How to Replace the Battery in a 2011 Mercedes-Benz R350 Key Fob

How to Replace the Battery in a 2011 Mercedes-Benz R350 Key Fob

Key fob allow easy access to your R350. If the remote key fob battery is dead or weak you’ll not to be able unlock trunk or doors remotely. In this post, we walks you through how to disassembly your car remote key fob and change your Mercedes-Benz key battery.

What is the battery keyless entry remote require

Don't forget before disassembly remote key fob make sure that you have all recommended tools and materials: two CR2025 batteries and flat head screwdriver.
  • 2xCR2025 batteries
  • flat head screwdriver

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

A small coin battery installed inside the your keyless entry remote. Remove any internal key first, and then try to pry apart the remote key fob.

Delicately try to pry apart your keyless entry remote with pry tools. Remove CR2025 batteries with flat head screwdriver.

Get new batteries and install it inside fob’s body. Battery must be installed with the same polarity as was a previous. Your remote key fob will not work if you mistakenly put battery wrong way.

Before assembling fob’s case, make sure that all is functioning by testing buttons on remote key fob.

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 keyless entry remote case firmly closed, we done. If not, repeat the last step.

Key Fob Battery Replacement 2011 Mercedes-Benz R350 Video

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

Still not working? Buy new one

Frequently Asked Questions

Keyless entry remote of Mercedes-Benz R350 use 2xCR2025 batteries. Price for CR2025 batteries are under $5 depending on the brand, size packaging and type you buy. You can take old battery to the store, to be sure.

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. If it is not help, read user's manual or contact local dealer.

Yes, you can replace battery in your 2011 Mercedes-Benz R350 key fob yourself. Most difficult part is to open fob’s case. It's pretty simple with our guide.

Auto repair shop's price for change the battery in key fob is from 50 to 600 dollars depending on the make.

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

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

Fob Compatibility:

  1. FCC ID: IYZ3317
  2. Models: 2007-2012 Mercedes-Benz R350