How to Replace the Battery in a 2003 Audi S4 Key Fob

How to Replace the Battery in a 2003 Audi S4 Key Fob

If your S4 keyless entry remote is not working well, the cell battery surely must to be replaced. In this article, we walks you through how to disassembly your car key fob and replace your Audi key battery.

What type battery remote key fob require

Don't forget before disassembly keyless entry remote be sure that you have all required tools and materials: 1xCR2032 battery and flat head screwdriver.
  • flat head screwdriver
  • 1xCR2032 battery

Simple steps to replace the battery in your S4's key fob

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

Delicately try to disassemble your remote key fob with pry tools. Change CR2032 battery with flat head screwdriver.

Replace old battery with fresh one CR2032. Be sure to connect the battery the right way around in a circuit. Your key will not work if you place battery wrong way.

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

At this point squeeze keyless entry fob's back cover together. Line your shell two halves together and assemble it in place by hands from top to bottom. Inspect your key body for gaps. If it is not tightly closed try to repeat last step.

How to replace the battery video instruction

2004 Audi A4 key fob battery replacement

Still not working? Buy new one

Frequently Asked Questions

Keyless entry remote of Audi S4 require 1xCR2032 batteries. Price for CR2032 batteries are under $6 build upon the brand, size packaging and type you buy. Take your old battery to the store, to find a proper replacement.

Remote key fob in most of cases reprogramming not needed after battery change. If your remote key fob 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 2003 Audi S4. Most of car manufacturers think of the clients and make a special hole for keyless entry remote disassembly.

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

Key fob batteries in Audi S4 should be replaced every three years, but this will vary based on their amount of use and build quality. If your key fob reduced signal strength, you should change batteries before it stop working and make problems for you.

If your Audi signal strength reduced, has low key battery indicator on dashboard, fob's battery more than 4 years old or key fob buttons not working, in most cases battery replace in keyless entry remote needed. Currently installed battery is discharged with a high probability, but if it's not fix, key fob replace or repair needed.
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Fob Compatibility:

  1. FCC ID: MYT8Z0837231
  2. Models: 2002-2006 Audi S4