Peugeot 208 Key Replacement
Peugeot 208 key replacement should be left to auto locksmiths with experience who have the right tools and know-how. They can program and create keys faster and less expensive than a dealership.
If your key fob stopped locking or unlocking your doors, it is likely due to a dead battery in the coin. There are also other reasons why the key may be malfunctioning.
Dead Coin Battery
A dead battery can stop your Peugeot 208 from locking and unlocking, and also making it impossible to start the engine. If this is the case, you'll need to apply the backup starting technique that is detailed in the owner's manual for your vehicle.
Another reason why your 208 might not be starting is because the spark plugs have been damaged. The spark plugs ignite the fuel to start the engine. However they have a short time of life. If they aren't used enough they will eventually fail.
There is a simple solution for this problem. The best way to solve this issue is to check the voltage of your car battery using a multimeter. If it's below 11.5 volts it is time to replace it. It is also important to clean the battery's contacts when it has corrosion. This can be accomplished by removing the rubber cover from the two terminals on the battery and then using a wirebrush to remove any corroded parts of the battery. Then, reconnect the positive pole cables to the negative.
Water Damage
If your 208 does not start and the battery has not fallen flat, it is time to examine the spark plugs. It could be that they are dirty and don't spark. This can be fixed by cleaning the spark plugs in a workshop.
Peugeot automobiles use a key with a transponder compatible with the immobiliser. This ensures that only the right key can turn the engine. If the chip inside the Peugeot key is damaged, then it won't send the proper signal to the vehicle.
This is a very common issue that can be caused by water damage. This is particularly common in colder climates where the vehicle might have been exposed to rain or snow. If this is the case, seek out a reputable auto locksmith who has all the tools and equipment needed to modify the new key. They also have the latest technology and equipment needed to make the Peugeot 208 smart key. The process shouldn't last more than 15 minutes.
Contacts to the battery are not working properly.
Peugeot replaced the old transponder chips with a new model that is based on electronic components mounted on a circuit board. The new system is fantastic when it's brand new, but the circuit boards begin to degrade with time and cease to function properly.
This can stop the immobiliser from activating so the vehicle won't start. Contact a Peugeot specialist, or a locksmith, if this is the case.
Another issue that is common is when the battery in the key fob begins to fail, which causes the blade of the key to stop being able to feed into the lock. A locksmith in your car can replace the battery and cut a new blade for you, it's normally a quick fix.
Faulty Receiver Module
It could be that the receiver module has a problem if your Peugeot key fob fails to function after being dropped on the floor, exposed to a sudden rainstorm or accidentally washed. The receiver is responsible for sending radio frequency signals to the onboard computer which controls the centralized locking system in your Peugeot vehicle.
The rubber seals on the key fob block water from reaching the electronic chip. However prolonged exposure to water can cause damage to these seals and the chip. The high salt content in the ocean water or pool could cause damage to the key fob if it is submerged.
The module will need to be replaced if the Peugeot spare key is no longer working. This can only by done by a Peugeot specialist or a professional auto locksmith. Peugeot keys are, unlike other vehicles, are secured by an immobilizer device. This requires the proper coding to start the car. It is for this reason that you should only rely on an authorized Peugeot locksmith to create and program an alternative.
Faulty on-Board computer

The on-board computer in your Peugeot is responsible for a number of the systems within your vehicle, from airbags to power windows. When something goes wrong in these systems, they will usually show a code that identifies the issue. The code is stored within the system until the issue is resolved. This may require the on-board computers to be replaced.
One of the most frequent reasons for the light coming on is loose or corroded connections within the airbag sensor. This could be due to wear and tear, aging, exposure to moisture and salt. This problem should be taken care of as soon as you can, because an airbag that is malfunctioning could be dangerous in the event in the event of an accident.
If your Peugeot is showing a card detected as not present error then the key battery inside the key fob may be dead or weak. peugeot 107 key replacement will stop the key fob sending a signal to deactivate the vehicle's immobilizer. You can test this by pressing the unlock button on the key fob and then attempting to start your car. If this doesn't work then the battery on the key is in need of replacement.