How to Open Your 2008 Audi A5 Quattro Key Fob and Change Battery

How to Open Your 2008 Audi A5 Quattro Key Fob and Change Battery

Keyless entry remote grant access to your car. When the key battery is dead or weak you lose your keyless entry fob's ability to control distance functions. It's not complicated to replace the battery in your remote key fob DIY. All you need is explained in this article.

What type battery does 2008 Audi A5 Quattro remote key fob required

Before you start to open key fob check all that you need: CR2032 battery and flat head screwdriver.
  • flat head screwdriver
  • 1xCR2032 battery

Step by step guide

A button battery installed in the your keyless entry remote. Open key first, and then try to pry apart the keyless entry remote.

Carefully try to pry apart your fob with hands or flat head screwdriver. Change 1 CR2032 battery with flat head screwdriver.

Get new battery and install it inside keyless entry fob's case. Battery must be installed with the same position as was an old. Your key will not work if you mistakenly put battery wrong way.

After the new battery installed, check remote key fob by pressing buttons. If all functions works, assemble your fob’s body in reverse order.

The last thing to do is put your cover back on fob. Carefully try to put the two halves in place by hands from top to bottom. If your remote key fob shell firmly closed, we done. If not, repeat the last step.

Video of keyless entry remote opening

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


Key fob of Audi A5 Quattro require 1xCR2032 batteries. Price for CR2032 batteries are under $6 build upon the type, size packaging and brand you buy. You can take old battery to the store, with you to find a proper replacement.

Keyless entry remote in most of cases reprogramming not needed after battery change. If your key fob not working, recheck new battery voltage. Otherwise, read user's manual or contact local dealer.

Yes, you can change battery in your 2008 Audi A5 Quattro key yourself. Most difficult part is to open keyless entry fob's case. It's pretty easy with our guide.

Car service pricing for change the battery in keyless entry remote is from $30 to as high as $500 depending on the brand.

Remote key fob batteries in Audi A5 Quattro should be changed once in 4 years, but this will vary based on frequency of use and battery quality. If your key fob decreased signal strength, you should replace batteries before it stop close doors and make trouble for you.

These signs will alert you that it's perhaps time to change battery in your 2008 Audi A5 Quattro: multiple clicks to unlock or lock doors required, key fob buttons not working, low key battery indicator on dashboard and signal strength reduced.
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Fob Compatibility:

  1. FCC ID: IYZ3314
  2. Models: 2008-2010 Audi A5 Quattro