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E 46 ignition key battery
#1
What battery does the E46 ignition key use? I don't feel like stripping the key first to check.
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#2
If it's original then it uses a rechargeable battery that is soldered onto the board. There are replacement units that can be soldered onto the board or you could purchase an aftermarket key that uses a replaceable battery.
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Current:
'10 E90 330d Exclusive

Ex:
F25 X3 2.0d ,Alfa Romeo GT 3.2F20 M135iE90 M3 Dynamic LCi, '11 BMW E90 320d MSport, '09 BMW E90 320i Exclusive, '03 BMW E46 330i Individual, '02 BMW E39 525i Individual, '06 Impreza 2.0R Wagon, '03 S3 8L, '11 A3 1.6TDi, '70 VW Beetle 1600 Twin Port '00 A4 2.4 V6, '09 Ibiza Cupra 1.8T, 2013 Vivo Gran Turismo, E36 M3 Coupe, E46 320i Individual MSport, '98 Civic V Tec, E36 318is Msport, E30 318i Coupe,GOLF MK1 GT
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#3
Thanks Kyle, I'm aware of all of that, but don't know the code of the battery
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#4
It’s LIR 2025
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#5
i replaced mine the other day , took about 30 minutes of messin around to separate the fob, replaced the battery and done works like a charm (i replaced my battery with a CR2016)

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Never give up on a Dream even if others dont encourage it.
You have the Dream & the desire of it for reason, Follow your heart & you cant go wrong
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#6
(19-10-2020, 08:02 AM)DonovanPorter Wrote: i replaced mine the other day , took about 30 minutes of messin around to separate the fob, replaced the battery and done works like a charm (i replaced my battery with a CR2016)

Is this an oem key or aftermarket replacement key?
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#7
OEM key

in my opinion i doubt the original batteries charge

[Image: Highway.jpg]
Never give up on a Dream even if others dont encourage it.
You have the Dream & the desire of it for reason, Follow your heart & you cant go wrong
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#8
CR 2016, thank you, that's the info I wanted.
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#9
cool.

[Image: Highway.jpg]
Never give up on a Dream even if others dont encourage it.
You have the Dream & the desire of it for reason, Follow your heart & you cant go wrong
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#10
Let us know how it goes, CR2016, has no pins that has to be soldered... if you open it up and you find the battery has pins... then it is LIR2025.
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#11
For reference this is my key fob.
2004 318i Touring E46

   
   

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Never give up on a Dream even if others dont encourage it.
You have the Dream & the desire of it for reason, Follow your heart & you cant go wrong
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#12
Just changed the battery, but the key had a CR 2026 battery, a bit thicker than the CR 2016.
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#13
does it work correctly ?

[Image: Highway.jpg]
Never give up on a Dream even if others dont encourage it.
You have the Dream & the desire of it for reason, Follow your heart & you cant go wrong
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#14
Yes, but I'll fit the correct battery asap.
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#15
great

[Image: Highway.jpg]
Never give up on a Dream even if others dont encourage it.
You have the Dream & the desire of it for reason, Follow your heart & you cant go wrong
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#16
Been using the same keys for my 2003 with no issues. I just swop them out every 3 months.

"The Future is not set, there is no fate but what we make for ourselves."

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