Mod DetailsPremiumNo Difficulty Mod ID1645 For Linkhttps://www.evilution.co.uk/mod/roadster-key-fob-battery.htm Copy to Clipboard
How Do I Know It Needs Changing?
When the battery gets low, the indicators will flash nine times in quick sucession when you lock or unlock the car. From this point onward, you have approximately 100 uses of the remote central locking fob before it won’t open the car any more.
Ideally the battery should be changed on every service but they can usually last 2 years.
What Battery Do I Need?
Roadster 452 = CR1225
Roadster 452 with Infrared = 2x CR1225
Infrared keys were fitted to Japanese smarts due to their RF restrictions. However, they seem to be appearing all around the world.
The Ideal Key Battery?
The best are the Renata batteries because they are factory fitted batteries for Swatch watches and also factory fitted in most smart keyfobs as standard.
They are Swiss made cells that cost less and last longer than other imported and no name batteries.
Fitting The Battery
Roadster 452 Three Button Keyfob
Here is the key and the new battery, remove the key from any keyrings. To say you have piles in English is unfortunate, in French, it means you have batteries.
Place a flat blade screwdriver into the back of the key and separate the two parts.
Place the screwdriver into the cutout (circled red) and lever the PCB out of the key.
This is what you will be left with, you can now access the battery.
Pry the old battery out. It is important to have your battery ready.
On one side is a pair of sprung tabs, you need to push the battery against the tabs and push down at the back to seat it correctly. Do this within 2 minutes of removing the old one.
Reassemble the key and dispose of the battery safely.
That’s it for another year.