Why does my Audi A5's key fob not work consistently?

I've noticed that sometimes my key fob won't unlock or lock my Audi A5. Is there a specific reason for this and is there any solution?

The most common reason for inconsistent key fob performance is a weak battery. Try replacing the battery and see if that improves its functionality. If not, it could be a fault in the key fob itself.

Have you tried using the spare key fob to see if it has the same issue? If not, it could be a problem with the first key fob and you may need to get it replaced.

In certain cases, key fobs can lose their programming and need to be reprogrammed by a professional. This could be the cause of your key fob malfunctioning.