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10 Things You'll Need To Be Educated About Peugeot 308 Key Fob
Peugeot 308 Key Fob Replacement

Peugeot's 308 might seem somewhat old-fashioned however it's still appealing. It's not the most luxurious car in its class, but it is a relaxing and civilised drive.

Here at Coded Car Keys we are often asked to replace peugeot 308 key fobs. The following tips will help whether the problem is persistent or intermittent.

Water Damage

If you accidentally drop your key fob in the puddle, or it is soaked while kayaking, canoeing, rafting, or canyoning, the fob is likely to be damaged by water. The best way to avoid this from happening is to keep it in a dry container when you're outdoors or performing activities in which the fob may be exposed to a lot of water.

You'll also want to ensure that the fob is dry prior to opening it and re-using it. If you detect any odors from the fob (such as industrial fluid or windshield washer fluid) It's another sign that it has been submerged.

A wet circuit could cause the battery's power to be depleted or even explode. If you can remove your keyfob 308 from the water it is best to turn the button side up and shake as much water out as you can prior to opening the casing. When you've opened it, remove the battery and wipe down the circuit board with the help of a cotton swab that has been dipped in 90-percent isopropyl alcohol.

Other causes why your Peugeot 308 remote entry keyless system may not work include a dead coin-cell battery or receiver module issue signal interference or a malfunctioning chip. If none of these are the issue you can reset the system by disconnecting 12 voltage battery from the car for 15 minutes.

Dead Coin Battery

Peugeot cars are equipped with a remote-start system that allows the driver to start the car from a distance by warming up or cooling down the vehicle prior to getting in. This feature is very beneficial, especially in the cold winter months. Remote start systems may be stopped for a variety of reasons, such as an inactive coin-battery.

A coin-shaped battery located inside the key fob can last for a period of two to four years, based on how frequently it is used and where it's purchased. The date of use is printed on the packaging or in the user manual.

If the key fob stops working after being exposed to pure tapwater, you need to remove the battery and clean the electronic chip with a paper towel soaked in isopropyl ethanol. Then dry the chip thoroughly before replacing. If the key fob was exposed to salty or soapy water, it could have caused the chip to become damaged. You'll need to replace it.

If flip key 're not sure whether the battery is in good condition you can check its voltage with a multimeter attached to both the terminals plus and minus. The voltage should be between 12-13 volts, but if it's lower, then the battery needs to be replaced. You can also try to reset your on-board computer by disconnecting the battery at 12 volts for a few minutes, and then reconnecting it in reverse order (positive cable first, then negative). The engine should be able to start after this.

Faulty Receiver Module

If you don't get the "Key Detected", it could be the receiver module malfunctioning. It is the part which sends out the signal when your key fob activates. It also functions as an alarm and blocks the car from starting without the correct key.

The cause could be many causes, such as water damage or simply the aging process. If your Peugeot 308 key fob has been exposed dirty tap water, for example the chip that is located on the inside will be damaged. In this situation, you'll have to remove it and thoroughly clean it using isopropyl or electronic cleaner. When the battery is dry you can attempt to test it again.

If the issue isn't resolved, it's probably a good idea to seek out an area Peugeot specialist or locksmith. They can use the diagnostic tool to pinpoint the problem and repair it.

It is stressful to lose your Peugeot car key. A professional auto locksmith will be able to solve the issue in minutes. They can program your vehicle and cut a new functioning key for you. Find a locksmith near you.

Faulty Electronic Chip

The electronic chip that is in the Peugeot 308 key fob is a very crucial component of the remote control system. If it gets damaged, your car may not start or receive a message saying "anti-theft active". In this scenario the only option is to replace the key. Fortunately, auto locksmiths with experience are able to provide this service in the shortest time.

The chip in the chip of your Peugeot 308 key fob can be damaged by water damage, sweat dirt, or other reasons. If your Peugeot key fob has been exposed to soapy or dirty water, it must be cleaned right away. You can wipe the electronic component with the help of a towel that is soaked in isopropyl Alcohol. After that, you should let the battery dry completely.

Sometimes keys may stop working because of radio interference. This could be due to other devices operate on the same frequency as your Peugeot keyfob. It could be caused by unsafe conditions or objects that are near to the vehicle. If you encounter this issue it is advised to visit the Peugeot dealership.


The Peugeot key fob 207/308 is extremely delicate and requires a lot of attention. It is imperative not to throw or drop the key fob. If you lose something, try to locate it as quickly as you can. You can reset all the on-board computers by disconnecting the 12 volt battery for a short period of time. Make sure you disconnect the negative cable first before connecting the positive.