2018 BMW 340i Car Batteries

The Right Battery Size for a 2018 BMW 340i

Not sure what battery to get for your BMW 340i? Use the following chart to find information on BMW 340i battery size and cold cranking amps.

Battery Engine Warranty Cold Cranking Amps
MTX-48/H6 L6/3.0L Replacement 36 months Performance 36 months 760
MTZ-48/H6 L6/3.0L Replacement 48 months Performance 48 months 730
BATTERIES

L6/3.0L

- Battery: MTX-48/H6

- Warranty: Replacement 36 months, Performance 36 months

- Cold Cranking Amps: 760

L6/3.0L

- Battery: MTZ-48/H6

- Warranty: Replacement 48 months, Performance 48 months

- Cold Cranking Amps: 730

Buy the Right Battery for Your BMW 340i

You can pretty much drive your BMW 340i until you don't want to anymore. But your 340i's battery? Don't count on it to last forever. On average, auto batteries last anywhere from three to five years. Check your battery regularly and replace it as needed so it doesn’t leave you and your BMW 340i stranded. Watch for signs that your current battery is getting too old or too weak. A lagging starter, a blinking battery or check engine light, swollen battery case, corroded battery posts, or dim headlights may all indicate that your battery is on its last leg.

You can also get a Free Battery Test at your local Firestone Complete Auto Care. Our equipment can see how much charge is left in your battery. Visit us for a complimentary battery check and, if needed, get your BMW 340i a replacement battery. Automotive batteries are just one of our many areas of expertise. Our technicians are familiar with BMW-specific recommendations for 340i battery cold cranking amps and reserve capacity. Get help identifying the type and size of battery that fits your car perfectly, and schedule a weekday or weekend battery replacement service for your car.

Are Interstate Batteries Good for 340is?

We only want what’s best for your BMW 340i, which is why we carry just that. We replace over 700,000 batteries each year with America's #1 replacement battery from Interstate Batteries. Interstate has been a leader in car battery reliability, charge capacity, and innovation for many years. Pop the hood of any BMW 340i and you may find a trusty Interstate Battery. Their tried and true products are commonly used in forklifts freightliners, golf carts, and boats! To run optimally, your 2018 BMW 340i requires a dependable battery. And Interstate Batteries are Outrageously Dependable®.

Making Your 340i’s New Battery Last

Have you recently had a fresh battery installed in your BMW 340i? Good thinking! Now, help it last longer and stay charged by caring for it from the get-go. flipping the dome lights and headlights off when exiting the car, cutting back on unnecessary short trips, keeping your battery posts clean, and not playing the radio or using other electronics when the engine is turned off.

Answers to Your 340i Car Battery Questions

Get answers to common car battery questions, from Firestone Complete Auto Care. If you have battery questions that are BMW 340i-specific, visit your nearest store. Our expert techs have the answers you need.

  • Why doesn’t my 340i battery stay charged? A battery is in its final hour when it will no longer hold a charge. It may be getting old. Or, you may have a habit of leaving your car doors open and the dome lights on during the night. Stop by for a complimentary battery check at your nearest Firestone Complete Auto Care to learn more about the state of your battery.
  • What do you do with my dead 340i battery? We recycle it, taking care of both your car and the Earth.
  • What’s the cost of BMW 340i batteries? BMW 340i batteries can be affordable, especially when there's an available battery coupon. And, all Interstate Batteries have a limited-time free replacement and performance warranty.

BMW 340i Batteries Near You

Don’t let a dead battery stop you. Shop replacement car batteries for your 2018 BMW 340i at Firestone Complete Auto Care.