2004 Mercedes-Benz SLK230 Key Fob Battery Replacement Guide

2004 Mercedes-Benz SLK230 Key Fob Battery Replacement Guide

If your auto key is not working perfectly, the cell battery surely needs to be changed. In this post, you’ll benefit from knowing how to disassembly Mercedes-Benz remote key fob and replace a dead battery yourself. If you gonna solve to do it at home near SLK230, follow our instruction, but don't forget to check everything you need before you start.

What kind of battery keyless entry remote require

Before going to open key fob check all that you need: flat head screwdriver and 2 CR2025 batteries.
  • flat head screwdriver
  • 2xCR2025 batteries

Simple steps to change the battery in your car's key fob

Inside of your remote key fob installed tiny button cell battery. Move the key out of the way if it is in the keyless entry remote.

Carefully try to open your remote key fob with hands or flat head screwdriver. Remove 2 CR2025 batteries with flat head screwdriver.

Now it's time to install new batteries in fob’s shell. Every battery has a negative and positive side and if you put the wrong connector down, the charge cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.

Before assembling fob’s case, check that all functions works by pressing buttons on remote key fob.

At this point squeeze fob’s back cover together. Line your body pieces together and put it in place by hands from top to bottom. If your remote key fob case firmly closed, we done. If not, repeat the last step.

Key Fob Battery Replacement 2004 Mercedes-Benz SLK230 Video

SOLVED - Mercedes Benz Keyfob Battery Replacement | Smart Key Fob Dead Batteries

Still not working? Buy new one

Frequently Asked Questions

Key fob of Mercedes-Benz SLK230 use 2xCR2025 batteries. Most CR2025 batteries are under $4 build upon the size packaging, type and brand you buy. You can take old battery to the store, to find a proper replacement.

Usually, after key fob battery replace, reprogramming not required. Don't be scare of this procedure, because often it's described in user's manual.

Yes, you can replace battery in your 2004 Mercedes-Benz SLK230 key yourself. Most difficult part is to open fob’s case. It's pretty simple with our guide.

Car service cost for replace the battery in key is $50-600 depending on the brand.

Keyless entry remote batteries in Mercedes-Benz SLK230 should be changed every three years, although this will vary based on usage and battery quality. If your keyless entry remote reduced signal strength, you should replace batteries before it stop working and make trouble for you.

These signs will alert you that it's probably time to replace battery in your Mercedes-Benz SLK230: multiple clicks to unlock or lock doors required, low key battery indicator on dashboard, you didn't change battery more than 4 years and signal strength reduced.
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Other Mercedes-Benz Models:

Fob Compatibility:

  1. FCC ID: IYZ 3312
  2. Models: 2000-2004 Mercedes-Benz SLK230