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E63 / E64 M6 (2006 - 2010)

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  #1  
Old 03-13-2015, 08:39 PM
SloM6 SloM6 is offline
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Location: South FL
 
Join Date: Mar 2015
Posts: 5
Mein Auto: 07 M6
SMG Slippage

I just bought an 07 M6 w/SMG. I test drove 4 and all were manual transmission except the one I bought. The guy I bought it from told me this was normal but I can't seem to find any mention of it ANYWHERE. Here's the issue: When sitting at a complete stop I can quickly tap the accelerator pedal and it will rev to about 1k, almost like it's in neutral. Is this normal?
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  #2  
Old 03-13-2015, 11:19 PM
u3b3rg33k u3b3rg33k is offline
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Location: USA
 
Join Date: Jan 2015
Posts: 829
Mein Auto: e30, e60, R1100S
My understanding is the SMG transmissions do not feel like automatics - i.e. no "pull" when you ease off the brakes. once you start to move does it feel like it's slipping? I've only driven an E46 M3 SMG once.
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  #3  
Old 03-14-2015, 04:52 AM
SloM6 SloM6 is offline
****ie whipping ****
Location: South FL
 
Join Date: Mar 2015
Posts: 5
Mein Auto: 07 M6
Yes, that is exactly what I mean. There is no other slippage in any other gears even under hard acceleration. The only other thing I'm not sure about is the lag time between shifts during "normal" driving, you actually seem to lurch forward(like a first time user of a manual transmission is driving) when you are waiting for the next gear...
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  #4  
Old 03-16-2015, 07:24 AM
SloM6 SloM6 is offline
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Location: South FL
 
Join Date: Mar 2015
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Mein Auto: 07 M6
Wow! The response is overwhelming...
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  #5  
Old 03-23-2015, 05:30 PM
M6LA M6LA is offline
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Location: los angeles
 
Join Date: Mar 2015
Posts: 10
Mein Auto: 2007 BMW M6 Convertible
Have exact same model and year... mine starts stuttering and moving from 800 up to 1100 then like butter from there, wondering if a Trans fluid change might help
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  #6  
Old Yesterday, 07:21 PM
M6LA M6LA is offline
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Location: los angeles
 
Join Date: Mar 2015
Posts: 10
Mein Auto: 2007 BMW M6 Convertible
I "fixed" my issue by resetting the trans:
- drive 20+ down a hill
- gear in N
- pull back on both - and + flaps for 10 secs
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  #7  
Old Yesterday, 07:27 PM
SloM6 SloM6 is offline
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Location: South FL
 
Join Date: Mar 2015
Posts: 5
Mein Auto: 07 M6
Tried that as well, made no difference. Going to go to local tuner and get his opinion.
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