Why does the BMW still show a fault after replacing the battery?

1 Answers
DiBrooke
07/29/25 6:12pm
BMW still showing a fault after replacing the battery is due to electrical leakage in the car causing continuous battery discharge. Here are the specific details: 1. Cause: Battery depletion is not accidental; it is often caused by the owner's usage habits. Even when the car is turned off and the engine is not running, electrical equipment or external power devices are still used for extended periods. Many people think this saves fuel, but in reality, it harms the battery's lifespan. 2. Battery Maintenance: The battery is most vulnerable to low temperatures. In cold environments, the battery's capacity is much lower than at normal temperatures. Therefore, regular inspection and maintenance are essential. In daily life, avoid parking the car in open parking lots for extended periods. If long-term parking is necessary, remove the battery to prevent freezing damage.
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