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E89 Z4 (2009 - current)

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  #1  
Old 05-21-2015, 05:17 AM
rchmndf rchmndf is offline
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Location: Gulfport MS
 
Join Date: May 2015
Posts: 3
Mein Auto: 2009 Z4 sDrive35i
2009 Z4 Replacement Battery Question

Hello everyone,
I'm new to the site, just bought a used 2009 Z4 sDrive35i last Saturday. I took it to a non-dealer shop and had a diagnostic run on it and it apparently needs a battery. I plan to replace the battery myself but the mechanic told me I need to bring the car back in so they can reset something or the car will burn up the new battery.

Does that sound right? I don't want to pay another $90 bucks if it isn't necessary.
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  #2  
Old 05-21-2015, 11:24 AM
need4speed's Avatar
need4speed need4speed is offline
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Location: South Carolina
 
Join Date: May 2006
Posts: 4,431
Mein Auto: 16 435 CV Msport PPK/335d
This is true. The car needs to be told that there is a new battery. If not it will over charge the new battery.
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  #3  
Old 05-21-2015, 04:04 PM
windwalker windwalker is offline
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Location: Canyon Lake, TX
 
Join Date: Nov 2007
Posts: 3
Mein Auto: 2009 BMW Z4 SDrive 3.0i
If you want to change the program in the car yourself then you should look at Carly for BMW. I had the same problem but was able to get a new battery myself then program the car for the correct battery type. With a Bluetooth OBD2 diagnostic adapter (Amazon - $30.95) you change or reset most things on the car. You can get a free lite program to test with but the full version is about $58. I got a Sears Die Hard battery then programmed the car to handle it. There are lots of codes to change, you can check them out on the web site.
http://www.mycarly.com/product/bmw-app/
They have the app for Android or iPhone.

I had read about others quoting $600 for the dealer to change the battery.

I found the information here in another thread.

Last edited by windwalker; 05-24-2015 at 12:19 PM.
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  #4  
Old 05-21-2015, 08:07 PM
rchmndf rchmndf is offline
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Location: Gulfport MS
 
Join Date: May 2015
Posts: 3
Mein Auto: 2009 Z4 sDrive35i
Thanks for the quick response. I just wanted to make sure the guy was on the up and up. Very helpful.
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  #5  
Old 12-31-2015, 08:17 AM
bmichon bmichon is offline
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Location: Boston
 
Join Date: Dec 2015
Posts: 2
Mein Auto: Z4 30si '09
Dealer replacement cost

Having mine replaced now.
Here is the quote.
z4 '09 battery replacement: $563.00 (minus $50 off $250 in service coupon)
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  #6  
Old 01-04-2016, 07:02 PM
rchmndf rchmndf is offline
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Location: Gulfport MS
 
Join Date: May 2015
Posts: 3
Mein Auto: 2009 Z4 sDrive35i
Thanks

Thanks for the response. I was lucky enough to get the dealer where I bought the car to replace battery for free.
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