BMW remote keys have a reputation for the rubber buttons wearing out. Thankfully it’s not that hard to give them a spruce up.
Both of the keys that came with the car look the same. The Lock button is just sticky mush that doesn’t actually respond unless you mash your finger inside the rubber, and all the diagrams have worn off.
Now you can see the horror. The mashed up rubber. Also note in the above photo, the black thing at the top of the key with writing on it, that is the EWS transponder chip. These don’t tend to be held in with anything, and will take any opportunity to fall out and piss off somewhere hard to find it again. Take it out and put it somewhere safe. Don’t lose it or its a new key plus coding.
The ones I bought have the provision for a red light to flash through the housing. Unfortunately my older style keys don’t have the light, it’s where the transponder lives, so I had to cut that off the new button pads. This did need further trimming to fit the EWS chip in snuggly.
The old button pad is held in by being moulded through small notches in the key housing. You can push the old rubber pads out from the front, but if they are still stuck in there you may need to cut around the edges to help it along.
This took a lot of trimming to fit the transponder chip in, and also to fit a capacitor that sticks out on the circuit board. I had to trim along the orange line to give it space, or it would push the Lock button outwards
Over all though, for the $1.09 per button pad, it’s a steal and such an easy way to give it new life. Sometimes it’s the small things that are the best.