I want to know how long I can expect the key fob's battery to last before needing a replacement.
ReplyAccording to the manufacturer's manual, the Audi A4 key fob battery should last up to 2 years before needing to be replaced.
In my experience, the key fob battery on my 2021 Audi A4 lasted just over 1.5 years before I needed to replace it. Make sure to always have a spare battery on hand just in case!
I've had my 2021 Audi A4 for 3 years now and have never had to replace the key fob battery. It's always a good idea to test the battery once a year to check its health.
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