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Discussion Starter #1
Hi there, has anyone come across this fault as its got us and our local Peugeot specialists stumped! Car is a 2001 307 1.6 petrol. If I put a new keyfob battery in each of the two keys, synch them to the car (although usually they operate the car locking straight away without the synch procedure), put the spare key away in the house and use one key in the car. Within generally 2-3 weeks the key in use battery goes flat. The key in the house still has a full battery over the same period. So then use the spare key in car, put new battery in first key and put in house.2-3 weeks later spare key battery flat, original key still full battery. Experimented and put a new battery in one key and left it in house now for the past 8 weeks and still full charge. Does anyone have any ideas or come across this before?
 

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Yes I too am having a similar problem.
307 1.6 2001 but I just use the one main key fob as the other doesn't have a battery.
Battery in the fob lasts approx 2 WEEKS and I only use it around 20 times a week.
I have bought a new key case in case that was the problem.
Currently using Dur*cell Electronics 2016 power cells which fortunately are obtainable inexpensively from a well known web site.
Even the main dealer has not heard of this but advised me to purchase Peugeot's own brand to see if that lasts longer.
Let's hope that at 10 times the price it will last for six months!!!!!!!!:lol:
 

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Discussion Starter #6
Still not solved it here either. Both keys behave in exactly the same way..ie away from car battery lasts ages...but in use battery will be dead after about 10-14 days. Find it difficult to believe both keys would be faulty in exactly the same way.... My local dealer and Peugeot specialists both stumped too...
 

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Take the keys apart and make photos of them please. Then post the photos here.

Look at the batteries (used ones) do you have rust coloured spotting on the contact points?

Other posibility is that the buttons are being depressed in your pocket by other keys, coins, etc. That would also flatten a battery quickly.

It could also be gremlins :D
 

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Discussion Starter #9
keys have been apart on mine..all spotlessly clean, no rust/water ingress etc. Have been thoroughly cleaned with electrical contact cleaner. Battery comes out looking as new as when it went in! Keep key in seperate pocket away from anything else to avoid accidental contact, also experimented keeping keys far away from mobile phone in case of any sort of interference! So I guess it must be the ruddy gremlins....shame cos its an otherwise smashing car! Thank you all who've made suggestions..more welcome!!
 

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keys have been apart on mine..all spotlessly clean, no rust/water ingress etc. Have been thoroughly cleaned with electrical contact cleaner. Battery comes out looking as new as when it went in! Keep key in seperate pocket away from anything else to avoid accidental contact, also experimented keeping keys far away from mobile phone in case of any sort of interference! So I guess it must be the ruddy gremlins....shame cos its an otherwise smashing car! Thank you all who've made suggestions..more welcome!!
Did you find a solution to this problem as I have just bought a 2nd hand 307 with the same fault to a tee. Both keys just like you as well.
 

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Wouldn't it be easier to ask him to check the RR battery to see if thats dead seeing as everyone who's had the RF issue reports flat vehicle battery!

I don't see how the RF problem will prevent another receiver like the AA's tool to test the fob either!

And finally - now he's not using the fob but manually locking / unlocking the car should mean he is still getting vehicle battery drain if he was suffering the RF issue.

Its a real common head ache, I know - but in this case I just can't see it to be true.

But to be sure - you can always go and unplug the antenna behind the panel on the drivers side of the boot - this normally provides a work around for the RF issue rather than going out and spending the £100 on a new unit only to find your key fob is still fooked
 

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Yes I too am having a similar problem.
307 1.6 2001 but I just use the one main key fob as the other doesn't have a battery.
Battery in the fob lasts approx 2 WEEKS and I only use it around 20 times a week.
I have bought a new key case in case that was the problem.
Currently using Dur*cell Electronics 2016 power cells which fortunately are obtainable inexpensively from a well known web site.
Even the main dealer has not heard of this but advised me to purchase Peugeot's own brand to see if that lasts longer.
Let's hope that at 10 times the price it will last for six months!!!!!!!!:lol:
Did the new key fix the problem ... I NEED to fix mine it's driving my nuts. :)
 

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Wouldn't it be easier to ask him to check the RR battery to see if thats dead seeing as everyone who's had the RF issue reports flat vehicle battery!

I don't see how the RF problem will prevent another receiver like the AA's tool to test the fob either!

And finally - now he's not using the fob but manually locking / unlocking the car should mean he is still getting vehicle battery drain if he was suffering the RF issue.

Its a real common head ache, I know - but in this case I just can't see it to be true.

But to be sure - you can always go and unplug the antenna behind the panel on the drivers side of the boot - this normally provides a work around for the RF issue rather than going out and spending the £100 on a new unit only to find your key fob is still fooked
It's the Fob's battery thats going flat not the car battery ?
 

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Discussion Starter #14
No vehicle battery problems whatsoever.Locking car manually with key every time now, given up buying keyfob batteries.........
 

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Please do the following.

Use the key with the dead battery in the ignition only.
Hint: Put stickers on the keys so you know which is which.

When opening the doors, use the remote on the other key (with a new battery of course).

Let us know in 4 weeks if the key you are using as a remote is still working.
 

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Discussion Starter #17
Me again! Remote used to unlock doors only lasted just under 3 weeks before going totally dead..so a slight improvement only. Back to square one?
 

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Occam's Razor. Look for the easy solution.
1. Are you buying batteries from a place where they turn over 1000s? They have a shelf-life whether or not they are used. So if you buy then from some small corner shop or the dealers, chances are they are all but dead.
2. Where do you keep your keys? If it's in one of those key pockets in jeans, chances are that the button is being pressed each time you bend or sit down.
3. Test the batteries for voltage with an AVO meter before putting them in.
4. They are the right batteries, aren't they? There are lots of batteries the same size but with different voltages and current capacity. If the one in yours was "X" when you got the car, it could be that you are just replacing the battery with the wrong one.
 

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Discussion Starter #19
YEP, good batteries used, have now tried all brands. Tested with multimeter before use and after when dead. Keys kept as flat as poss to prevent accidental use, can't understand it. (I am by the way a fully skilled garage foreman by profession, so I like to think I know what I'm doing and have come across and cured many strange things over the years, but this issue now got me beat!!!)
 

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Did you try resynching them to rule that out ?

Part 1
Lift Bonnet and prop up, open drivers window and leave open
Put Key in ignition and turn on ignition.
Turn off ignition and take key out whilst outside (through open drivers window)
Wait until mileage display goes out - Wait another 2 minutes
Disconnect positive on main battery (Bonnet is open!)
Wait 5 minutes
Re-connect main battery (Leave bonnet up)
Turn sidelights on then off from outside of car through drivers window that had been left open. Do not open door.

Part 2
Put key in ignition and turn ignition on, press lock button for 20 secs
Turn ignition off and remove key
Remote lock and remote alarm now work
 
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