How to Open Your 2005 Audi A6 Quattro Key Fob & Change Battery

How to Open Your 2005 Audi A6 Quattro Key Fob & Change Battery

If your Audi keyless entry remote is not unlock doors properly, the battery surely needs to be replaced. In this post, you will benefit from knowing how to disassembly Audi key fob and replace a dead or weak battery yourself. If you gonna solve to do it at home near A6 Quattro, use this guide, but first make sure you have all you need before you start.

What type battery does 2005 Audi A6 Quattro remote key fob take

Changing battery in keyless entry remote require flat head screwdriver and CR2032 battery. Prepare these materials and tools before opening and make sure to match the size of your keyless entry fob's batteries.
  • 1xCR2032 battery
  • flat head screwdriver

Step by step guide

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

Carefully try to disassemble your keyless entry remote with hands or flat head screwdriver. Replace 1xCR2032 battery with flat head screwdriver.

Change old battery with fresh one CR2032. 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.

After the new battery installed, verify keyless entry remote functionality by pressing buttons. If everything is functioning, assemble your fob’s case in reverse order.

At this point squeeze keyless entry fob's back cover together. Line your case pieces together and put it together by hands from top to bottom. If your remote key fob body tightly closed, we done. If not, repeat the last step.

How to change the battery video guide

How to replace the battery in your Audi A6 key fob.

Still not working? Buy new one


Key fob of Audi A6 Quattro require 1xCR2032 batteries. Most CR2032 batteries are under $4-6 depending on the type, size packaging and brand you buy. Take your old battery to the store, to be sure.

Usually, after keyless entry remote battery replace, you do not need to reprogram. Key fob reprogramming procedure often described in user's manual of your vehicle.

Changing your remote key fob battery is easy to do in 2005 Audi A6 Quattro. Most of car manufacturers think of the customers and make a special hole for keyless entry remote open.

The cost to change the battery in fob is in range from $30 to as high as $500 depending on the make and the service pricing.

You should replace batteries inside keyless entry remote of modern cars at least every three or four years. The lifetime of battery vary on frequency of use, operating conditions and quality. Lithium cells usually will last longer.

These symptoms will warn you that it's possible time to replace battery in your Audi A6 Quattro: signal strength reduced, key fob buttons not working, low key battery indicator on dashboard and you didn't change battery more than 4 years.
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Fob Compatibility:

  1. FCC ID: IYZ3314
  2. Models: 2005-2011 Audi A6 Quattro