How do I change the battery on my Audi A6?

I need to replace the battery on my Audi A6, but I'm not sure how to do it. Can someone give me some guidance on how to do it safely and efficiently?

To change the battery on your Audi A6, first make sure the engine is turned off and the keys are removed from the ignition. Locate the battery, typically located in the trunk or under the hood. Disconnect the negative terminal first, followed by the positive terminal. Remove the old battery and replace it with a new one, making sure the positive and negative terminals are correctly connected.