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X5 E70 (2007 - 2013)
E70 BMW X5 produced between 2007 and 2013. Discuss the E70 X5 with other BMW owners here.

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  #1  
Old 11-27-2012, 02:38 AM
Vex500 Vex500 is offline
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Mein Auto: E70 x5 3.0sd
Replacement battery

Hi there,
My 2008 3.0sd Is not holding battery charge, and as the car still has an original battery, I am thinking its time to replace it with a new one. My question is, does the car need to be recoded once the new battery is fitted? Any other tips or recommendations would be appreciated!

Thanks.
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  #2  
Old 11-28-2012, 10:53 AM
tlim66 tlim66 is offline
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Mein Auto: BMW X5 35d
Where is the battery and how do you get access to it
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  #3  
Old 11-28-2012, 12:00 PM
Penguin Penguin is offline
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Quote:
Originally Posted by tlim66 View Post
Where is the battery and how do you get access to it
Under the floor of the cargo area. Check your owner's manual for details.

P.S. Note that for battery charger usage, BMW recommends using the terminals under the hood, rather than a direct connection to the battery.

Last edited by Penguin; 11-28-2012 at 12:08 PM.
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  #4  
Old 11-28-2012, 12:07 PM
Penguin Penguin is offline
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Quote:
Originally Posted by Vex500 View Post
Hi there,
My 2008 3.0sd Is not holding battery charge, and as the car still has an original battery, I am thinking its time to replace it with a new one. My question is, does the car need to be recoded once the new battery is fitted? Any other tips or recommendations would be appreciated!

Thanks.
Theoretically-speaking, the computer needs to be told that a new battery has been installed to optimize the charging algorithm stored in the computer. This is clearly the "right" way to do it.

Practically speaking, opinions vary, with some people claiming not "recoding" will result in a battery dying in months from overcharging, while others claim that it will not have a major effect, and that the cost of any reduced life of the battery is less than the cost to have BMW dealer code it.

There is a general agreement that recoding is more important if the type or amp-hour rating of the replacement battery is different.

Finding an independent BMW specialist who has the equipment to recode it at a lower cost than an BMW dealer is probably the best approach, if you have one nearby.
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  #5  
Old 11-28-2012, 02:20 PM
ard ard is offline
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Mein Auto: '12 X5 35d/E39M5/996TTX50
FYI... The term is 'registering' the battery if you are just replacing the battery.. 5 minutes work by someone with proper BMW computer/software. It is NOT reprogramming, or anything complex.

If you change the size/capacity then you need to recode it. (ie tell the car a different capacity battery has been installed) Add one minute to the job.
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  #6  
Old 11-28-2012, 02:37 PM
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DPP528 DPP528 is offline
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Replace with the OEM battery, it's worth the money. My car is over 12 years old with only the second battery. The battery is going on about 8 years already. My alternator died and the 8 year old battery kept my car running for 120 miles before it stopped. Worth every penny.
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  #7  
Old 11-29-2012, 02:11 AM
Vex500 Vex500 is offline
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Location: Melbourne Australia
 
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Mein Auto: E70 x5 3.0sd
Thanks, we have got the car booked in with an independent BMW specialist to get the battery replaced, they have not said anything about the recommended recoding but I will put this to them when I get it done. Thanks again guys!
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  #8  
Old 11-29-2012, 10:42 AM
ard ard is offline
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Originally Posted by DPP528 View Post
Replace with the OEM battery, it's worth the money. My car is over 12 years old with only the second battery. The battery is going on about 8 years already. My alternator died and the 8 year old battery kept my car running for 120 miles before it stopped. Worth every penny.
Do you mean OE? like 'a BMW battery'? Or the OEM that made the OE battery but now sells it "oem" with their own name on it?

Understand that the X5 is made here in the USA ...the days of a solid, german OE battery shipping with the car...and the wisdom of seeking this import again from Germany when it is time to replace it...may be gone...

Who IS the OEM for the X5 battery anyway?
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  #9  
Old 11-29-2012, 03:02 PM
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DPP528 DPP528 is offline
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Do you mean OE? like 'a BMW battery'? Or the OEM that made the OE battery but now sells it "oem" with their own name on it?
Shouldn't make a difference, whichever's cheaper, the batteries usually retail for about ~$160 USD
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  #10  
Old 12-08-2012, 11:33 AM
GPSnV1 GPSnV1 is offline
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The only place I could find the right kind of battery for my 2009 4.8 X5 this morning was WalMart. So I should not go this route because there could be an issue with coding and their battery might be deficient? I started at Sams but they didn't have H8 in stock and couldn't find the battery!

I have an appointment with the dealer Tuesday AM, but am not willing to pay $350 for coding.
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  #11  
Old 12-08-2012, 01:02 PM
CALLAWAY845 CALLAWAY845 is offline
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Have you tried a place such as Batteries Plus? I have had luck finding an appropriate battery there.
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  #12  
Old 12-08-2012, 01:06 PM
GPSnV1 GPSnV1 is offline
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Originally Posted by CALLAWAY845 View Post
Have you tried a place such as Batteries Plus? I have had luck finding an appropriate battery there.
I'm sure they would have it but should I worry about the re-coding issue?
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  #13  
Old 12-08-2012, 01:12 PM
GPSnV1 GPSnV1 is offline
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Originally Posted by CALLAWAY845 View Post
Have you tried a place such as Batteries Plus? I have had luck finding an appropriate battery there.
I just called the local Batteries Plus and he said they only to '10 minute installs' so I'm not sure what they would say about the battery being under the cargo area.

Edited to say that there are not many places that will do this:
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Last edited by GPSnV1; 12-08-2012 at 01:35 PM.
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  #14  
Old 12-08-2012, 01:14 PM
CALLAWAY845 CALLAWAY845 is offline
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That battery is very easy to access. Be warned though, every light possible will be on for a little while after replacement...I just sent you some info as well (PM)
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  #15  
Old 12-08-2012, 01:21 PM
CALLAWAY845 CALLAWAY845 is offline
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Quote:
Originally Posted by GPSnV1 View Post
I'm sure they would have it but should I worry about the re-coding issue?
For what it is worth, I replaced my battery almost 3 years ago from Batteries Plus, and did not register. I have not had any issues. That being said, next time I will have my indy register. If I was you, I would seek out an indy in the next week or so to register. I would go ahead today and replace.
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  #16  
Old 12-08-2012, 01:47 PM
GPSnV1 GPSnV1 is offline
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Thanks for these suggestions. In the meantime, I am also trying to sort out the importance of registering and coding as explained here: http://www.xoutpost.com/909173-post16.html
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  #17  
Old 03-24-2013, 08:32 PM
Redskin Redskin is offline
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Is there are coding tool on the market that you can reprogram (re-code if a different Battery) and and register that is not ridiculously expensive?
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  #18  
Old 03-24-2013, 09:49 PM
RockChips RockChips is offline
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Quote:
Originally Posted by GPSnV1 View Post
Thanks for these suggestions. In the meantime, I am also trying to sort out the importance of registering and coding as explained here: http://www.xoutpost.com/909173-post16.html
same battery type and capacity------> you only have to register.

different capacity or type------------> you have to do both registering and coding.
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