How to Replace the Battery in a 2015 Audi A4 Key Fob

How to Replace the Battery in a 2015 Audi A4 Key Fob

If your auto remote key fob is no longer working perfectly, the cell battery more likely must to be replaced. In this article, you’ll benefit from knowing how to open Audi key fob and change a dead battery DIY. If you choose to do it at home near A4, use this instruction, but don't forget to check all you need.

What type battery does 2015 Audi A4 key fob take

Before going to disassembly key fob check all that you need: 1xCR2032 battery and flat head screwdriver.
  • 1xCR2032 battery
  • flat head screwdriver

Simple steps to change the battery in your A4's key fob

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

Accurately try to disassemble your remote key fob with flat head screwdriver. Replace 1 CR2032 battery with flat head screwdriver.

Replace old battery with fresh one CR2032. 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.

After the new battery installed, check key fob by pressing buttons. If everything is functioning, assemble your fob’s case in reverse order.

At this point squeeze fob’s back cover together. Line your case two halves together and assemble it together by hands from top to bottom. If your fob shell firmly closed, we done. If not, repeat the last step.

Video of key opening

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

Frequently Asked Questions

Key fob of Audi A4 use 1xCR2032 batteries. Price for CR2032 batteries are under $4-6 build upon the size packaging, brand and type you buy. You can take old battery to the store, to find a proper replacement.

Often, after remote key fob 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 key fob battery is simple to do in 2015 Audi A4. Most of car manufacturers think of the customers and make a special hole for key fob open.

Car service pricing for change the battery in remote key fob is $50-600 depending on the make.

You should replace batteries inside remote key fob of Audi A4 at least every three or four years. lifespan of battery vary on frequency of use, quality and operating conditions.

These signs will alert you that it's probably time to replace battery in your Audi A4: low key battery indicator on dashboard, key fob buttons not working, multiple clicks to unlock or lock doors required and you didn't change battery more than 4 years.
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Fob Compatibility:

  2. Models: 2008-2017 Audi A4