Where are the positive and negative terminals of the BMW 1 Series battery?

[VonPatrick]

The positive terminal is located under the red plastic cover in the engine compartment. As for the negative terminal of the battery, there is a cover directly above the battery - red indicates positive and black indicates negative. The battery positive terminals must be connected together. The BMW 1 Series battery replacement tutorial is as follows: 1. First, locate the battery position in the trunk. 2. Remove the battery terminal protection and the fixing bracket nuts. 3. Disconnect the negative terminal connection before removing the positive connection. Since the negative terminal is connected to the car body, this prevents metal removal tools from accidentally touching the body and causing a short circuit. 4. After removing the surrounding fixing devices and positive/negative cables, the battery can be taken out for replacement. (Note: When the tilt angle exceeds 40°, electrolyte from the old battery can easily leak out.)