HOW DO I OPEN A C5 KEY TO REPLACE BATTERY???

chris050 · Unread post by **chris050** » 17 Nov 2009, 20:42

Anyone know how I can do this? the remote function suddenly stopped working today. it may not be a battery issue but I thought I'd try that first.

many thanks
Chris

Unread post by **myglaren** » 17 Nov 2009, 20:56

Often wondered that myself.
Mine stopped working last week but opening it with the key seems to have restored the function.

Unread post by **myglaren** » 17 Nov 2009, 21:00

Just opened mine.
At the 'bottom' end, adjacent to the keyring, there is a slot.
Shove a fairly wide bladed screwdriver in and twist, the whole thing just falls apart.

May even buy a new battery now I have conquered that

ETA:
Interestingly enough, there are pressure pads for four buttons, wonder what the fourth is for?

Unread post by **myglaren** » 17 Nov 2009, 23:04

Click on the images, then click and click again for full resolution. Should have cropped them, sorry.
Must give the board a blast of contact cleaner. Pity I reassembled it before I thought of that.

Unread post by **Paul-R** » 18 Nov 2009, 23:00

myglaren wrote:Interestingly enough, there are pressure pads for four buttons, wonder what the fourth is for?

The buttons in my C5 remote cracked and I bought a four button remote off Ebay to repair it. I transferred the circuit board (and key) over and it all works as it should.

The extra button is marked with a door symbol with left and right arrows. The buttton which operates the dropglasses also has this symbol and operates the dropglasses as it should. The extra button does nothing.

I suspect that the original use is for the C8, or similar, with electrically operated doors perhaps?

Unread post by **myglaren** » 19 Nov 2009, 07:21

Yeah, I pointed the remote (board) out of the window an shorted the contact pads, all worked but the fourth one.
Could it be a boot release for the saloon?

Unread post by **Paul-R** » 19 Nov 2009, 11:31

I don't think so, it would surely have a different picture on the button. As I said both of the auxilliary buttons have the same picture which definitely shows a door, not a tailgate or bootlid.

Query about the C8. Does the exclusive model have two electrically sliding doors? If so, I think that this will be the culprit. Possibly the Peugeot equivalent as well.