How to Replace the Battery in a Mazda6

Written by ehow cars editor
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The Mazda 6, a sporty mid-size car, is available as a sedan, four-door hatchback or station wagon. Changing out the battery is a relative easy job. It is conveniently located on the driver's side, near the engine wall. Most batteries should last about 5 years, but if you see a white, chalky substance on the battery, replace it with a new one.

Skill level:
Moderately Easy

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Things you need

  • New 12-volt battery
  • Battery terminal puller
  • Wire brushes
  • Socket wrench
  • Gloves
  • Old rags

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  1. 1

    Remove the bar that holds the battery in place.

  2. 2

    Take off the cable ends from the battery terminals with a battery terminal puller. Remove the negative cable first.

  3. 3

    Lift the battery out of the compartment. Safely dispose of used battery at an auto parts store, which will often take it as a trade-in, or bring it to a recycling center.

  4. 4

    Use the wire brush to clean the tray that holds the battery. Wipe it off with a damp cloth and let it dry before replacing new battery.

  5. 5

    Clean the insides of the connector cables with a pointed wire brush. Keep your gloves on at all times to avoid getting acid on your hands.

  6. 6

    Place the new battery on the shelf. Put the correct cable on each terminal and tighten securely with pliers or socket wrench.

Tips and warnings

  • Check your Mazda6's warranty if it's less than five years old to find out if battery replacement is still covered. If you must buy a replacement, then consider a Mazda-dealer installed battery, since they have a 36/60-Month Replacement Warranty.
  • Never smoke when replacing a battery.
  • Wear gloves when handling the battery and the battery cables.
  • Cover your eyes with goggles to prevent acid splash.

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