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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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  #1  
Old 12-28-2014, 11:09 AM
Ladychekk Ladychekk is offline
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My battery keeps dying - 2004 BMW X3

Hello Everyone! I'm new to the forum, and need some help. I just got my 2004 Bmw X3 back in July and everything was cool until now. My battery keeps dying but Auto Zone says it's good. I keep having to get a big truck to jump it off then it will start. I need a good mechanic in the North Las Vegas area because the shops charge too much to diagnose it. I don't have alot of money but desperately need some help. I am now starting to hear all the costly, horror stories about BMWs, and it has me stressed out along with other problems. I didn't know what I was getting myself into. Please help!: cry:
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  #2  
Old 12-29-2014, 02:09 PM
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tim330i tim330i is offline
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Welcome to Bimmerfest! I've moved your thread to the X3 forum, you will get more help in here.

Tim
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  #3  
Old 12-29-2014, 03:29 PM
Ladychekk Ladychekk is offline
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Thanks!
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  #4  
Old 12-29-2014, 03:58 PM
swampX3 swampX3 is offline
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a good link

I thought you might be interested in reading this web page:
http://www.bimmerfest.com/forums/sho...errerid=343410

From,
swampX3
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  #5  
Old 12-29-2014, 04:02 PM
swampX3 swampX3 is offline
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contact these folks???

run a search for your local area thru the bmw forums ....here is one link

I thought you might be interested in reading this web page:
http://www.bimmerfest.com/forums/sho...errerid=343410

From,
swampX3

another N las vegas link to pursue
http://www.bimmershops.com/near/north-las-vegas-nv/

the blue tooth module disconnect is a good start....check joylove's posts

Last edited by swampX3; 12-29-2014 at 04:04 PM. Reason: add link
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  #6  
Old 12-29-2014, 04:52 PM
timgray timgray is offline
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How long does it take to kill the battery? you find it dead the same day or the next day? or weeks later after not driving it for a while?
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  #7  
Old 12-31-2014, 07:43 PM
Ladychekk Ladychekk is offline
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I got a new battery but it still won't start. The headlights, radio, etc comes on.. but is there a such thing as a car reset button or sleep mode. Would the anti-theft have anything to do with it? My son said it may be an ECM failure. Please help!
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  #8  
Old 01-01-2015, 07:45 AM
smaglik smaglik is offline
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If you can still jump it to start it, that's a good thing. Does it drive properly? Are there any codes?

If the battery tests good, look to the alternator. If the alternator is good, then look for a current draw when the car is supposed to be off.

Thy only way to 'reset' the car is to pull the battery for a good 30 minutes or so, but there is nothing like ctrl-alt-del.
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  #9  
Old 01-01-2015, 09:38 AM
Ladychekk Ladychekk is offline
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I'm stuck; it won't start at all but the headlights, radio all comes on. Auto Zone said the old battery and alternator was still good but I bought a new battery anyways but it still won't start. When you turn the key, it doesn't turn over.
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  #10  
Old 01-01-2015, 09:43 AM
Ladychekk Ladychekk is offline
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Does anybody know a "mobile" BMW mechanic in the North Las Vegas/Las Vegas, Nevada area. The BMWcar dealerships charge too much just to check the car. Besides, I would have to have it towed there, and that's miles away so another cost. I'm poor and shouldn't have this car. I hate it!

Last edited by Ladychekk; 01-01-2015 at 09:51 AM.
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  #11  
Old 01-01-2015, 10:41 AM
joylove joylove is offline
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Step one its not the ECU.
Step two unplug the TCU. It's a silver box in the trunk above the Rear wheel and the connector is removed by pivoting the lever locking mechanism. Google images for pictures of the TCU.
Step three measure the voltage across the battery terminals using a multimeter set the DC volts after it is not starting, expect 12.4V.
Step four are you driving it for long enough to charge the battery? From flat it will need 3-4 hours on a tricle charge or 1-2 with the engine driving (not idling).
Step five when you active the key with your fully charged battery, do you hear a click and do the lights dim?

