How to Replace the Battery in a 2000 Audi A8 Key Fob

How to Replace the Battery in a 2000 Audi A8 Key Fob

Keyless entry remote grant easy access to your A8. Once the key fob battery is dead you not to be able lock car remotely. In this post, we described how to open your keyless entry remote and change your Audi key battery.

What type battery remote key fob require

Don't forget before open key fob check all that you need: flat head screwdriver and 2 CR2025 batteries.
  • 2xCR2025 batteries
  • flat head screwdriver

Step by step instruction

Inside of your key fob installed small button battery. Open the key if it is in the keyless entry remote. Your keyless entry remote key can be unmounted with slide.

Accurately try to disassemble your fob with pry tools. Replace CR2025 batteries with flat head screwdriver.

Get new batteries and install it inside keyless entry fob's case. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check position on battery, by "+" mark.

When the new batteries installed, verify 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 case two halves together and put it together by hands from top to bottom. Check your keyless entry remote body for gaps. If it is not firmly closed try to repeat last step.

Key Fob Battery Replacement 2000 Audi A8 Video

How To Replace Audi A8 Key Fob Battery 1997 1998 1999 2000 2001

Still not working? Buy new one


Remote key fob of Audi A8 require 2xCR2025 batteries. Price for CR2025 batteries are under $4-6 depending on the brand, type and size packaging you buy. Take your old battery to the store, to be sure.

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

Yes, you can change battery in your 2000 Audi A8 key yourself. Most difficult part is to open fob’s case. It's pretty simple with our step by step guide.

The cost to change the battery in fob is $50-600 depending on the brand and the service pricing.

Keyless entry remote batteries in Audi A8 should be changed once in three years, but this will vary based on usage and build quality. If your remote key fob shortened signal strength, you should replace batteries before it stop open doors and make problems for you.

If your A8 has low key battery indicator on dashboard, need multiple clicks to unlock or lock doors, signal strength reduced or key fob buttons not working, in most cases battery change inside remote key fob required. Installed battery is dead with a high probability, but if it's not help to fix issues, keyless entry remote change or repair required.
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Fob Compatibility:

  1. FCC ID: MZ2 410 819 4
  2. Models: 1994-2001 Audi A8