How to Replace the Battery in a Peugeot 408 Car Key?
4 Answers
Peugeot 408 car key battery replacement method is as follows: Remove the mechanical key and locate the hole used to remove the mechanical cover. Insert the mechanical key into the hole and gently pry open the key with your hand to open the key cover. Remove the old battery, install the new battery, close the car key cover, and finally reattach the mechanical key. Precautions for car key usage are as follows: 1. During daily use, do not place the key near high-power appliances such as televisions, microwaves, washing machines, or computers, as these appliances can reduce the battery life of the remote. 2. Do not expose the key to extremely cold environments below 0°C or extremely hot environments above 50°C, as this will significantly decrease battery life.
I often encounter dead key fob batteries with my Peugeot 408 too. Changing the battery is quite simple but requires care. First step: confirm the battery model - Peugeot 408 usually uses CR2032 coin cells, which you can buy at supermarkets or online, just make sure not to get the wrong model as it affects lifespan. Second step: use a plastic pry tool or coin to gently pry open the back cover at the middle seam - don't apply too much force or the plastic casing may crack. Third step: remove the old battery, clearly note the polarity (usually positive side up), insert the new battery ensuring proper contact alignment. Finally, snap the cover back on firmly and immediately test the remote range. I recommend keeping spare batteries in your car. Over time, the contacts may accumulate dirt - clean them when replacing the battery. The whole process takes just 2-3 minutes, saving you a trip to the dealership.
Replacing the battery in a Peugeot 408 key isn't complicated if you remember key points. The battery model is usually CR2032 - buy high-quality ones to avoid counterfeits. Wash hands before handling to prevent static discharge, and avoid touching circuit boards directly. The key's back cover has clips; use thin tools like a small knife or fingernail to gently pry open edges without forcing. When you see the battery, remove the old one and insert the new one with the positive side facing up (otherwise it won't work). Press the cover firmly after installation and immediately test unlocking the car door. The key's dustproof design is weak, so maintain clean conditions during replacement to prevent dust ingress. Regular battery checks can reduce malfunctions - typically replacing every 1-2 years ensures reliability.
Replacing the Peugeot 408 key battery yourself is cost-effective and convenient. A CR2032 battery costs just a few bucks, and you can use a coin or small screwdriver as tools. Gently pry open the seam on the back of the key to avoid damage. When replacing the old battery, ensure the new one is oriented correctly with the positive side facing up. After closing the back cover, test the remote function. It's wise to keep a spare battery handy in case of sudden power loss.
