Where are the positive and negative terminals of the Audi A4 battery located?

[McJuliette]

Audi A4 battery positive and negative terminals: First, open the trunk, lift the floor panel, and remove the plastic cover to see the symbols marked with positive and negative signs (+ and --), which are the battery terminals of the Audi A4. It is essential to distinguish between the positive and negative wires to avoid incorrect connections that may cause damage. Here are several methods to distinguish the positive and negative terminals: 1. You can differentiate them based on the thickness of the battery terminal wires—most thick wires are positive, and thin wires are negative. 2. You can use two test leads connected to the battery terminals to distinguish the positive and negative terminals by voltage. 3. The color of the terminal can also indicate polarity—brown terminals are positive, while slate gray terminals are negative. 4. Generally, the terminal facing the manufacturer's logo on the battery case is positive, and the opposite side is negative.