How to Replace the Battery in a 2006 Mercedes-Benz C280 Key Fob

How to Replace the Battery in a 2006 Mercedes-Benz C280 Key Fob

Key fob grant access to your C280. Once the keyless entry remote battery is discharged you’ll lose your fob’s ability to control distance opening function. In this post, you will benefit from knowing how to open your car key fob and change a dead battery yourself. If you decide to do it at home near C280, use this guide, but don't forget to check tools and materials required before you start.

What kind of battery remote key fob use

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

Step by step guide

A coin cell battery installed in the your key fob. Move the key out of the way if it is in the keyless entry remote.

Delicately try to pry apart your fob with flat head screwdriver. Replace CR2025 batteries with flat head screwdriver.

Change old batteries with fresh one CR2025. Battery must be placed with the same polarity as was an old. Your keyless entry remote will not work if you mistakenly place battery wrong way.

Before assembling keyless entry fob's case, check that all functions works by testing buttons on circuit board.

At this point squeeze keyless entry fob's back cover together. Line your body pieces together and put it together by hands from top to bottom. If your fob case tightly closed, we done. If not, repeat the last step.

How to replace the battery video instruction

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

Still not working? Buy new one


Remote key fob of Mercedes-Benz C280 require 2xCR2025 batteries. Most CR2025 batteries are under $4-6 build upon the size packaging, brand and type you buy. Take your old battery to the store, to find a proper replacement.

Key fob in most of cases do not need to be reprogrammed after battery replace. If your keyless entry remote not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Replacing your keyless entry remote battery is simple to do in 2006 Mercedes-Benz C280. Most of car manufacturers think of the customers and make a special hole for remote key fob disassembly.

The price to replace the battery in remote key fob can run anywhere from $30 to as high as $500 depending on the brand and the service station.

You should replace batteries inside keyless entry remote of Mercedes-Benz C280 at least every four years. The term of battery vary on usage time, quality and operating conditions.

If your auto signal strength reduced, fob's battery more than 4 years old, has low key battery indicator on dashboard or key fob buttons not working, in most cases battery replace inside remote key fob required. Current battery is weak or dead with a high probability, but if it's not fix problem, fob change or repair needed.
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Fob Compatibility:

  1. FCC ID: KR55WK49031
  2. Models: 2006-2007 Mercedes-Benz C280