How to change a brake LI

Susan, I've been around cars for a lifetime now, and have no idea what you're looking for. If you're abbreviating something with the letters "LI" you'll need to spell it out because whatever you're trying to refer to, that's not a common way to do it. Otherwise, if your sentence got cut off, then we don't know if you're looking for a brake light, or a brake line or what.

Please edit your post to elaborate on what information you're looking for, and it would help if you add the exact year and model/engine size/variant information so we can correctly identify any parts that might be needed.

Good lord, my request for more information is an order of magnitude longer than your question; please reverse that situation so we can help you.