Key expired !

H9 BJT

Member
 Milton Keynes
Oh well, after almost 8 years my key battery has given up the ghost... :(

With no spare I'm buying a replacement... quoted £145 with my local dealer :thumbsdown:

I assume I have to buy from BMW but anyone else done differently and saved £'s at the same time?
 
H9 BJT said:
Oh well, after almost 8 years my key battery has given up the ghost... :(

With no spare I'm buying a replacement... quoted £145 with my local dealer :thumbsdown:

I assume I have to buy from BMW but anyone else done differently and saved £'s at the same time?

Are you sure its dead and doesnt just need reprogramming?

I had to resync my key after i left it depressed in my rear pocket.


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Yep, sadly tried that without success. Worked once but then gave up again... :(

BMW guy said that they tend to last around 8 years so rec replacement.
 
Has it been in regular use, or left as a spare? If you've not been using it, several long runs will kick it into life. Mine slowly came back to life with some very odd symptoms. To start with it would always start the car, but not operate the locks using the buttons or open the boot. Then it started unlocking but not locking. Then the boot came back to life and finally everything started working again. I now swap keys monthly to keep them both charged up.
 
Not tried this myself... But surely you can get a cheapo ebay key for £5 and open it and swap the battery over?

I have my dads old 5 series key (which got written off) and i managed to program that to open my doors... But no immobiliser/ key cut so thats all it could do.
 
Stuart Truman said:
Has it been in regular use, or left as a spare? If you've not been using it, several long runs will kick it into life. Mine slowly came back to life with some very odd symptoms. To start with it would always start the car, but not operate the locks using the buttons or open the boot. Then it started unlocking but not locking. Then the boot came back to life and finally everything started working again. I now swap keys monthly to keep them both charged up.

Good point...

It's in regular use but no long distances (6 miles / day)... I did take it for a longer drive yesterday hoping that it would come back to life but no joy... That said, it's worth hanging on a little longer and seeing if I can get it back rather than spend the cash. For now it manually locks the car and starts it and I can live with that.

Cheers
 
aquazi said:
Not tried this myself... But surely you can get a cheapo ebay key for £5 and open it and swap the battery over?

I have my dads old 5 series key (which got written off) and i managed to program that to open my doors... But no immobiliser/ key cut so thats all it could do.

Thanks for that.. I'll also give this a go. No harm in trying. :)
 
Since I think they charge inductively, has anyone tried using an electric toothbrush stand to top up their keys. :lol:
 
Adam D said:
Since I think they charge inductively, has anyone tried using an electric toothbrush stand to top up their keys. :lol:

Someone on here did try that and reported it works. I have no idea where the inductive coil in the key is though. I'd assume towards the end with the actual key on. No harm in trying it out
 
taking a step further would it be good now & again if the car was in garage on trickle charge for 24hours with key in ignition ? :?
 
mr wilks said:
taking a step further would it be good now & again if the car was in garage on trickle charge for 24hours with key in ignition ? :?

Not sure you would be covered with the insurance i your car was stolen.


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mr wilks said:
taking a step further would it be good now & again if the car was in garage on trickle charge for 24hours with key in ignition ? :?

Absolutely not! If the car is stolen with the key in the ignition the insurance is invalidated! :!:
 
I'm not totally sure the remote would charge with the key in the off position, despite the security risk. The WDS indicates that if the battery voltage is diminished at all, it needs to be charged for at least 30 minutes, and a fully discharged battery will take 30 hours to recharge.

Driving the car is the best way to recharge. :driving: :thumbsup: Keeps the battery topped up too!
 
Stuart Truman said:
mr wilks said:
taking a step further would it be good now & again if the car was in garage on trickle charge for 24hours with key in ignition ? :?

Absolutely not! If the car is stolen with the key in the ignition the insurance is invalidated! :!:

if i park the transit up to the garage door with the golf parked up to that & take the keys to bed perhaps i,l be ok ? ? :?
appreciate the concern though :)
 
http://www.ebay.co.uk/itm/Panasonic-VL2020-Battery-BMW-Car-Diamond-Key-Fob-E53-X5-E83-X3-AND-E85-Z4-/160842597785?pt=UK_ConsumerElectronics_Batteries_SM&hash=item2572f74599#ht_2303wt_1397

Not used myself but looks like it will do the job..
 
andysat said:
Taz x said:
does nobody make a desk top charger for the BMW key?

maybe a trip to dragons den
:thumbsup:

There was a charging pad in TK Maxx yesterday to wirelessly charge your mobile or other devices, almost picked it up though had too much other stuff I found I wasn't expecting to 'need', such as a mini electric compressor (£7.99), heavy duty tow strap (£4.99)
 
Wouldn't BMW have to replace/repair the key? Since the key has not lasted until the end of the car, then there should be reasonable expectation that the key would be recharged/replaced by BMW?
 
I'm wondering if someone hasn't split the case to see what sort of batt. is in there. Maybe a capacitor would work if the batt. is a one off not available to the public. Maybe it's a capcitor already and the electrolyte has dried up.
 
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