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E89 Z4 (2009 - current)

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  #1  
Old 05-06-2012, 12:57 PM
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Michael
Location: uk
 
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Cars software

Hi, can anyone tell me if new modules have to be coded into the cars software?
I had a 6 series where this had to be done, is it the same on a 2010 Z4 3.0.
Many thanks
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  #2  
Old 05-07-2012, 02:35 PM
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ChuckE89 ChuckE89 is offline
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Not sure which "modules" you are referring to, but my experience is that anything which is a factory/dealer option must be added to the "Master" database in Regensburg, and reloaded into the car. This was required for both my added in Alarm System as well as new brakes.
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  #3  
Old 05-07-2012, 03:10 PM
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Michael
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Hi, thanks for the response! The kind of item would be, say a new battery or Ipod module, hi-fi upgrade etc.
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  #4  
Old 05-07-2012, 05:18 PM
jparnes1 jparnes1 is offline
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New batteries definitely need to be "registered" with the ECU. As you battery gets older and deteriorates, the ECU will tell the charging system to draw more voltage and amperage to run the car's electrical requirements. If you don't tell the ECU that you have anew battery, it will continue to discharge the new battery excessively and it will wear out sooner.
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Old 05-12-2012, 04:10 PM
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Yes and due to this 'feature' a new battery will run you $450. They don't call them stealerships for nothing.
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Originally Posted by jparnes1 View Post
New batteries definitely need to be "registered" with the ECU. As you battery gets older and deteriorates, the ECU will tell the charging system to draw more voltage and amperage to run the car's electrical requirements. If you don't tell the ECU that you have anew battery, it will continue to discharge the new battery excessively and it will wear out sooner.
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