E85 key fob battery

Paulh

Member
Ok so my key fob battery looks like it's died on me! Only have 1 key at the minute so firstly can I replace the battery with a normal one or do I need a rechargeable one and is it a diy job thanks in advance
 
It's a pita to be honest as key is sealed, so you need to cut it. Then solder in new battery . Battery's are on fleabay, and you tube should show you how to do it.

Alternatively, there's a couple of guys on eBay who will provide a new key coded etc to the car. I think one is in St. Helens.
 
Do drive it quite a bit seems to have been playing up for the last couple of weeks must admit though mainly driving it on a weekend for a few hours but the car is a 53 reg and rechargeable batteries don't last forever
 
You could try placing it on a toothbrush charger (induction) overnight. Did that with my 04 reg dead key, it was nice & warm in the morning & has been fine since.
 
Hi guys .
Theres a guy on ebay in Blackburn does a bmw flip key with replaceable battery.
About £120 all in .
Nice guy .
:thumbsup:
 
One of mine is playing up, so just ordered a couple of these http://www.ebay.co.uk/itm/433Hz-Remote-w-CHIP-TRANSPONDER-For-BMW-E46-E39-3-5-7-Z3-M3-M5-Keyless-Key-Fob-/152529163109?hash=item2383725365:g:0yEAAOSwt0FZBAqL for £8 each! Gonna have a go at programming them to my car myself..

Mike
 
Ducklakeview said:
One of mine is playing up, so just ordered a couple of these http://www.ebay.co.uk/itm/433Hz-Remote-w-CHIP-TRANSPONDER-For-BMW-E46-E39-3-5-7-Z3-M3-M5-Keyless-Key-Fob-/152529163109?hash=item2383725365:g:0yEAAOSwt0FZBAqL for £8 each! Gonna have a go at programming them to my car myself..

Mike

Yeah, I saw those but they don't seem to be compatible with pre 2005's :( .
I had to reprogramme both my keys after the recharge of the dead one. I used method 2 on here:
http://www.programyourkeys.com/BMW_Z4_Key_Remote_Control_Fob_Programming.html
Worked no problem :D
 
oldgitdave said:
Ducklakeview said:
One of mine is playing up, so just ordered a couple of these http://www.ebay.co.uk/itm/433Hz-Remote-w-CHIP-TRANSPONDER-For-BMW-E46-E39-3-5-7-Z3-M3-M5-Keyless-Key-Fob-/152529163109?hash=item2383725365:g:0yEAAOSwt0FZBAqL for £8 each! Gonna have a go at programming them to my car myself..

Mike

Yeah, I saw those but they don't seem to be compatible with pre 2005's :( .
I had to reprogramme both my keys after the recharge of the dead one. I used method 2 on here:
http://www.programyourkeys.com/BMW_Z4_Key_Remote_Control_Fob_Programming.html
Worked no problem :D

Listing states compatible with Z4 - 2003-2005, so I am assuming pre-facelift? What you did only works to resync the remote, you can't program immobiliser transponders without the proper diagnostic kit :)

Mike
 
oldgitdave said:
You could try placing it on a toothbrush charger (induction) overnight. Did that with my 04 reg dead key, it was nice & warm in the morning & has been fine since.

+1 worked on mine just had to re sync both keys afterwards
 
I walked into here today, and 20 mins later I had a working key fob.

https://www.themasterlocksmith.com/product-category/vehicle-key-repairs/

£20 for just the battery
£40 for battery and new case/key cut.

I didnt feel safe sending my key off to some internet bloke with the address where my new baby resides lol
 
http://www.z4-forum.com/forum/viewtopic.php?f=3&t=98180&p=1455355#p1455355

Ben at bmkeys did mine

As above was worried about my keys with someone but my garage isn't next to my house:)
Plus after a long chat on phone he calmed me
Great results
 
Type in ebay .he is in Lancashire called nas auto . Does both normal key n flip key .
Hope this helps . He does it at his house pops out to code the key no problems . Take all the keys you have and he will delete the old keys so just the ones you have will work .
 
I had this on an E46. This fixed it. http://www.programyourkeys.com/BMW_Z4_Key_Remote_Control_Fob_Programming.html
 
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