Peugeot 208 Key Replacement
Peugeot 208 key replacement should be left to auto locksmiths with experience who have the appropriate tools and know-how. They can program and create keys faster and less expensive than a dealership.
A dead battery for your coin is most likely to blame if your key fob stops locking or unlocking the doors. There are other causes why the key may 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 situation, you'll need utilize the backup starting method which is explained in the owner's manual for your vehicle.
Another reason why your 208 might not be starting is that the spark plugs are worn down. The spark plugs ignite fuel to start the engine. However they have a short lifespan. If they aren't utilized enough they will eventually fail.
Luckily, there is an easy solution for this problem. The best way to solve this issue is to measure the voltage of your car battery with a multimeter. If it's below 11.5 volts it is time to replace it. If the battery is damaged it is necessary to clean its contacts. This can be done by removing the rubber covers off the two terminals on the battery and then using a wirebrush, you can remove any corroded parts of the battery. Then, reconnect the positive and negative pole cables.
Water Damage
If your 208 won't start and the battery isn't empty, you must ensure whether the spark plugs are working. You may find that they are filthy and don't spark. This is easily fixed by cleaning the spark plugs in an workshop.
Peugeot automobiles are equipped with a transponder compatible with the immobiliser. This ensures that only the correct key can turn the engine. If the chip inside the Peugeot key is damaged, then it will not send the correct signal to the vehicle.
Water damage is a typical cause of this issue. This is a frequent issue in colder climates where the vehicle is exposed to snow or rain. If this is the case, get in touch with a reputable locksmith who will have all of the tools and equipment required to reprogram the new key. They also have the most up-to-date technology and equipment needed to create a Peugeot 208 smart key. The process shouldn't last more than 15 minutes.
Contacts to the battery are not working properly.
Peugeot changed from the old carbon encased transponder chips to an entirely new type of chip that relies on electronic components within circuit boards. The new system is great when it's brand new, but the circuit boards deteriorate over time and cease to function properly.
This can stop the immobiliser's function from being activated, meaning your vehicle will not start. Contact a Peugeot specialist, or a locksmith, if this is the case.
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. peugeot 207 key fob for cars will replace the battery, and then cut a new key blade for you. This is a quick solution.
Faulty Receiver Module
If your Peugeot key fob was not working after dropping it on the floor, or being exposed to a sudden downpour or accidently washing it or washing it, it could be due to a malfunctioning receiver module. The receiver is responsible for sending radio frequency signals to the on-board computer, which controls the central locking system inside your Peugeot vehicle.
Rubber seals on the key fob keep water from getting to the electronic chip. The chip can be damaged by water if it is exposed to water for a prolonged period of period of. Submerging the key fob into ocean water at the beach or throwing it into the pool could be particularly damaging due to the high salt content.
The module will have to be replaced if your Peugeot spare key does not work anymore. This can only be done by an Peugeot specialist or an expert auto locksmith. Peugeot keys unlike other automobiles, are protected by an immobilizer system. This requires the proper codes to start the car. This is why you should choose a reputable Peugeot locksmith with the task of creating and programming a replacement.
Computer with a problem on board
The on-board computer inside your Peugeot is responsible for a variety of the systems in your car, ranging from power windows to airbags. The computer on board will display a code when something goes wrong. This code is stored in the system and will stay there until the problem is solved. This could mean that the on-board computers to be replaced.

One of the most frequent reasons for the airbag light flashing is loose or corroded connections in the airbag sensor. This can be caused by wear and tear, age or exposure to moisture and salt. This issue needs to be taken care of as soon as you can, as an airbag malfunctioning could be dangerous in the event in the event of an accident.
If you see an error message stating that the card is not found on your Peugeot, the key battery inside the key fob might be weak or dead. This will stop the key fob sending a signal to disarm the immobilizer on your vehicle. You can test this by pressing the unlock button on the key fob and then attempting to start your vehicle. If this fails then the battery in the key fob is in need of replacement.