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Peugeot 308 Key Fob Replacement Peugeot's 308 is slightly old, but it is still striking. It's not the most luxurious car in its class, but it's an enjoyable and comfortable drive. We get asked frequently at Coded Car Keys to replace peugeot key fobs. The following tips can aid in solving the issue whether it is ongoing or intermittent. Water Damage If you accidentally drop your key fob in the puddle, or it gets wet while kayaking, canoeing, rafting, or canyoning the fob is more likely to be damaged by water. Keep your key fob in a dry, dry bag each time you are outdoors or engage in things that expose it to a lot of water. It's also essential to make sure that the fob is completely dried before you open the fob and then use it. If you detect any smells coming from the fob, like an industrial-like liquid smell or that of windshield washer fluid, it's another sign that it's submerged in water. A wet circuit could cause the battery's power to be depleted or even explode. If you're able to pull your key fob 308 out of whatever body of water it got stuck in turn the button upside down and shake out as much water as possible before opening the case. Take the battery out, and then wipe the circuit board clean using a cotton swab that is dipped in 90 percent alcohol. Other causes why your Peugeot 308 remote entry keyless system may not function include a dead coin-cell battery or receiver module issue, signal interference or a faulty chip. If none of these are the problem, you can try resetting your system by disconnecting the battery at 12 volts for about 15 minutes. Dead Coin Battery Peugeot cars are equipped with a remote start system that allows the driver to start the car from afar, warming up or cooling down the vehicle prior to getting in. This feature is extremely beneficial, especially in the cold winter months. However, sometimes the remote start system stops working due to a variety of reasons, such as the battery in the coin is dead. A coin-shaped battery that is in the key fob will last a time of between two and four years, based on how frequently it is utilized and where it was purchased. The date for use-by is typically printed on the packaging or written in the manual. If the key fob has stopped functioning after being exposed to pure tapwater, you need to remove the battery and clean the electronic chip with an absorbent paper towel that has been soaked in isopropyl ethanol. Then dry the chip thoroughly before replacing. In case of exposure to soapy or salty water, the chip might be fried and you will require replacing the key fob entirely. If you're not certain the battery is faulty you can check its voltage with a multimeter set to the car's voltage range and connected to the terminals for minus and plus. The voltage should read approximately 12-13 volts but if it is lower, then the battery needs to be replaced. If you want to, you can try to reset the onboard computer by disconnecting the battery at 12 volts for a short period of time, and then reconnecting it in reverse order (positive cable first and then negative). The engine should start after this. Faulty Receiver Module If you're unable to see the “Key Detected” message on your dashboard, it's possible that the receiver module has discovered a problem. It's the component that sends an alarm to the car when your key fob is activated, it also acts as an immobiliser. It also stops it from starting until the correct key is used. This could be due to a range of factors including water damage or simply ageing. If your Peugeot 308 key fob has been exposed to dirty tap water, for instance the electronic chip inside the device will be damaged. In this scenario, you'll have to remove it and thoroughly clean it using isopropyl or an electronic cleaner. Once it's dry, you can put the battery back in and test it again. If the issue is not resolved, it is recommended to see the local Peugeot expert or locksmith. They can use a diagnostic tool in order to pinpoint the issue and repair it. It can be a stressful experience to lose your Peugeot car key. However, a qualified auto locksmith can address the problem in minutes. They can program your vehicle and cut a fresh, functioning key for you. Find the nearest locksmith. Faulty Electronic Chip The chip in the Peugeot 308 key fob plays a vital part in the remote control system. If the chip is damaged, you may have problems starting your car or get a message saying “anti-theft”. If reprogramming happens, the only way to fix the issue is to get a new key. Luckily, professional auto locksmiths can complete the task in the shortest time. The chip inside your Peugeot 308 key fob can become faulty due to sweat, water damage dirt, or any other cause. If your Peugeot key fob was exposed to soapy or dirty water, it needs to be cleaned right away. You can clean the electronic component with paper towels soaked with isopropyl Alcohol. The battery must then be allowed to fully dry. Sometimes keys may cease to function due to radio interference. This can be caused by other devices that operate at the same frequency as your Peugeot key fob. It can also be caused by weather conditions or objects in the vicinity of the vehicle. If you have this issue you should visit a Peugeot dealership. The Peugeot key fob 207/308 is extremely delicate and requires care. You should not drop it or throw it around. If you lose something, try to find it as quickly as you can. You can reset all on-board computers by disconnecting the 12 volt battery for a few minutes. Disconnect the negative cable before the positive.