Car battery replacement for BMW 3 Series (E92, E93, E90, E91)

Car battery is a crucial component within automotive electrical system. In principle, it is a container for electricity, which is delivered for electrically operated devices inside the car. Thus, it's relevant to maintain the state of the battery in a perfectly operating condition. In reality, car battery is an expiring unit and will get ineffective over time. To be more precise, chemical processes within the battery will no longer be able to produce electricity. Battery's serve time has a limit of 3 - 5 years, until it starts loosing the ability to hold a useful charge. When this happens, new battery installation is required.

There is an option, that battery's energy will be wasted, because of deposit collected on connection points. In time, corrosion can affect the terminals of a battery, which is a cause of poor contacts. That means, the battery will become incapable of being re-charged by alternator. Sooner or later, it will get exhausted and become useless in providing electric energy. Removing debris from cable and battery connection points, might restore the battery to a level of full efficiency and turn it into suitable for further usage.

The battery might also lose its power, if the car was not used for some time. In such case, recharging the battery will possibly restore its efficiency. To get the battery recharged, you will need a battery charger.

Important! Some BMW 3 Series (E92, E93, E90, E91) vehicles might be equipped with an IBS (Intelligent Battery Sensor) system. That means, newly replaced battery must be registered by your Service center. Avoiding battery registration might cause power management system failure, as well as incorrect readings on the display of the on-board computer.

BMW 3 Series battery location: luggage compartment (trunk) under right trim.