Last edited by joylove; 01-01-2015 at 10:44 AM.
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  #12  
Old 01-01-2015, 10:44 AM
Ladychekk Ladychekk is offline
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I am trying to find a mechanic that knows abt BMW.
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  #13  
Old 01-01-2015, 10:47 AM
Supercourse Supercourse is offline
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We are trying to help, but you haven't responded to timgray's questions.

Need some background on how the problem first started, how old the battery was at the time, your driving pattern, etc.

One strong possibility is that your battery ground cable is not making a good connection. When you get a jump start a separate ground is established, so the boost works.

And that would explain why Autozone measures the old battery as good, and why the new battery is not working for you.

Could be something else, but that is what I would have someone check out first.

Doesn't have to be a BMW specialist - just someone who can look at the big picture (which you can't expect from Autozone guys.)

Last edited by Supercourse; 01-01-2015 at 10:50 AM.
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  #14  
Old 01-01-2015, 11:06 AM
Ladychekk Ladychekk is offline
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@timgray... I drove it around the corner to work but had to leave but it wldnt start back up. We got a jump 6 hrs later to get it home. But, now it's stuck.
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  #15  
Old 01-01-2015, 11:10 AM
Ladychekk Ladychekk is offline
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@supercourse.. it drove just fine until the time it wldnt start back up.
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  #16  
Old 01-01-2015, 11:23 AM
Ladychekk Ladychekk is offline
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@smaglik... it won't take a jump anymore... no codes
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  #17  
Old 01-01-2015, 12:11 PM
joylove joylove is offline
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Quote:
Originally Posted by Ladychekk View Post
@timgray... I drove it around the corner to work but had to leave but it wldnt start back up. We got a jump 6 hrs later to get it home.
This isn't going to be enough time to charge a flat battery.

Sadly none of us live in LV so we can't recommend a shop. Did you try YELP?

Since you are possibly looking at a starter or similar and you aren't gong do any more of the work from this point I recommend finding a shop. Ask your neighbors for a recommendation and also try google reviews.
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  #18  
Old 01-01-2015, 12:31 PM
Ladychekk Ladychekk is offline
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I bought a new battery even though they sd the other one was still good. I'm looking for a mechanic now in hopes they can come to my house. Tow trucks and shops charge too much evn for little stuff. I'm a single parent and cant afford this stuff. I just got it cuz it was a suv and only $8700. I just got it in July but will try to trade it in for something else as soon as I get it fixed. Thanks Everyone for all the help!
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  #19  
Old 01-01-2015, 02:05 PM
joylove joylove is offline
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Please come back once your issue is resolved to update this thread with the solution, so that future visitors to the site can find the information they need.
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  #20  
Old 01-01-2015, 02:29 PM
timgray timgray is offline
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I am wondering if the no start has nothing at all to do with the battery but instead the key. the key's transponder may be having issues authorizing the car to start. do you have more than one Key? try starting it with the second key if it will not start with the first.
When you try to start it explain exactly what happens. does it just not do anything? do you hear the starter motor trying to turn the engine?
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  #21  
Old 01-01-2015, 02:34 PM
dukedkt442 dukedkt442 is offline
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Stop buying things and tossing them at the vehicle; if you need to save money, this is not the way to go about it.

Find a reliable shop with a good reputation (no, not one of those gas stations with a mechanic on site). You're going to have to spend some money here; part and parcel for owning any vehicle, let alone a BMW.

Does the red battery light on the dash stay lit? You could have a bad alternator, a bad starter, poor connections, etc. causing the battery to drain, or not recharge. A simple test with a voltmeter would certainly help.
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  #22  
Old 01-01-2015, 04:28 PM
swampX3 swampX3 is offline
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no start diagnostic guide

it pays to be logical when diagnosing ....please read this very good troubleshooting no start flow

http://blog.bavauto.com/3562/no-start-1989-325i-e30/
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  #23  
Old 01-01-2015, 10:22 PM
smaglik smaglik is offline
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Best of luck, OP.
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  #24  
Old 01-01-2015, 10:27 PM
Ladychekk Ladychekk is offline
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I had my car checked out today, and was told I need a new starter. So, I will let everyone know things pan out once I get it done. Again, thanks to everyone who tried to help me...
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  #25  
Old 01-02-2015, 05:17 AM
timgray timgray is offline
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Good luck! I hope you got a good place for repair.

let us know how much they charged as well.
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