Peugeot Keys 101: The Ultimate Guide For Beginners
Peugeot 208 Key Replacement
It is best to delegate the replacement of Peugeot keys for 208 to auto locksmiths who have the necessary equipment and technical expertise. They can create and program keys more quickly and at a lower cost than dealerships.
If the key fob stopped locking or unlocking your doors it could be due to a dead coin battery. There are other reasons why the key might be malfunctioning.
Dead Coin Battery
A dead coin battery can prevent your Peugeot 208 from locking or unlocking and will not start the engine. In this scenario you'll need choose the alternate method to start found in your vehicle's owner's manual.

Another reason why your 208 may not start is because the spark plugs have been damaged. The spark plugs are responsible for sparking the fuel that powers the engine. However, they have a limited time of life. If they're not used enough to last, they'll eventually fail.
Luckily, there's an easy solution for this issue. Check the voltage of your battery with a multimeter. If it's below 11.5 Volts and you are not satisfied, then it is time to replace it. It is also essential to clean the battery's contacts in the event that it is damaged by corrosion. This can be done by removing the rubber covers off the two battery terminals and then using a wirebrush to remove any parts of the battery that are corroded. Then, you should connect your cables to connect the positive and negative poles.
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 are simply too filthy and don't spark. This can be fixed by cleaning the spark plugs in an workshop.
Peugeot automobiles use a transponder style key that works with the car's immobiliser system. This ensures that only a valid 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 frequent issue that can occur due to water damage. This is particularly prevalent in colder climates. the vehicle may have been exposed to snow or rain. In this situation, contact an experienced locksmith who will have the tools and equipment required to change the key's programming. They will also have the latest technology and machinery needed to create the Peugeot smart key. The process shouldn't last more than 15 minutes.
Faulty Battery Contacts
Peugeot changed from the old carbon encased transponder chips and introduced a new type of chip that incorporates electronic components in circuit boards. The new system is effective when it's fresh, however, over time, the circuit boards begin to degrade and stop working properly.
This could stop the immobiliser from working, so the vehicle won't start. If this is the case, it's a good idea to seek out a Peugeot specialist or locksmith.
Another common issue is when the battery of the key fob is dying, this causes the blade of the key to stop from entering the lock. A locksmith for cars can replace the battery and cut a fresh blade for you, it's usually a simple fix.
Faulty Receiver Module
If your Peugeot key fob isn't working after dropping it on the floor, being exposed to a sudden rain or accidently washing it may be due to a faulty receiver module. www.g28carkeys.co.uk is responsible for sending radio frequency signals to the on-board computer which controls the centralized locking system inside your Peugeot vehicle.
The key fob itself is fitted with rubber seals to prevent water from getting to the chip inside. However, prolonged exposure to water may penetrate these seals and damage the chip. Submerging the key fob into sea water at the beach or throwing it into the pool could be especially damaging because of the high salt content.
The module must be replaced if the Peugeot spare key isn't working anymore. This is only done by an expert auto locksmith or Peugeot specialist. As opposed to other cars, Peugeot keys are protected by an exclusive immobilizer system that requires the correct code to start the engine. This is why it is imperative that you should only trust the Peugeot locksmith to design and program a replacement.
Faulty on-Board computer
The computer on board of your Peugeot is responsible many features in your car, including airbags and power windows. The on-board computer will show a code if something goes wrong. This code will be saved in the system until the issue is resolved. In most cases, this will require replacing the onboard computer.
The most common cause of the airbag warning light to come on is corroded or loose connections in the sensor. This could be due to wear and tear, aging, or exposure to moisture and salt. This issue must be addressed as soon you can, as an airbag that is malfunctioning could be dangerous in the event in the event of an accident.
If you encounter a card not found error on your Peugeot key fob, the battery inside the key fob might be dead or weak. This will stop the key fob sending a signal that will disable the immobilizer in your vehicle. Try this by pressing the unlock key on the fob's key, then trying to start your car. If this doesn't work then the battery in the key needs to be replaced.