How to Replace the Battery in a 2012 Audi S4 Key Fob

How to Replace the Battery in a 2012 Audi S4 Key Fob

Keyless entry remote allow access to your Audi. When the remote key fob battery is dead you lose your keyless entry fob's ability to use remote opportunities. Yes, it is possible to replace the battery in your key fob DIY. All you need is described below.

What type battery remote key fob require

Before beginning open remote key fob make sure that you have all recommended tools and materials: CR2032 battery and flat head screwdriver.
  • 1xCR2032 battery
  • flat head screwdriver

Step by step guide

Inside of your remote key fob installed tiny coin battery. Open key before you try to pry apart the keyless entry remote.

Gently try to open your key fob with hands or flat head screwdriver. Remove 1xCR2032 battery with flat head screwdriver.

Now it's time to install new battery inside fob’s body. Every battery has a negative and positive side and if you put the wrong connector down, the charge cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.

Before assembling keyless entry fob's case, make sure that all is functioning by pressing buttons on circuit board.

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 remote key fob body tightly closed, we done. If not, repeat the last step.

Key Fob Battery Replacement 2012 Audi S4 Video

How to change SmartKey Key fob Battery on Audi A5 A3 A4 S4 S5 S6 Q5 Keyless entry IYZFBSB802

Still not working? Buy new one

FAQ

Key fob of Audi S4 use 1xCR2032 batteries. Most CR2032 batteries are under $5 depending on the size packaging, brand and type you buy. You can take old battery to the store, with you to find a proper replacement.

Often, after key battery replace, reprogramming not required. Don't be scare of this procedure, because often it's described in user's manual.

Changing your keyless entry remote battery is easy to do in 2012 Audi S4. Most of car manufacturers think about clients and make a special hole for key fob disassembly.

Dealer service price for change the battery in fob is from 50 to 600 dollars depending on the car.

Remote key fob batteries in modern cars should be changed once in three or four years, also this will differ based on frequency of use and battery quality. If your keyless entry remote shortened signal strength, you should replace batteries before it stop open doors and make problems for you.

If your S4 has low key battery indicator on dashboard, key fob buttons not working, signal strength reduced or need multiple clicks to unlock or lock doors, it's probably battery change in key fob required. Current battery is discharged with a high probability, but if it's not help, remote key fob change or repair needed.
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Fob Compatibility:

  1. FCC ID: IYZFBSB802
  2. Models: 2009-2015 Audi S4