That Tim Guy

DIY: Replacing the Battery in your Smart Key

Car: 2008 Mazda MX-5 (Last year that this style key was used)

1. Remove the emergency key from the key card.
2. Open the rubber battery door. On the left side (opposite side of emergency key) there is a thin piece of rubber that wraps around the bottom side profile corner. On the long side there is a small opening about 3/4″ from the bottom. In this opening, the rubber piece can be pried away from the key card. Something with a small tip should be used, such as a paperclip end to lift the rubber away. (Be careful not to damage the key card)
3. Once the battery door is open, shake or tap the key card gently to loose the battery. It will fall out.
4. Replace with a new battery by sliding it positive (+) side up into the card. Battery is a 3V CR2025.
5. Close the rubber battery door and push the side portion back into the card. Voila!

The hardest part is removing that little rubber strip that is the battery door. The pictures should be self-explanatory.

This DIY was written for Miata.net in this thread.

Drove past this today and I had to grab a picture of my filthy car  next to it. There were some amazing burners on these walls. Hopefully more pictures to follow at a later date!

I figured I should give a quick review of this product and supply some pictures since everyone says this stuff is amazing. RaggTopp convertible protectant is…well…amazing. So far the product has been on the car for about 2 months. I applied RaggTopp right after getting the top replaced on my MX-5. When it rains the water literally beads right off of my canvas top. I am curious to see how it will hold up through the winter and I do have high hopes so far.

I must admit I was a little skeptical at first spending $20 USD on one (1) can of RaggTopp and I was nervous to be spraying this onto my top. Application was relatively easy. I kept a separate rag ready to wipe any excess spray off of the windows/paint immediately after it hit the surface. I did notice on the few spots I missed some effort was required in removing the spray off the glass. I personally applied 3 coats and alternated the directions I sprayed each time to make sure everything was hit. I spent no more than 30 minutes doing it allowing 5-10 minutes in between coats.

Overall I am a satisfied customer. I also purchased the cleaner as well, but haven’t had to use that yet. Pictures are included to prove the water beads off. These pictures were taken after it had been raining for several hours.

RaggTopp Protectant

RaggTopp Protectant

I added a couple of pages for my Rabbit and my Miata. The Rabbit is worthy of its own page. I’m not sure if the Miata does or not since it hasn’t had anything special done to it, but I figured “Eh, why not.”