Peugeot 208 Key Replacement
It is best to leave the replacement of Peugeot keys 208 to auto locksmiths that have the equipment and know-how. They can program and create keys faster and less expensive than dealerships.

If your key fob stopped locking or unlocking your doors it is likely due to a dead coin battery. There are other reasons the key could be malfunctioning.
Dead Coin Battery
A dead battery can stop your Peugeot 208 from locking and unlocking, as well as stopping it from starting the engine. If this is the case, you'll need to utilize the backup starting method that is detailed in the owner's manual of your vehicle.
The spark plugs could also be worn out. The spark plugs light the fuel to start the engine. They have a limited lifespan. If they're not used enough they will eventually fail.
Luckily, there's an easy solution to this issue. The best solution is to test the voltage of your car battery using a multimeter. If the voltage is lower than 11,5 volts, it's time to replace it. If the battery is corroded it is necessary to clean its contacts. You can do this by lifting the rubber covers that protect the two battery terminals and using a wire brush to remove any corroded components of the battery. Then, reconnect the positive and negative pole cables.
Water Damage
If your 208 does not start and the battery has not fallen flat, it is time to look at the spark plugs. It could be that they are filthy and don't spark. This can be easily corrected by cleaning the spark plugs in an workshop.
Peugeot cars are equipped with a transponder key that is compatible with the car's immobiliser system. This ensures that only the correct key is able to turn the engine. If the chip inside the Peugeot key is damaged, then it won't transmit the correct signal to the vehicle.
This is a common problem that can be caused by water damage. This is especially prevalent in colder climates, as the vehicle might have been exposed to rain or snow. In this instance, you should contact a reputable locksmith who will have the required tools and equipment to reprogram the key. They will also have the latest technology and equipment needed to make the Peugeot smart key. The process shouldn't last more than 15 minutes.
Contacts with the battery may be damaged.
Peugeot replaced the transponder chips by introducing a new model that utilizes electronic components mounted on a circuitboard. The new system is fantastic when it's brand new, but the circuit boards deteriorate over time and stop working properly.
This can prevent the immobiliser chip from triggering, so your car won't start. Contact an Peugeot specialist, or a locksmith, if this is the case.
Another common issue is when the key fob battery starts to die, this causes the key blade to stop getting into the lock. A locksmith from your vehicle can replace the battery and cut a fresh blade for you, this is normally a quick fix.
Faulty Receiver Module
It could be that the receiver module is defective in the event that your Peugeot key fob stops working after being dropped on the floor, or exposed to a sudden rainstorm or accidentally washed. The receiver module is responsible for transmitting radio signals to the onboard computer which manages the central locking system of your Peugeot vehicle.
The key fob itself has rubber seals that prevent water from getting to the chip inside. Water can damage the chip if it is exposed to water for long periods of time. The high salt content of the ocean or pool can cause damage to the key fob when it is submerged.
If your Peugeot spare key fob isn't working, you'll need to have the module replaced. This can only by done by a Peugeot specialist or a professional auto locksmith. replacement key for peugeot 207 www.g28carkeys.co.uk like other cars are secured by an immobilizer device. This requires the proper code to begin the car. This is why it is imperative that you should only trust an authorized Peugeot locksmith to design and program an alternative.
Faulty on-Board computer
The computer on board in your Peugeot is the one responsible for all of the systems within your car, from airbags to power windows. The computer on board will display a code when something goes wrong. The code will be stored in the system until the issue is resolved. Often, this will involve the on-board computer being replaced.
The most frequent cause for the airbag warning light to flash is corrosion or loose connections in the sensor. This could be due to wear and tear, aging or exposure to salt and moisture. This issue needs to be addressed as soon as you can, as an airbag that's malfunctioning could be dangerous in the event in the event of an accident.
If your Peugeot is showing a card that is not being detected error, then the battery in the key fob could be dead or weak. This can prevent the key fob from sending a signal that disarms your vehicle's standard immobilizer. You can test this by pressing the unlock button on the key fob, then attempting to start your car. If this does not work then the battery on the key needs to be replaced.