How to Open Your 2005 Mercedes-Benz SL500 Key Fob and Change Battery

How to Open Your 2005 Mercedes-Benz SL500 Key Fob and Change Battery

If your auto keyless entry remote is no longer working properly, the cell battery likely needs to be changed. It's not difficult to change the battery in your keyless entry remote with our ultimate guide. All tools, that you need is outlined in this article.

What type battery remote key fob require

Replacing batteries in key fob require 2xCR2025 batteries and flat head screwdriver. Prepare these materials and tools before opening and make sure to match the size of your keyless entry fob's batteries.
  • flat head screwdriver
  • 2xCR2025 batteries

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

A button cell battery installed inside the your remote key fob. Remove any internal key before you try to pry apart the keyless entry remote.

Carefully try to pry apart your key with pry tools. Change CR2025 batteries with flat head screwdriver.

Get new batteries and install it in fob’s body. Battery must be placed with the same position as was an old. Your key fob will not work if you by mistake place battery wrong way.

Before assembling fob’s case, make sure that all functions works by testing buttons on circuit board.

The last thing to do is put your cover back on fob. Carefully try to put the two halves together by hands from top to bottom. Check your keyless entry remote shell for gaps. If it is not tightly closed try to repeat last step.

Key Fob Battery Replacement 2005 Mercedes-Benz SL500 Video

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Still not working? Buy new one

Frequently Asked Questions

Key fob of Mercedes-Benz SL500 use 2xCR2025 batteries. Most CR2025 batteries are under $4-6 build upon the brand, size packaging and type you buy. Take your old battery to the store, to find a proper replacement.

Usually, after remote key fob battery change, you do not need to reprogram. Don't be scare of this procedure, because often it's described in user's manual.

Yes, you can replace battery in your 2005 Mercedes-Benz SL500 remote key fob yourself. Most hard part is to disassembly fob’s case. It's pretty simple with our instruction.

The cost to change the battery inside keyless entry remote can run anywhere $50-600 depending on the car and the service station.

Keyless entry remote batteries in Mercedes-Benz SL500 should be replaced every 3-4 years, although this will differ based on usage and quality. If your key fob decreased signal strength, you should change batteries before it stop working and make trouble for you.

If your car need multiple clicks to unlock or lock doors, signal strength reduced, has low key battery indicator on dashboard or key fob buttons not working, it's probably battery replace inside remote key fob required. Currently installed battery is dead with a high probability, but if it's not fix problem, key fob replace or repair needed.
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Fob Compatibility:

  1. FCC ID: IYZ 3312
  2. Models: 2000-2006 Mercedes-Benz S500