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Key fobs and toothbrushes...

Discuss problems you have had or are having with your Z4
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Sidewaze Samm
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Key fobs and toothbrushes...

Post by Sidewaze Samm » Mon Sep 05, 2022 5:44 pm

I've read on here a few times over the past couple of years, advice given to charge a non-functioning OEM key fob on a charger for a toothbrush.
Has anyone actually had success doing this? and if so:
How did you position the key on the charger - flat (somehow), on it's side, upside down? (I have a Braun Oral B toothbrush)
How long did it take?

The problem I have is:
Both keys worked fine remotely at car purchase 12 months ago - when I selected one key as main and put one away as spare.
I've recently noticed that the working remote range of the main key varies from easily upwards of 20 feet to as little as 3 feet, and then only if pointing at the rear view mirror. There's no telling how well it will work until I try it.
So I thought I'd get the spare key out only to find that it will not work remotely at all, even when next to the mirror. It had previously worked wonderfully.
If it makes any difference, the car has had the GM5 module replaced (central locking became haphazard) though I'm honestly not sure when the issue with the main key started, in relation to this.

As regards the toothbrush charging, I would have used the spare key in the ignition for my 600-mile roadtrip over the bank holiday - but the zed clearly wanted to stay at home so spat it's coolant out the night before departure :headbang:
Still, wifey's Cooper S wasn't too bad I suppose...


Just thought... will the second key need coding to the new GM5 (that key wasn't with the car when the module was changed)?
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colb
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Key fobs and toothbrushes...

Post by colb » Mon Sep 05, 2022 11:34 pm

Yes the toothbrush charger will charge a key, just lay the key on the charging base. If your key has lost sync then it will require resyncing and all other keys must be synced straight after the first one. The magic eye in the rear view mirror talks to the keys for the locking functions so when syncing keys hold them in line with your ear so they are near the mirror. There is a key button pressing sequence you have to do to sync a key to the car. Threads on here that detail methods, do a search to find them.
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Key fobs and toothbrushes...

Post by enuff_zed » Tue Sep 06, 2022 9:41 am

I cut a short section from a toilet roll inner tube and put it round the charger so the key can lay flat on top.
I got fed up with it falling off!
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Key fobs and toothbrushes...

Post by 1536Z4 » Tue Sep 06, 2022 11:16 am

enuff_zed wrote: Tue Sep 06, 2022 9:41 am toilet roll inner tube
Do you have rubber toilet rolls ?
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Key fobs and toothbrushes...

Post by enuff_zed » Tue Sep 06, 2022 12:51 pm

1536Z4 wrote: Tue Sep 06, 2022 11:16 am
enuff_zed wrote: Tue Sep 06, 2022 9:41 am toilet roll inner tube
Do you have rubber toilet rolls ?
:headbang: :D
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miscbrah
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Key fobs and toothbrushes...

Post by miscbrah » Tue Sep 06, 2022 4:15 pm

Trying both an Apple Watch charger and toothbrush charger this week, fingers crossed.

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Key fobs and toothbrushes...

Post by healeyneil » Wed Sep 07, 2022 11:05 pm

I just discovered that replacement keys do not have rechargeable batteries

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Key fobs and toothbrushes...

Post by healeyneil » Wed Sep 07, 2022 11:07 pm

Oh, and you can change the battery easily

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Sidewaze Samm
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Key fobs and toothbrushes...

Post by Sidewaze Samm » Thu Sep 08, 2022 3:11 pm

healeyneil wrote: Wed Sep 07, 2022 11:05 pm I just discovered that replacement keys do not have rechargeable batteries
you mean replacements from the dealer... How much are they ?
2008 E85 3.0si
Space Grey, Dream Red New England heated Msports.
Xenons, MFSW, cruise, PDC, wind deflector.
ZHP, stubby, gloss black grilles, DLV box, gaptech, no CDV.

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Key fobs and toothbrushes...

Post by enuff_zed » Thu Sep 08, 2022 3:25 pm

There is this option too.................
viewtopic.php?p=1952630#p1952630
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healeyneil
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Key fobs and toothbrushes...

Post by healeyneil » Thu Sep 08, 2022 5:16 pm

Sidewaze Samm wrote: Thu Sep 08, 2022 3:11 pm
healeyneil wrote: Wed Sep 07, 2022 11:05 pm I just discovered that replacement keys do not have rechargeable batteries
you mean replacements from the dealer... How much are they ?
No. I meant replacements from independent guys. 3 years ago, I paid £40 for a complete key - including key cutting, but that was mates rates ( and the battery lasted nearly 3 years ! )
But the same mates rate I paid £150 for a spare key for my new to me F11 🤢

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Key fobs and toothbrushes...

Post by wiseguy » Fri Sep 30, 2022 6:11 am

healeyneil wrote: Wed Sep 07, 2022 11:07 pm Oh, and you can change the battery easily
Do tell! How?
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Key fobs and toothbrushes...

Post by healeyneil » Sun Oct 02, 2022 4:24 pm

With the replacement key, the battery compartment flips open with a small screwdriver. Couldn’t tell you the battery, but it’s a CR 36 or something like that

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Key fobs and toothbrushes...

Post by N4LLY » Sun Oct 02, 2022 5:07 pm

healeyneil wrote: Sun Oct 02, 2022 4:24 pm With the replacement key, the battery compartment flips open with a small screwdriver. Couldn’t tell you the battery, but it’s a CR 36 or something like that
That's the compfort access key that can be changed, right ?

Non you have to break open and re-glue etc ? I beleive. Mine have no access without cracking open.
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N4LLY
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Key fobs and toothbrushes...

Post by N4LLY » Sun Oct 02, 2022 5:23 pm

I got one of these, very handy. Charges my Mobile phone also. 8)

https://www.az-tech.my/product-details.php?id=81
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