BMW said Friday it is recalling 720,796 vehicles due to a risk ​of fire while cars are parked and turned ​off. The vehicles were previously recalled in 2024 ⁠for a water pump issue and must be repaired ​again, NHTSA said, adding that owners "should park your vehicle outside ​and away from buildings and other vehicles until the vehicle is repaired."

NHTSA said the following vehicles should ​be parked outside ​until repairs ⁠can be made:

  • 2012-2016 BMW 3 Series

  • 2012-2016 BMW 5 Series

  • 2012--2015 BMW X1

  • ​2012-2016 BMW Z4

  • 2013-2017 BMW X3

  • 2014-2016 ​BMW 2 ⁠Series coupe

  • 2014--2016 BMW 3 Series sportswagon

  • 2014-2016 BMW 328xi Gran Turismo

  • 2014-2016 BMW 4 Series convertible

  • 2014-2016 BMW ⁠4 ​Series coupe

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[–] 1 point 19 hours ago (5 children)

Yeah it's for parasitic draw, 2 speed water pump with a solenoid and speed sensor. If the water pump doesn't need to be on full blast it can be slowed to allow lower parasitic draw on the engine and improve fuel economy

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  • Yeah it’s for parasitic draw

    Lol I can't leave my Z3 in the garage for two weeks without the mechanical clock draining the battery so much the car won't start. I had to install a battery cutoff switch just to keep this from happening.

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  • [–] 1 point 19 hours ago (2 children)

    Seems like gains from that would be awfully small, but okay then.

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  • [–] 4 points 18 hours ago (1 child)

    Yes I'm sure the gains are small. I personally don't work on BMW I am a HD diesel engine technician. They do lots of small things that do add up. It's also for cold start emissions to get the engine to temp as fast as possible too. Lower pressure has been lowered on newer engines for less of a parasitic draw too

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  • [–] 1 point 16 hours ago

    I watch a dude on yt- adept ape I think- CAT guy. Really cool how those machines actually work.

    Still think a lot of the modern things like variable water pumps are a bit silly myself. More complexity helps on power and efficiency but makes them horrible to live with and keep outside warranty.

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