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#2
10-23-2017, 03:36 PM
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the battery for the remote key? you can buy a replacement battery that goes in the back of the key but i doubt you can DIY, or try your luck with a BMW body shop and see what they say? GL
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2003 BMW X5 Sport pkg, DSP, cold weather package, xenons 2003-2013 (Total loss as a result of accident) 109k miles at time of accident 
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#3
10-23-2017, 03:43 PM
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There are lots of DIY threads on replacing the remote key battery in a 9/99-2006 BMW e38/e39/e46/e53...in fact...you can't miss the many videos on YouTube, either.
 If you have any soldering skills...you may be able to do it...but do be careful cutting open the new style remote key. Many owners attempting this end up destroying the key by cutting in to deeply and damaging the IC board, or knocking off some of the capacitors and other parts on the board...are cutting the traces to the antenna. Are you 100% sure that the key's battery is dead? What are your symptoms...and what have you checked? The remote keys have 3 distinct systems that are independent of each other but do work in concert:
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#4
10-23-2017, 08:31 PM
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^ Agreed on making sure its actually dead.
The key part to me is "rechargeable". The battery in these keys is pretty impressive lifespan wise. I have never had a bmw go bad on me battery wise and I have some old ones. Actually I think I have some of the first ones made. The key to keeping it going is charging it. As little as I drive some of mine I have been thinking of building a stand alone charger but I never get around to it. I have run them down before from non use but it usually just takes a long drive somewhere to get them going again. Also as mentioned there are a ton of videos on youtube of people changing the batteries. Do you have more than one key and is it just one key that is "dead"? Usually its a car problem that causes them to stop working as mentioned above.
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Just BMW's - All cars and trucks was two pages long 1994 318is 1997 528i 2000 323i 2001 X5 3.0 auto 2005 X5 3.0 auto 2011 535xi auto 2013 X5 xdrive35 Turbo More are at my website Aftermarket E53 Radio Install
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#5
11-03-2017, 09:20 AM
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so how can you tell if the battery is actually dead? im going through this problem right now. pressing the lock/unlock buttons started working less and less of the time till it got to the point its not working at all and im using the key in the door lock
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 ***The post above should be taken as the opinion of THE VEIN and should not be viewed as a representation of XOUTPOST.com***
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#6
11-03-2017, 03:54 PM
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Quote:
Call around to your local Autoparts stores (like Autozone, Advanced Auto, O'Reilly's, Pep Boys, etc) and ask if they have a KEY FOB TESTER. If they don't, then try other local outlets that market batteries...like Batteries Plus. You may also want to check with other vendors that supply services to the automotive market...they may have a key fob tester as a courtesy (Sam's Club tire center, Costco tire center, American Tire, Discount Tire, Firestone, etc). Example of a key fob tester @ Autozone: customer tests one remote and tester shows it's sending a signal...then they test a new remote and the tester shows no signal
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Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral.
Last edited by Qsilver7; 11-03-2017 at 05:01 PM.
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#7
11-03-2017, 04:08 PM
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Battery replacement is like brain surgery. If you never done it before, better to take it to a professional or least a guy that knows what he is doing.
https://www.bmwgm5.com/default.htm
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD Last edited by upallnight; 11-03-2017 at 06:06 PM.
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#8
11-03-2017, 06:02 PM
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so basically if the key starts the car but doesnt lock/unlock the doors using the buttons then its just the battery?
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***The post above should be taken as the opinion of THE VEIN and should not be viewed as a representation of XOUTPOST.com***
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#9
11-03-2017, 06:07 PM
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Quote:
__________________
2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD
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#10
11-03-2017, 08:27 PM
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Quote:
But it's most likely the battery. 
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) 
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