1998 Mercedes-Benz S500 Key Fob Battery Replacement Instructions

1998 Mercedes-Benz S500 Key Fob Battery Replacement Instructions

Key fob grant access to your auto. When the remote key fob battery is dead you lose your fob’s ability to use distance functions. Below, we explained how to disassembly your car remote key fob and replace your Mercedes-Benz key battery.

What type battery remote key fob require

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

Step by step guide

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

Accurately try to open your remote key fob with hands or flat head screwdriver. Remove 2xCR2025 batteries with flat head screwdriver.

Now it's time to install new batteries in keyless entry fob's body. Be sure to connect the battery the right way around in a circuit. Your remote key fob will not work if you put battery wrong way.

Before assembling fob’s case, verify that all functions works by testing buttons on keyless entry remote.

At this point squeeze fob’s back cover together. Line your body two halves 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.

Video of key fob disassembly

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

Still not working? Buy new one

FAQ

Key fob of Mercedes-Benz S500 require 2xCR2025 batteries. Most CR2025 batteries are under $4-6 depending on the brand, type and size packaging you buy. Take your old battery to the store, to be sure.

Often, after 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.

Changing your key fob battery is easy to do in 1998 Mercedes-Benz S500. Most of car manufacturers think about customers and make a special hole for remote key fob disassembly.

Dealer service price for replace the battery in fob is from $30 to as high as $500 depending on the car.

You should change batteries inside key fob of Mercedes-Benz S500 at least once in 4 years. The term of battery differ on frequency of use, quality and operating conditions. Lithium cells normally will last longer.

If your Mercedes-Benz need multiple clicks to unlock or lock doors, signal strength reduced, key fob buttons not working or fob's battery more than 4 years old, it's probably battery replace inside keyless entry remote required. Current battery is discharged with a high probability, but if it's not help to fix issues, remote key fob replace or repair needed.
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Fob Compatibility:

  1. FCC ID: KR 55
  2. Models: 1995-2005 Mercedes-Benz S500