How to Open Your 2008 Audi S5 Key Fob and Change Battery

How to Open Your 2008 Audi S5 Key Fob and Change Battery

If your Audi keyless entry remote is no longer working well, the cell battery probably needs to be replaced. Below, we demonstrate how to disassembly Audi remote key fob and replace a discharged battery yourself. If you decide to do it at home near S5, follow our instruction, but don't forget to check all you need.

What type battery key fob require

Before starting disassembly remote key fob be sure that you have all required tools and materials: flat head screwdriver and CR2032 battery.
  • flat head screwdriver
  • 1xCR2032 battery

Simple steps to replace the battery in your S5's keyless entry remote

Inside of your keyless entry remote installed small coin battery. Open key first, and then try to pry apart the key fob.

Accurately try to pry apart your remote key fob with hands or flat head screwdriver. Remove 1xCR2032 battery with flat head screwdriver.

Now it's time to install new battery in keyless entry fob's case. Be sure to connect the battery the right way around in a circuit. Your remote key fob will not work if you place battery wrong way.

After the new battery installed, check key fob functionality 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 remote key fob shell firmly closed, we done. If not, repeat the last step.

How to change the battery video instruction

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

Remote key fob of Audi S5 use 1xCR2032 batteries. Most CR2032 batteries are under $5 build upon the size packaging, type and brand you buy. You can take old battery to the store, to find a proper replacement.

Usually, after key fob battery change, you do not need to reprogram. Don't be scare of this procedure, because often it's described in user's manual.

Yes, you can change battery in your 2008 Audi S5 key yourself. Most difficult part is to open fob’s case. It's pretty easy with our guide.

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

You should replace batteries inside key fob of Audi S5 at least every four years. The lifetime of battery vary on their amount of use, operating conditions and quality.

These symptoms will warn you that it's probably time to replace battery in your Audi S5: you didn't change battery more than 4 years, low key battery indicator on dashboard, key fob buttons not working and signal strength reduced.
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Fob Compatibility:

  2. Models: 2008-2014 Audi S5