What is the method for replacing the battery in a Citroën key?
2 Answers
Citroën key battery replacement method is: 1. Use a small flat-head screwdriver to gently pry open the seams around the key shell; 2. Open the outer shell; 3. Use a small flat-head screwdriver to pry out the old battery and replace it with a new one. Citroën models include: Citroën C5, Citroën C6, Citroën C3L, Citroën C3XR, Citroën C-Quatre, etc. Taking the 2020 Citroën C6 as an example, it is a mid-size car with body dimensions of: length 4980mm, width 1858mm, height 1475mm, wheelbase of 2900mm, and a curb weight of 1590kg.
Changing the battery in a Citroën key is actually quite simple. I found it straightforward when I did it myself last year. First, prepare a new battery—usually a CR2032 coin cell, which you can buy at a supermarket or online. On the back of the key, there’s a small notch or gap. Use a coin or a small screwdriver to gently pry open the casing, being careful not to apply too much force to avoid cracking it. Once open, you’ll see the old battery in its slot. Carefully remove it with tweezers or your fingers, making sure to note the orientation of the positive and negative terminals—most have the positive side facing up. Then, insert the new battery, align it properly, and press it firmly into place. Finally, close the cover and press it a few times until it snaps shut. Test the remote locking function; if it doesn’t work, the battery might not be seated correctly or the type may not match, requiring a retry or a different brand. The whole process takes just a few minutes, saving you the hassle and cost of a dealership visit. Keep spare batteries at home or in your car for emergencies, especially in winter when battery life tends to drop. Having done it a few times now, I find it both satisfying and convenient.
