Replacement Key fob battery?

[M@r]{]

Anyone know how?????? The spare key isn't working after the first time I used it, the main one isnt exactly strong either

 

[markeg]

Don't these charge through the ignition? So using the spare for your next drive may recharge the battery?

 

[Jembo]

If you have an electric toothbrush, put the key on the stand. Apparently uses the same mechanism.

Bought a couple of spare batteries from Ebay, here's an example http://www.ebay.co.uk/itm/Panasonic-VL2020-Rechargeable-Battery-BMW-E46-Key-Fob-/260760969116?pt=UK_ConsumerElectronics_Batteries_SM&hash=item3cb6909f9c

but IT'S NOT EASY with the instructions nomatter what they say...

 

[M@r]{]

I see, hopefully just needs a charge then

 

[Lance]

Yep, they charge in the ignition.

 

[M@r]{]

Just been reading that they can lose their pairing too. This website gives instructions on how to re-pair

http://www.programyourkeys.com/BMW_3-Series_Key_Remote_Control_Fob_Programming.html

 

[cj10jeeper]

They are slow to recharge so use the spare on a regular basis (once every few months) and on a good long run, not 5 mins to the shops.

My original 2003 batteries still work perfectly.

 

[Lance]

Both my keys lost their pairing recently. I followed instructions from a post on here. Both work fine now.

 

[Lance]

Try here
http://www.z4-forum.com/forum/viewtopic.php?f=2&t=33557&p=454878&hilit=+key+programming#p454878

 

[SuffolkZ4]

:headbang: Just a quick question sort of related to this. When I bought my car only got one key? Stealers want a fortune for a key. Do you think I could get one cut and pair it myself from these instructions? :tumbleweed:

 

[cj10jeeper]

:headbang: Just a quick question sort of related to this. When I bought my car only got one key? Stealers want a fortune for a key. Do you think I could get one cut and pair it myself from these instructions? :tumbleweed:

No - you can easily pair to the alarm system but a separate transponder in the key is matched to the ignition. Any spare key even if cut will therefore open the door, disarm, but not start the car.
I believe there are some specialists who claim to be able to sort the transponder, but not a home job.

 

[SuffolkZ4]

Thanks jeepers, thought not, so off to the stealers for me then :driving:

 

[Bing]

Thanks jeepers, thought not, so off to the stealers for me then :driving:

I know it won't help you But my car only had one key and I politely insisted they get me a second before I'd purchase the car - they got one too. Shouldn't ever accept only one key

 

[Stuart Truman]

If you have an electric toothbrush, put the key on the stand. Apparently uses the same mechanism.

Interesting idea

I had a dead key when I got mine. It would start the car but no locking or alarm control. I tried several long drives and it slowly improved to where it would unlock but not lock the car. It wasn't until I did two four hour drives that it fully recovered. Now I swap keys and use them on alternate months


Tapatalking...

 

[M@r]{]

With regards to the charging with the toothbrush charger idea, is there any chance you could damage the keyfob? Thinking different currents? If not I'll stick it on tonight

 

[ColinP]

See Link http://www.youtube.com/watch?v=lGrxuUrnYSI

 

[spic]

Thread revival ☺
I replaced the batteries in each of my keys and had them working as they should, a month or so before Christmas, then the key I normally use started playing up then a week later stope working the remote locks all together, so dough the other key out and that's stoped working too ???
So my question is if these keys recharge while in the ignition do the battery's fitted in them need to be rechargeable or can they just be normal straight forward key fob batteries ???

 

[Ant]

they need to be rechargeable or it can f**k them/fob up

 

[spic]

That make sence, I tHoughton that may be the case