Does the 2014 BMW M have auto start-stop?

On some configurations. The 4.4L 8-cylinder turbo is listed both with and without it, depending on the build.

Key takeaways

  • Start-stop cars restart the engine many times per drive, so they are usually fitted with an AGM or EFB battery - replace like with like.
  • Most systems have an off button that disables start-stop until the engine is next started; some models remember the setting.
2014 BMW M: every EPA-listed configuration
EngineDriveTransmissionStart-stop
4.4L 8-cylinder turboRWD7-speed automated manual (dual-clutch)Yes
4.4L 8-cylinder turboAWD6-speed automaticNo
4.4L 8-cylinder turboRWD6-speed manualYes

Source: U.S. EPA / DOE fuel economy data (fueleconomy.gov). Each row is one certified configuration; a trim or option not sold in a configuration is not listed.

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