How to Open Your 2009 BMW 5-Series Key Fob & Change Battery

How to Open Your 2009 BMW 5-Series Key Fob & Change Battery

Key fob grant access to your BMW. Once the keyless entry remote battery is discharged you lose your fob’s ability to use remote functions. Yes, it is possible to change the battery in your keyless entry remote, and it’s easier than you think. All tools, that you need is explained in this article.

What type battery keyless entry remote use

Changing battery in key fob require 1 CR2450 battery, super glue, carpet knife and flat head screwdriver. Prepare these materials and tools before opening and make sure to match the size of your keyless entry fob's batteries.
  • 1xCR2450 battery
  • glue
  • razor knife
  • flat head screwdriver

Step by step instruction

A button cell battery installed inside the your key fob. Move the key out of the way if it is in the keyless entry remote. To disassemble this remote key fob you need scoring the edges with box cutter first.

Carefully try to open your key with hands or flat head screwdriver. Change 1 CR2450 battery with flat head screwdriver.

Replace old battery with fresh one CR2450. Be sure to connect the battery the right way around in a circuit. Your remote key fob will not work if you connect battery wrong way.

When the new battery installed, check remote key fob by pressing buttons. If all functions works, assemble your fob’s body in reverse order.

At this point squeeze keyless entry fob's back cover together. Line your shell two halves together and put it together by hands from top to bottom. Check your fob shell for gaps. If it is not firmly closed try to repeat last step. Glue the back of the key fob.

How to replace the battery video instruction

2007 - 2010 BMW 5 Series Key Battery Replacement E60 Non-Comfort Access Fob Remote

Still not working? Buy new one


Remote key fob of BMW 5-Series use 1xCR2450 batteries. Most CR2450 batteries are under $4 build upon the brand, type and size packaging you buy. Take your old battery to the store, to find a proper replacement.

Often, after keyless entry remote battery replace, you do not need to reprogram. Don't be scare of this procedure, because often it's described in user's manual.

Replacing your keyless entry remote battery is simple to do in 2009 BMW 5-Series. Most of car manufacturers think about clients and make a special hole for key fob disassembly.

Auto repair shop's cost for replace the battery in keyless entry remote is from 50 to 600 dollars depending on the make.

Key fob batteries in modern cars should be replaced every three years, but this will vary based on their amount of use and battery quality. If your key fob shortened signal strength, you should change batteries before it stop working and make problems for you.

These symptoms will warn you that it's perhaps time to change battery in your BMW 5-Series: low key battery indicator on dashboard, multiple clicks to unlock or lock doors required, key fob buttons not working and signal strength reduced.
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Fob Compatibility:

  1. FCC ID: YGOHUF5662
  2. Models: 2009-2014 BMW 5-Series