engage/disengage.

If it's shuddering at idle, make sure you're spark plugs and coils are in good order, this can be generally inexpensive especially if you do it yourself. Plenty information on doing this yourself across the forums here.
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Old 11-12-2016, 10:16 PM
Asadzaeem2 Asadzaeem2 is online now
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Location: Dubai, UAE
 
Join Date: Nov 2016
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Mein Auto: 2004 BMW 745Li (E66)
Thankyou for the detailed information guys.

So this morning I was going to office and all of a sudden it went into transmission failsafe mode.... the speed or the shifting was not affected though... it just gave the failsafe indication.

You think its rrlated to the previous issues ?
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  #8  
Old 11-12-2016, 10:25 PM
Hallivand Hallivand is offline
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Location: Sydney
 
Join Date: Jun 2015
Posts: 40
Mein Auto: BMW 745i
Best bet since it's thrown up a distinct Failsafe error is to get your car to your local Mech and have the error code run. At least you'll have somewhere to start, hopefully it's not your whole box playing up!
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745li 2004 bmw, gears, jerks, transmission


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