Peugeot 208 Key Replacement
Peugeot 208 key replacement is best left to auto locksmiths with experience who have the proper equipment and technical knowledge. They will be able to make and program new keys much quicker than a dealership and at a lesser cost.
A dead battery for your coin is most likely to be the cause the reason why your key fob isn't locking or unlocking the doors. There are other possibilities that the key is malfunctioning.
Dead Coin Battery
A dead coin battery can prevent your Peugeot 208 from locking or unlocking and will not allow you to start the engine. In this case you'll have to employ the alternate method of starting that is described in the owner's manual.
Another reason your 208 might not start is that the spark plugs have worn down. The spark plugs are responsible for sparking the fuel which starts the engine. They are only able to last for a short time.
peugeot 107 remote key replacement g28carkeys.co.uk 'll eventually fail if they're not used enough.
There is an easy solution to this issue. The best way to solve this issue is to test the voltage of your car battery with a multimeter. If the voltage is less than 11,5 volts, then it's time to replace it. If the battery has corroded it is essential to clean its contacts. This can be done by removing the rubber covers off the two terminals of the battery, and then using a wirebrush, you can remove any corroded battery parts. Then, you must reconnect the positive and negative pole cables.
Water Damage
If your 208 won't start and the battery hasn't gone flat, you should examine the spark plugs. It could be that they're dirty, causing them to not to spark. The spark plugs can be cleaned in an workshop.
Peugeot automobiles are equipped with a transponder that is compatible with the immobiliser. This guarantees that only the right key can turn the engine. If the chip inside the Peugeot key is damaged then it won't send the correct signal to the vehicle.
This is a very common issue that is often caused by water damage. This is a frequent issue in areas with colder temperatures where the vehicle is exposed to rain or snow. If this is the case, you should contact a reputable auto locksmith who has all of the tools and equipment required to change the key's programming. They also have the latest technology and the machinery needed to make a Peugeot 208 smart key. The process shouldn't take longer than 15 minutes.

Contacts with the battery may be damaged.
Peugeot replaced the transponder chips with a brand new model that utilizes electronic components mounted on a circuitboard. This new technology works great when it's fresh, however, over time, the circuit boards start to deteriorate and stop working correctly.
This can prevent the immobiliser chip from activating and causing your car to not start. If this is the case, it's a good idea to call a Peugeot specialist or locksmith.
A common issue occurs when the battery inside the key fob begins to die. 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, this is typically a quick fix.
Faulty Receiver Module
It could be that the receiver module is malfunctioning when your Peugeot key fob fails to function after being dropped on the floor, exposed to a stormy rainstorm, or accidentally washed. The receiver module is responsible for transmitting radio frequency to the onboard computer that controls the central locking system of your Peugeot vehicle.
The key fob itself is fitted with rubber seals to prevent water from reaching the chip inside. The chip can be damaged by water in the event that it is exposed water for a long period of. Submerging the key fob in ocean water at the beach or throwing it into the pool could be particularly damaging due to the high salt content.
If your Peugeot spare key fob stops working You'll need the module replaced. This is only done by a skilled auto locksmith or Peugeot specialist. Peugeot keys like other cars are protected by an immobilizer system. This requires the proper codes to start the car. It is for this reason that you should only rely on a Peugeot locksmith to design and program an alternative.
Computer malfunctioning on-board
The on-board computer of your Peugeot is responsible for a variety of systems in your car, including airbags and power windows. When something goes wrong in these systems, it will typically show a code that identifies the problem. This code is saved in the system and remains there until the problem is solved. Usually, this will mean replacing the on-board computer.
One of the most common reasons for the airbag light flashing is loose or corroded connections within the airbag sensor. This could be due to wear and tear, aging, exposure to salt and moisture. It is important to have this issue resolved as soon as you can, as a malfunctioning airbag can be risky in the event of an accident.
If your Peugeot is showing a card detected as not present error, then the battery inside the key fob may be weak or dead. This can prevent the key fob from sending a signal that disarms the immobilizer on your vehicle's standard. Try this by pressing the unlock key on the fob's key, then trying to start your vehicle. If this fails, then the key battery will need replacing.