this also makes it vulnerable to damage and wear and whilst the original fobs are very good, and the electronics very reliable, the mechanism does tend to get worn at around 30,000 miles and lose its original precision. The good news is that there are a number of copy bodies available on ebay (eg here on ebay ) and a worn key can be made as good as new fairly easily.
There are two types of fob so look at the number (ringed on upper pictures) on yours and get the same type.
Good batteries in these fobs last "forever" but should you decide to change it (3 volt Duracell DL1620), wait at least one minute before using the remote control.
As a rough guide, a key fob should be able to operate the doors and locking consistently from at least 15 metres.
if the door electrics stop working; repair immediately as the back-up emergency mechanical system is not designed for continual use.
If the key lock breaks and the electrics aren't working and the car is (as normal) dead-locked then you will have extreme difficulty getting into the car. I think the only way is to get the local main Peugeot dealer to sort the problem out; I am sure they will have a way of getting in that is known only to the trade.
Personally, I wish the security system wasn't so effective (after all, who would bother to steal a ten year old car worth sub-£1,000) and could be modified to a simpler security system in their old age.
to access the inside to change battery or replace body of fob - open using coin or screwdriver in slot at opposite end to key. This shows the individual components
this shows the position of the vital transponder - if you lose this the car won't start. Be aware that the later full CAN 1007's have the transponder built in to the PC board.
Many modern automobiles have keys with transponders hidden inside the plastic head of the key. The user of the car may not even be aware that the transponder is there, because there are no buttons to press. When a key is inserted into the ignition lock cylinder and turned, the car's computer sends a radio signal to the transponder. Unless the transponder replies with a valid code, the computer will not allow the engine to be started. Transponder keys have no battery; they are energized by the radio signal itself.
the key blank is secured to the sprung swivel mechanism by a small roll pin. To replace the blank supplied with replacement fobs with the original key, the roll pin can be knocked out with a fine drift.
if you don't have the right tools a jeweller (or a clockmaker) would probably be better than a garage to swap the key blanks over.
I have a Peugeot 1007  and have a problem with both of the keys.
The first key broke so that the METAL part of key fell out [but I still have it]. The remote control to open the doors and lock the car still works but the transponder to deactivate the immobiliser does not.
I have purchased a black replacement key but can see no way that I can insert my cut key into this blank. Is this at all possible?
The second key is still in one piece and the transponder works but the remote control to open the doors and lock the car does not. I have followed the instructions in the manual to reprogram the remote control but they have no effect. I suspect that the battery may need replacing but it is hidden beneath the electronics and I am reluctant to dismantle the only key which will allow me to drive the car!
You see I really do not have a clue and, therefore, are reluctant to go to a dealer who is likely to charge me for the most expensive solution option! Thanks in advance for any help you can give.
Keys are easily opened up with a screwdriver in the slot opposite the key end.
Key 1 - you have a problem as the transponder is a little black thing that sits right up in the nose of the key close to the base of the key blank. If this is missing then the key won't start the engine.
Blanks can be changed by knocking out the little roll pin at the base of the blank - if you partially close the key you can see it, close to the body. If you haven't the right tools (needs a fine punch and gentle hammer) then a jeweller will be able to help.
Key 2 - on mine the battery is immediately visible on the PC board - should be CR1620 which is a 3 volt battery. Changing the battery and programming the remote is laid out in the handbook and is straightforward.
The key identification code is on the confidential card which should have come with the car - the Peugeot dealer will be able to provide a new key from this information.
When I got mine at 32,000 miles, one of the keys was badly worn (not broken) so I did as you did and replaced the blank key by my original key. Hopefully you haven't thrown away the transponder piece which looks like a very small piece of coal - I did and had to rummage through the bin until I found it!
Many thanks for your advice. It really helped.
Although my key broke months ago - I had been putting off sorting it out - I grovelled around in my footwell and, amazingly, found the little piece of black plastic which turned out to be the transponder. It really looked like nothing but, hey presto, it worked!
I then found the battery in the other key. The PC board had stuck to the "wrong" side of the plastic casing. Changed that battery and that key now worked fully.
Had a spare blank key [was sent the wrong one first] to practice on and managed to remove the roll pin but could not get it back in. Decided to give up and go to our local locksmith to have the blank cut.
The great Polish guy there pointed out that the blank was the wrong size. The perils of buying from eBay! However, in about 3 minutes he removed the roll pin swapped the blades, redrilled the hole [because it was a bad fit] and replaced the roll pin.
Then only had to glue in the transponder [the space to fit it was too big to hold it] and the PC board. So, thanks to you and the locksmith I had no further outlay and have both keys functioning again.