How to Open Your 2003 Audi A4 Quattro Key Fob and Change Battery

How to Open Your 2003 Audi A4 Quattro Key Fob and Change Battery

Keyless entry remote allow easy access to your Audi. Once the keyless entry remote battery is dead you not to be able open car remotely. In this article, you will benefit from knowing how to disassembly Audi key fob and replace a discharged battery yourself. If you decide to do it at home near A4 Quattro, use this guide, but don't forget to check everything you need.

What kind of battery keyless entry remote use

Don't forget before disassembly remote key fob be sure that you have all required tools and materials: two CR1620 batteries and flat head screwdriver.
  • flat head screwdriver
  • 2xCR1620 batteries

Step by step guide

A button battery installed in the your keyless entry remote. Open the key if it is in the key fob. Your key fob key can be extracted with slide.

Gently try to disassemble your keyless entry remote with pry tools. Replace CR1620 batteries with flat head screwdriver.

Change old batteries with new one CR1620. Be sure to connect the battery the right way around in a circuit. Your key fob will not work if you place battery wrong way.

Before assembling keyless entry fob's case, verify that all functions works by pressing buttons on remote key fob.

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

How to replace the battery video instruction

How to replace your Audi A4 key battery and resync/program it to your car

Still not working? Buy new one

FAQ

Remote key fob of Audi A4 Quattro require 2xCR1620 batteries. Price for CR1620 batteries are under $5 build upon the size packaging, brand and type you buy. Take your old battery to the store, to be sure.

Remote key fob in most of cases reprogramming not required after battery replace. If your key fob not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Yes, you can change battery in your 2003 Audi A4 Quattro keyless entry remote yourself. Most hard part is to disassembly fob’s case. It's pretty simple with our guide.

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

Keyless entry remote batteries in modern cars should be replaced once in three or four years, although this will vary based on their amount of use and battery quality. If your key fob shortened signal strength, you should replace batteries before it stop open doors and make trouble for you.

These symptoms will warning you that it's probably time to change battery in your Audi A4 Quattro: multiple clicks to unlock or lock doors required, low key battery indicator on dashboard, signal strength reduced and you didn't change battery more than 4 years.
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Fob Compatibility:

  1. FCC ID: MYT8Z0 837 231 | MZ2 410 819 6
  2. Models: 1997-2005 Audi A4 Quattro