How to Replace the Battery in a 2008 Mercedes-Benz S65 AMG Key Fob

How to Replace the Battery in a 2008 Mercedes-Benz S65 AMG Key Fob

If your Mercedes-Benz keyless entry remote is not working correct, the battery likely needs to be replaced. It's not complicated to change the battery in your key fob DIY. All you need is described below.

What type battery remote key fob use

Don't forget before open remote key fob be sure that you have all required tools and materials: 2 CR2025 batteries and flat head screwdriver.
  • 2xCR2025 batteries
  • flat head screwdriver

Step by step guide

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

Carefully try to open your key fob with hands or flat head screwdriver. Replace 2xCR2025 batteries with flat head screwdriver.

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

After the new batteries installed, check keyless entry remote by pressing buttons. If everything is functioning, assemble your keyless entry fob's shell in reverse order.

The last thing to do is put your cover back on fob. Delicately try to put the two halves in place by hands from top to bottom. If your keyless entry remote shell firmly closed, we done. If not, repeat the last step.

Video of remote key fob opening

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 use 2xCR2025 batteries. Most CR2025 batteries are under $6 build upon the type, size packaging and brand you buy. You can take old battery to the store, with you to find a proper replacement.

Remote key fob in most of cases do not need to be reprogrammed after battery replace. If your key not working, recheck new battery voltage. Otherwise, read user's manual or contact local dealer.

Replacing your keyless entry remote battery is easy to do in 2008 Mercedes-Benz S65 AMG. Most of car manufacturers think about customers and make a special hole for keyless entry remote open.

Car service pricing for replace the battery in fob is from 50 to 600 dollars depending on the brand.

Key fob batteries in modern cars should be changed once in 3-4 years, although this will differ based on their amount of use and battery quality. If your keyless entry remote shortened signal strength, you should change batteries before it stop working and make trouble for you.

If your auto 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 change in keyless entry remote required. Currently installed battery is dead or weak with a high probability, but if it's not help, keyless entry remote replace or repair needed.
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Other Mercedes-Benz Models:

Fob Compatibility:

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