2009 Mercedes-Benz S65 AMG Key Fob Battery Replacement Guide

2009 Mercedes-Benz S65 AMG Key Fob Battery Replacement Guide

If your S65 AMG key fob isn't working correct, the cell battery most likely needs to be changed. Yes, it is possible to replace the battery in your keyless entry remote with our guide. All you need is outlined below.

What type battery does 2009 Mercedes-Benz S65 AMG keyless entry remote required

Changing batteries in keyless entry remote require flat head screwdriver and two CR2025 batteries. Prepare these materials and tools before opening and make sure to match the type of your fob’s batteries.
  • 2xCR2025 batteries
  • flat head screwdriver

Simple steps to replace the battery in your car's keyless entry remote

Inside of your keyless entry remote installed small coin cell battery. Remove any internal key first, and then try to pry apart the keyless entry remote.

Accurately try to pry apart your key with flat head screwdriver. Change two CR2025 batteries with flat head screwdriver.

Replace old batteries with fresh one CR2025. Be sure to connect the battery the right way around in a circuit. Your key fob will not work if you put battery wrong way.

When the new batteries installed, verify remote key fob by pressing buttons. If everything is functioning, assemble your fob’s shell in reverse order.

At this point squeeze fob’s back cover together. Line your shell two halves together and assemble it in place by hands from top to bottom. If your keyless entry remote body firmly closed, we done. If not, repeat the last step.

Video of remote key fob disassembly

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

Still not working? Buy new one

FAQ

Key fob of Mercedes-Benz S65 AMG require 2xCR2025 batteries. Most CR2025 batteries are under $6 depending on the brand, size packaging and type you buy. Take your old battery to the store, to find a proper replacement.

Key fob in most of cases reprogramming not required after battery replace. If your keyless entry remote not working, recheck new battery voltage. Otherwise, read user's manual or contact local dealer.

Changing your remote key fob battery is easy to do in 2009 Mercedes-Benz S65 AMG. Most of car manufacturers think of the customers and make a special hole for remote key fob open.

The price to change the battery in keyless entry remote can run anywhere from $30 to as high as $500 depending on the car and the service station.

Key fob batteries in Mercedes-Benz S65 AMG should be changed every 3-4 years, but this will differ based on usage and quality. If your key fob reduced signal strength, you should change batteries before it stop working and make problems for you.

If your car need multiple clicks to unlock or lock doors, fob's battery more than 4 years old, has low key battery indicator on dashboard or key fob buttons not working, it's probably battery change in keyless entry remote required. Installed battery is dead or weak with a high probability, but if it's not fix problem, fob replace or repair required.
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Other Mercedes-Benz Models:

Fob Compatibility:

  1. FCC ID: IYZ3317
  2. Models: 2007-2012 Mercedes-Benz S65 AMG