Peugeot 208 Key Replacement
It is best to delegate the replacement of Peugeot keys 208 to auto locksmiths with the equipment and skills. They can make and program new keys much faster than a dealership would and at a lower cost.
A dead battery for your coin is most likely to be the cause if your key fob stops locking or unlocking doors. There are also other reasons that the key could be malfunctioning.
Dead Coin Battery
A dead battery can stop your Peugeot 208 from locking and unlocking, and also stopping it from starting the engine. In this scenario you'll need employ the alternate method of starting found in your vehicle's owner's manual.
The spark plugs might also be worn out. The spark plugs light the fuel to start the engine. However, they have a limited time of life. If they aren't used enough, they will eventually fail.
There is a simple solution to this issue. The best way to solve this issue is to check the voltage of your car battery with a multimeter. If the voltage falls below 11,5 volts, it's time to replace it. If the battery is corroded it is necessary to clean its contacts. This can be accomplished by removing the rubber covers off the two terminals of the battery, and then using a wirebrush to eliminate any parts of the battery that are corroded. Then, reconnect the positive pole cables to the negative.
Water Damage
If your 208 will not start and the battery has not gone flat, you should inspect the spark plugs. You may find that they're filthy and don't spark. This is easily fixed by cleaning the spark plugs in a workshop.
Peugeot cars are equipped with keys that are transponder-type and works with the car's immobiliser system. This guarantees that only the right key is able to turn the engine. If the chip in the Peugeot key is damaged then it will not send the correct signal to the vehicle.
Water damage is a common cause of this issue. peugeot car key replacement G28CarKeys is a typical issue in colder climates where the vehicle has been exposed to snow or rain. If this is the case, you should get in touch with a reputable locksmith who will have all of the equipment and tools needed to reprogram the new key. They will also have the latest technology and machinery needed to make the Peugeot smart key. The process should not take more than 15 minutes.
Faulty battery contacts
Peugeot changed from the carbon-encased transponder chips to an entirely new type of chip that incorporates electronic components in circuit boards. This new system works well when it's brand new, but over time the circuit boards begin to degrade and stop working correctly.
This could stop the immobiliser from activating so the vehicle won't start. If this is the case, it's recommended to seek out a Peugeot specialist or locksmith.
A common issue is when the battery of the key fob begins to fail. This causes the blade of the key to stop feeding into the lock. A locksmith from your vehicle can replace the battery and cut a fresh blade for you, it's normally a quick fix.
Faulty Receiver Module
It could be that the receiver module has a problem in the event that your Peugeot key fob stops working after being dropped on the floor, or exposed to a stormy rainstorm, or accidentally washed. The receiver is responsible for transmitting radio frequency signals to the onboard computer which controls the centralized locking system in your Peugeot vehicle.
The key fob itself has rubber seals that prevent water from getting to the electronic chip inside. However, prolonged exposure to water may penetrate these seals and damage the chip. The high salt content in the ocean or pool could cause damage to the key fob, especially if it is submerged.

The module must be replaced if your Peugeot spare key is no longer working. This can only by done by an Peugeot specialist or an expert auto locksmith. In contrast to other vehicles, Peugeot keys are protected by an immobilizer that is unique and requires the right coding to start the engine. This is the 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 variety of systems inside your car, including airbags and power windows. If something goes wrong with these systems, they will usually display a code that identifies the problem. The code is stored within the system and will remain there until the problem is solved. Usually, this will mean replacing the onboard computer.
The most frequent cause for the warning light for airbags to flash is corrosion or loose connections within the sensor. This could be due to wear and tear, ageing or exposure to moisture and salt. It is imperative to have this issue addressed as soon as possible, as an airbag that is not functioning properly could be risky in the event of an accident.
If your Peugeot is showing a card detected as not present error then the key battery in the key fob might be weak or dead. This could prevent the key fob from sending a signal that disables your vehicle's standard immobilizer. You can test this by pressing the unlock button on the key fob and then attempting to start your car. If this does not work it is likely that the battery will need replacing.