How to Open Your 2015 Audi A5 Key Fob and Change Battery

How to Open Your 2015 Audi A5 Key Fob and Change Battery

If your auto keyless entry remote is not open doors well, the cell battery most likely must to be changed. Yes, it is possible to change the battery in your keyless entry remote with our step by step instruction. Everything you need is explained below.

What size battery does 2015 Audi A5 key fob take

Before starting disassembly keyless entry remote check all that you need: one CR2032 battery and flat head screwdriver.
  • flat head screwdriver
  • 1xCR2032 battery

Step by step instruction

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

Accurately try to disassemble your fob with flat head screwdriver. Change one CR2032 battery with flat head screwdriver.

Get new battery and install it in keyless entry fob's shell. 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 polarity on battery, by "+" mark.

Before assembling fob’s case, make sure that all functions works by testing buttons on circuit board.

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

Video of keyless entry remote disassembly

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

Key fob of Audi A5 require 1xCR2032 batteries. Most CR2032 batteries are under $6 depending on the brand, size packaging and type you buy. You can take old battery to the store, to find a proper replacement.

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

Yes, you can replace battery in your 2015 Audi A5 remote key fob yourself. Most hard part is to open fob’s case. It's pretty easy with our guide.

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

You should change batteries inside remote key fob of Audi A5 at least once in four years. lifespan of battery vary on usage time, quality and operating conditions.

If your car signal strength reduced, key fob buttons not working, fob's battery more than 4 years old or has low key battery indicator on dashboard, in most cases battery change in remote key fob required. Currently installed battery is dead with a high probability, but if it's not help to fix issues, key fob replace or repair required.
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Other Audi Models:

Fob Compatibility:

  1. FCC ID: IYZFBSB802
  2. Models: 2008-2015 Audi A5