The 2015 BMW 328i uses a 12-volt AGM (Absorbent Glass Mat) battery, typically around 90 Ah with roughly 700–800 cold-cranking amps (CCA). This setup supports the car’s Start-Stop system and onboard electronics, so an AGM replacement is recommended.
In practice, you’ll replace it with an AGM 12V battery that meets or exceeds OEM specifications. The battery is usually located in the trunk beneath the floor panel in most markets, and after installation you may need to register the new battery with the vehicle’s battery-management system to ensure proper charging behavior and start-stop performance.
Battery type and capacity
Here are the key specs and considerations to guide your replacement choice for the 2015 328i.
- Battery type: 12-volt AGM (Absorbent Glass Mat), required for Start-Stop operation to cope with frequent cycling and electronics.
- Capacity: Typically around 90 Ah; verify the label on your current battery or the vehicle’s manual for the exact specification for your VIN.
- Cold-cranking amps (CCA): Generally in the 700–800 A range, with a common specification near 760 CCA; choose a battery that meets or exceeds this.
- Location and fit: Most 2015 328i batteries are located in the trunk under the floor panel; ensure the replacement fits the physical dimensions and terminal orientation.
- Compatibility: AGM battery is essential for vehicles with Start-Stop; using a non-AGM battery can trigger charging/electronics issues or warning lights.
- Brands and options: OEM-specified or reputable aftermarket AGM batteries from brands like Varta, Bosch, Exide, or Yuasa are commonly used; confirm compatibility with BMW’s battery sensor and iDrive system.
Conclusion: When replacing, opt for an AGM battery that matches or exceeds the OEM rating, and have the new battery registered with the car’s system to maintain proper charging behavior and Start-Stop performance.
Notes on replacement and maintenance
After installation, it’s advisable to have the battery registered with the vehicle’s battery management system. This helps the car learn the new battery’s characteristics and maintain optimal charging. If you’re unsure about the process, a certified BMW technician can perform the replacement and registration, ensuring electronics and start-stop features function correctly.
Summary
For a 2015 BMW 328i, use a 12V AGM battery, typically around 90 Ah with about 760 CCA, located in the trunk. Choose an AGM that matches OEM specifications and complete battery registration after installation to preserve start-stop performance and electronic reliability.
What battery does a BMW 3 series use?
Diesel
| Engine | Battery | |
|---|---|---|
| 3 Series (E46) | 320d Saloon | 096 |
| 3 Series (E90) | 320d Saloon | 019 |
| 3 Series (E90) | 320d Saloon | 110 |
| 3 Series (E92) | 320d xDrive Coupe | 019 |
What type of battery does a BMW 328i take?
DieHard Platinum AGM – Battery : H7 Group Size, 850 CCA, 1000 CA, 140 Minute Reserve Capacity (Part No. H7-AGM)
What size battery goes in a 2015 BMW car?
DieHard Platinum AGM – Battery : H8 Group Size, 900 CCA, 1000 CA, 160 Minute Reserve Capacity (Part No. H8-AGM)
Where is the battery in a BMW 2015 328i?
Open turn this knob here my uh fabric is a little bit off. So I just leave mine. Alone pull this to the side. Now we have access to our battery. Okay um I'm going actually go get the new battery.