I fixed my key fob remote central locking - Bimmerfest - BMW Forums

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Old 11-02-2012, 01:15 AM
white_lancer white_lancer is offline
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Location: uk
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Mein Auto: E53 X5 2004 3.0 SPORT
I fixed my key fob remote central locking

I had the usual problem that the remote central locking did not work from the key fob with my X5. I decided to carry out surgery to fix the problem. I took a small craft knife and carefully cut all around the key fob to seperate the two halves. I had a spare battery prepared and ready to install but on further inspection I found that one of the battery terminals had sheared from the small ciruit board inside the key fob. I got the electrical tester out and tested the voltage of the new cell at 3.3v I then tested the voltage of the cell in my key fob and this too read 3.3v. I decided to try and re-solder the sheared terminal back on to the circuit board. I found a small piece of wire to use as a bridge and soldered it in place. Hey presto the remote central locking now works absolutely fine from the key fob. I carefully superglued the two halves of the key fob back together and now it is as good as new.

E61 2.0D Auto
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Old 11-02-2012, 12:15 PM
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QSilver7 QSilver7 is offline
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Location: Northeast Indiana
Join Date: Aug 2008
Posts: 9,053
Mein Auto: 1997 740iL / 2006 X5 4.4
Thanks for the update. Gotta add this fix to my mental roldex. It seems that this may be a symptom of the new style (diamond-shaped) keys that is plaguing many owners.
Q {BMW CCA Member #191509}
2006 E53 X5 4.4i (Sterling Gray) 12/05 mfg date <<~>> 97 740iL (Arctic Silver) 3/97 mfg date
99 540iT (Orient Blue) <<~>> 95 525IT (Alpine White)
91 735iL (Schwarz Black) <<~>> 85 325e (Bronzit)

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