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Peugeot 308 Key Fob Replacement
Peugeot's 308 may be catching on a little however it's still appealing. It's not the most luxurious vehicle in its class, but it's an enjoyable and comfortable drive.
We often get asked at Coded Car Keys to replace peugeot key fobs. These tips can aid whether the issue is ongoing or intermittent.
Water Damage
When you accidentally leave your key fob in a puddle or splash it with water when kayaking, swimming, canoeing, rafting or canyoning, it's likely to be damaged by water. Keep your key fob in a dry bag whenever you are outdoors or engage in things that expose it to excessive amounts water.
You should also make sure that the fob is dry prior to opening it and reusing it. If you detect any odors emanating from the fob (such as industrial liquid or windshield washer fluid) This is a further indication that it's submerged.
A circuit board that's damp can cause the battery to lose its energy or even explode. If you're able to pull your 308 key fob out of the water in which it was stuck in then flip the button side down and shake it out as much water as you can before opening the case. Take the battery out, and then wipe the circuit board down using a cotton swab that has been submerged in 90 percent alcohol.
Other reasons your Peugeot 308 remote keyless entry system may be unable to function could be due to an empty coin battery, receiver module issues signal interference, an electronic chip that is damaged. If none of the above is the issue you can reset the system by removing the 12 volt battery from your car for 15 mins.
Dead Coin Battery
Peugeot cars are equipped with a remote start system that allows the driver to start the car from a distance while warming up or cooling down the vehicle prior to stepping inside. This feature is very beneficial especially during the cold winter months. Remote start systems can stop working for a variety reasons, including the dead battery in the coin-battery.
A coin-shaped battery found inside the key fob has a life span of two to four years, depending on how often it's used and the location where it was purchased. The date of use is typically written on the package or in the manual.
If the key fob has stopped working after exposure to clean tapwater, remove the battery and clean the electronic chip using an absorbent paper towel that has been soaked in isopropyl ethanol. Then, dry the chip thoroughly before replacing it. If exposed to salty or soapy water, the chip could be damaged and you'll require replacing the key fob altogether.
If you're unsure if the battery is defective you can check the voltage using a multimeter connected to both the minus and plus terminals. If the voltage is less than 12-13 volts it is time to replace the battery. Alternatively, you can try to reset your on-board computer by disconnecting the battery at 12 volts for a short period of time, and then reconnecting it in reverse order (positive cable first, then negative). The engine should then start after this.
Faulty Receiver Module
If you don't see the "Key Detected" It could be the receiver module defective. It's that part that sends an indication to the car when your key fob is activated that also acts as an immobiliser. It stops it from starting unless the key that you want to use is present.
The cause could be various reasons, such as water damage or just aging. If the electronic chip within your Peugeot 308 keyfob is damaged due to dirty tap water it could be because the keyfob was contaminated with it. In this instance, you'll have to remove it and thoroughly clean it with isopropyl or an electronic cleaner. When the battery is dry you can try it again.
If the issue persists, it's probably a good idea to see a local Peugeot specialist or locksmith. They can utilize an instrument for diagnosing to identify the issue and fix it.
It can be stressful to lose your Peugeot car key. However, a reputable auto locksmith can fix the issue in just a few minutes. They can program your vehicle and cut a new, working key for you. Click here to locate a locksmith near you.
Electronic chip malfunctions

The chip inside the Peugeot 308 key fob is a very important part of the remote control system. If the chip is damaged, you could encounter issues starting your car or receive a message that says "anti-theft". In this situation, the only solution is to replace the key. Auto locksmiths who are professionals are able to provide the fastest possible time.
The chip inside your Peugeot 308's key fob could be damaged due to different reasons, including sweat, water damage, or dirt. If your Peugeot key fob has been exposed to soapy or dirty water, it needs to be cleaned immediately. The Keylab can clean the electronic component using paper towels soaked with isopropyl Alcohol. The battery should be allowed to completely dry.
Radio interference can cause the key fob to stop functioning. This is usually caused by other devices operate on the same frequencies as your Peugeot keyfob. This can be caused by bad conditions or objects close to the vehicle. If you have this issue, it is best to visit an Peugeot dealership.
The Peugeot 207/308 Key Fob is delicate and needs special care. It is not recommended to drop it or throw it around. If you lose it, try to locate it as quickly as is possible. You can reset all the on-board computers by disconnecting the battery that is 12 volts for a few minutes. Make sure you disconnect the negative cable first before connecting the positive.