Peugeot 208 Key Replacement It is recommended to leave the replacement of Peugeot keys 208 to auto locksmiths equipped with the necessary equipment and technical skills They can design and program keys faster and cheaper than a dealership A dead coin battery is most likely to be at fault if your key fob stops locking or unlocking doors There are other reasons why the key may be malfunctioning Dead Coin Battery A dead coin battery will stop your Peugeot 208 from locking or unlocking and won't start the engine If this is the case, you'll have to make use of the backup starting procedure that is described in the owner's manual of your vehicle Another reason the 208 won't start is that the spark plugs have been worn down The spark plugs are responsible for igniting the fuel which starts the engine However they have a short lifespan They will eventually break down when they aren't used enough Luckily, there's an easy solution for this issue Check the voltage of your battery with a multimeter If the voltage is less than 11,5 volts then it's time to replace it If the battery is corroded it is crucial to clean its contacts This can be done by removing the rubber covers off the two battery terminals, and then using a wirebrush to eliminate any corroded battery parts Then, you should connect the cables that connect the positive and negative poles Water Damage If your 208 won't turn on and the battery isn't flat then you should check that the spark plugs are functioning It is possible that they are overly filthy, making them unable to spark This is easily fixed by cleaning the spark plugs in the workshop Peugeot automobiles use a transponder key that is compatible with the car's immobiliser system This ensures that only the right key can turn the engine If the chip in the Peugeot key is damaged, it won't send the correct signal to the vehicle This is a typical issue that is often caused by water damage This is a typical issue in areas with colder temperatures where the vehicle has been exposed to snow or rain In this case, contact a trusted locksmith who will have the required tools and equipment to modify the key They also have the most up-to-date technological know-how and machinery required to make the Peugeot 208 smart key The process shouldn't be more than 15 minutes Contacts of the battery may be damaged Peugeot replaced the old transponder chips using a new version that makes use of electronic components that are mounted on a circuit board The new system is great when it's new, however the circuit boards wear out over time and cease to function properly This can stop the immobiliser from triggering so that your vehicle will not start If this is the case it's a good idea to contact a Peugeot specialist or locksmith Another common issue is when the battery of the key fob begins to fail, which causes the key blade to stop getting into the lock A car locksmith can replace the battery and cut a fresh blade for you, it's typically a quick fix https//wwwthekeylabcouk/peugeot-car-keys/ If your Peugeot key fob stopped working after dropping it on the floor, getting exposed to a sudden downpour or accidentally washing it, it could be due to a malfunctioning receiver module The receiver module is responsible for transmitting radio signals to the onboard computer which regulates the central locking system of your Peugeot vehicle The rubber seals on the key fob stop water from getting to the electronic chip Water can damage the chip if it is exposed to water for a long time Submerging the key fob in sea water at the beach or throwing it into the pool can be especially damaging because of the high salt content If your Peugeot spare key fob stops working, you'll need to have the module replaced This can only be done by an expert auto locksmith or Peugeot specialist Peugeot keys like other cars are secured by an immobilizer device This requires the right codes to start the car This is the reason why you should only go with a knowledgeable Peugeot locksmith to take on the job of designing and programming an appropriate replacement Computers with faulty on-board computers The on-board computer in your Peugeot is responsible for many of the systems in your car, including power windows and airbags The on-board computer displays a code if something goes wrong This code is saved in the system and stays there until the problem has been resolved This could mean that the on-board computers to be replaced The most common reason for the warning light of the airbag to flash is corrosion or loose connections within the sensor This could be due to wear and tear, aging or exposure to salt and moisture This issue must be addressed as soon you can, since an airbag that is malfunctioning could pose a risk in the event of an accident If you encounter an error message stating that the card is not found on your Peugeot key fob, the battery inside the key fob may be dead or weak This can prevent the key fob from sending a signal that disables the immobilizer on your vehicle's standard You can test this by pressing the unlock button on the key fob and then attempting to start your vehicle If this doesn't work the battery on the key needs to be replaced