How to Replace the Battery in a 2000 Mercedes-Benz S430 Key Fob

How to Replace the Battery in a 2000 Mercedes-Benz S430 Key Fob

Key fob allow easy access to your auto. Once the remote key fob battery is dead or weak you’ll not to be able unlock doors remotely. Yes, it is possible to change the battery in your remote key fob, and it’s easier than you think. All tools, that you need is described in this article.

What type battery does 2000 Mercedes-Benz S430 remote key fob take

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

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

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

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

Now it's time to install new batteries in keyless entry fob's shell. Battery must be placed with the same polarity as was an old. Your remote key fob will not work if you by mistake put battery wrong way.

Before assembling fob’s case, verify that everything working good by testing buttons on key fob.

The last thing to do is put your cover back on fob. Accurately try to assemble the pieces together by hands from top to bottom. If your key body tightly closed, we done. If not, repeat the last step.

How to change the battery video guide

HOW TO Mercedes Benz KeyFob Battery Replacement. Smart key keyless BRC c230 sl500 e320 ml320 DIY Fix

Still not working? Buy new one

Frequently Asked Questions

Remote key fob of Mercedes-Benz S430 use 2xCR2025 batteries. Price for CR2025 batteries are under $4-6 depending on the type, brand and size packaging you buy. You can take old battery to the store, to find a proper replacement.

Often, after keyless entry remote battery change, reprogramming not required. Don't be scare of this procedure, because often it's described in user's manual.

Changing your key fob battery is simple to do in 2000 Mercedes-Benz S430. Most of car manufacturers think of the clients and make a special hole for keyless entry remote disassembly.

The cost to change the battery in keyless entry remote is in range from $30 to as high as $500 depending on the brand and the service pricing.

You should change batteries inside key fob of modern cars at least once in three years. The lifetime of battery differ on frequency of use, quality and operating conditions. Lithium cells usually will last longer.

If your Mercedes-Benz signal strength reduced, need multiple clicks to unlock or lock doors, fob's battery more than 4 years old or key fob buttons not working, in most cases battery replace inside remote key fob needed. Installed battery is weak or dead with a high probability, but if it's not help, key fob replace or repair required.
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Other Mercedes-Benz Models:

Fob Compatibility:

  1. FCC ID: IYZ 3312
  2. Models: 2000-2006 Mercedes-Benz S430