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Thread: Loud wind noise with cross bars at regular speed

  1. #1
    Registered Member

    2017 CX-9 GT

    Join Date
    May 2017
    North Vancouver

    Loud wind noise with cross bars at regular speed

    Hi everyone,

    New here, just bought my first Mazda a couple of weeks ago, a 2017 CX-9 GT.

    I bought it with the roof cross bars. I would expect some noise when going at highway speeds, but even when going 45-55 km/h I'm hearing a loud wind howling noise coming from the top. It doesn't change when I open the moon roof so I'm assuming it is coming from the cross bars.

    I took it to the dealer and after 3 hours of trying various things they say they don't think the noise is normal but they can't figure out where it is coming from and where going to ask Mazda.

    Has anyone experienced anything similar?


  2. #2
    i-ACTIV AWD Aficionado Kedis82ZE8's Avatar
    Donated: $25

    '15 CX-5 GT AWD w/tech

    Join Date
    Jul 2014
    WA State
    Blog Entries
    Have you pulled off your cross bars as a test? They do generally add to some noise on quiet cars.
    NB1 Navigation Updates (990 NEW-5/2017) / Why Mazda moly oil? - Mazda TSBs / My Misc add-ons / Mazda owners manuals / SkyActiv Oil Analysis Thread

    Current Vehicles:

    '15 CX-5 GT 2.5L w/tech package & i-ACTIV AWD - Liquid Silver Metallic (04/2014 build-07/2014 delivery) - 34.5K Miles
    '12 Lexus GX 460 Premium (Toyota Land Cruiser Prado 150) / Torsen with ATRAC AWD
    '07 Infiniti G35x w/tech (Nissan Skyline V36) / ATTESA E-TS AWD
    '00 Jeep Wrangler 4.0L TJ - 5 speed / NP231 PT Transfer Case
    Former Vehicles:

    '02 Nissan Maxima GLE (Nissan Cefiro)
    '96 Ford Explorer 5.0L / AWD - Borg Warner 4404 viscous coupling
    '96 Mazda Protege LX (Mazda Familia (BH))
    '87 Nissan Maxima SE (Nissan Bluebird U11)
    '84 Mitsubishi Cordia Turbo (2-stroke motor would probably use less oil/150 miles per quart)
    '82 Buick Skylark (JUNK)

  3. #3
    Registered Member

    2016 CX-9 GT AWD

    Join Date
    Dec 2016
    Ventura, California
    I was trying to track down wind noise and finally a buddy asked about it. Turned out it wasn't wind noise at all; it was the rear air conditioning vent, which seems to default to a full blast fan speed.

    My cross bars didn't make any significant different in wind noise, but they would if they had a bike or ski rack attached.

  4. #4
    Registered Member

    2016 CX-5 GT AWD/ 2016 CX-9 GT AWD

    Join Date
    Jul 2009
    Northern NJ
    we had crossbars added at ~2000 miles and don't notice any difference in road or wind noise after adding them.

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