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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 08-23-2012, 03:54 PM
joewanafly joewanafly is offline
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Location: California
 
Join Date: Aug 2012
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Mein Auto: 745Li
Battery Disconnect

After I disconnect my battery; then reconnct it. Will anything else need to be done for my 745Li to operate normally ?

Thank You..
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  #2  
Old 08-23-2012, 06:19 PM
SOUTHERNCOMFORT SOUTHERNCOMFORT is offline
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Location: COLUMBIA, SOUTH CAROLINA
 
Join Date: Oct 2010
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Mein Auto: 2002 745 Li / 2005 545 I
OK, Why are you disconnecting the battery?
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  #3  
Old 08-23-2012, 07:20 PM
bayerisheteknik bayerisheteknik is offline
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Location: naples,fl
 
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if its the same battery,you are disconnecting...nothing needs to be done....i had mine disconnected for 3 days while working on car,connected the battery and nothing....all you need after that just adjust the clock/date....
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  #4  
Old 08-24-2012, 09:23 AM
joewanafly joewanafly is offline
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Location: California
 
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Mein Auto: 745Li
Thank You.. I'm going to install a G-Force Chip.. I've read and heard about thing goins south after a battery was changed or a ECU reset was needed..
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  #5  
Old 08-25-2012, 08:34 AM
bayerisheteknik bayerisheteknik is offline
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Quote:
Originally Posted by joewanafly View Post
Thank You.. I'm going to install a G-Force Chip.. I've read and heard about thing goins south after a battery was changed or a ECU reset was needed..
i just checked out gforcechips website and they are saying up to 60HP gains and 30 lb=ft...let us know how it turns out and if you feel the difference in power
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  #6  
Old 08-28-2012, 04:42 PM
joewanafly joewanafly is offline
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Location: California
 
Join Date: Aug 2012
Posts: 5
Mein Auto: 745Li
Cool Modual Installed

Thanks to everyone for the advice..

I got the modual installed and the car does seem quicker.

(it was also a chance to clean out my trunk and clean corrosion from my Battery)

I'm taking a roadtrip over Labor Day weekend (about 750 - 800 miles)..

I'll let you know what I think after I return..
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  #7  
Old 08-28-2012, 05:27 PM
bayerisheteknik bayerisheteknik is offline
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let us know how is the mpg?
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  #8  
Old 08-28-2012, 06:06 PM
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jkidem jkidem is offline
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Location: Ohio
 
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Mein Auto: 745Li
what does the difference in air/fuel ratio and ignition timing change do to the car long term? life span less? failure more imminent ?
__________________


2013 328i M Sportline

2003 745li sold
2000 528i sold
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  #9  
Old 09-06-2012, 01:56 PM
joewanafly joewanafly is offline
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Location: California
 
Join Date: Aug 2012
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Mein Auto: 745Li
Smile G-Force Road Trip

These are my findings after my road trip.. Real World by Zip Code

These are mostly highway miles..

01.. 847 miles 36 Gal Fuel.. (Total for trip)

02.. Leg 1(91786 to 84770) 367 miles (6 Hrs) 15.426 Gal Fuel.

Drive around town some..

03.. Leg 2(84770 to 89031) 241 miles 11.314 Gal Fuel.

04.. Leg 3(89031 to 91786) 239 miles 9.269 Gal Fuel.

Back where I started..
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