2009 Audi S3 Key Fob Battery Replacement Guide

2009 Audi S3 Key Fob Battery Replacement Guide

If your car keyless entry remote is not unlock doors properly, the cell battery more likely must to be replaced. It's not complicated to change the battery in your keyless entry remote by yourself. Everything you need is described in this article.

What size battery does 2009 Audi S3 remote key fob take

Before beginning open keyless entry remote check all that you need: flat head screwdriver and 1xCR2032 battery.
  • flat head screwdriver
  • 1xCR2032 battery

Simple steps to change the battery in your S3's remote key fob

Inside of your keyless entry remote installed small button cell battery. Open key first, and then try to pry apart the remote key fob.

Gently try to open your keyless entry remote with pry tools. Remove CR2032 battery with flat head screwdriver.

Now it's time to install new battery inside keyless entry fob's case. Be sure to connect the battery the right way around in a circuit. Your key will not work if you connect battery wrong way.

Before assembling fob’s case, make sure that everything is functioning by pressing buttons on circuit board.

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

How to replace the battery video guide


Still not working? Buy new one


Keyless entry remote of Audi S3 require 1xCR2032 batteries. Most CR2032 batteries are under $5 depending on the brand, type and size packaging 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 change. If your key not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Replacing your key fob battery is simple to do in 2009 Audi S3. Most of car manufacturers think about clients and make a special hole for key fob disassembly.

Dealer service price for change the battery in key is from $30 to as high as $500 depending on the brand.

You should replace batteries inside keyless entry remote of modern cars at least once in 3-4 years. The lifetime of battery differ on frequency of use, operating conditions and quality.

These symptoms will alert you that it's possible time to change battery in your 2009 Audi S3: you didn't change battery more than 4 years, low key battery indicator on dashboard, key fob buttons not working and signal strength reduced.
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Fob Compatibility:

  1. FCC ID: IYZ3314
  2. Models: 2008-2010 Audi S3