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  1. #1
    Saab Fan
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    27 Jul 2013
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    Took Delivery of Saab 9-3 Aero Sedan, Should Speedometer be Right?

    Last week I finally got my 2008 Saab 9-3 Aero Sedan. It's a neat car. It sure handles nicely, just a few cosmetic things I'd like to work on. Plus, it needs rotors all the way around, I get some shudder.

    However, I'm finding it somewhat annoying that the speedometer is inaccurate. I discovered this on the way home when family in the car, with smart phone apps told me I was driving slow.

    At 75 MPH on Saab speedometer I'm actually traveling 71 MPH.

    The car has the stock tires and wheels. What gives?

    Are all Saab speedometers inaccurate?

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    Last edited by r171mb; 16 August 2013 at 05:59. Reason: Misspelling/Typo in Title

  2. #2
    Saab Fan
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    14 Aug 2010
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    Chicago
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    03' 9-3 SS Linear--gone, 06' 9-3 SC Aero--gone, 09' 9-3 SS Aero Auto--yeah
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    Most European cars read like that, 2-3% fast for some reason. All of my Saabs and Audi's have. Ironically I'm in a loaner Chevy right now and the speedo is dead on. Just the way things are so your car is probably fine.

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  3. #3
    Saab Fan
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    Quote Originally Posted by CarbonFlash View Post
    Most European cars read like that, 2-3% fast for some reason. All of my Saabs and Audi's have. Ironically I'm in a loaner Chevy right now and the speedo is dead on. Just the way things are so your car is probably fine.
    70 but reading 74 just seems like a pretty big error, but I appreciate your confirmation. My Mercedes car reads spot on oddly.

    I'm sure you're right though, appreciate you sharing that observation too. I just feel funny having to drive 80 if I want to do 75, for example. It just seems odd (for Saab) to change what is "correct." ha.

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  4. #4
    Renato Piereck
    Spreading the Saab virus rpiereck's Avatar
    Join Date
    24 Jul 2011
    Location
    Ansbach, Germany
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    1,524
    Saab(s)
    '00 9-5 Aero SC, 87 900i 8v
    Thumbs Up:   2
    My SAABs are spot on from 55 to about 75 mph. Above and below that there are errors. Being 4 mph off at 75 mph is a 5% error, which isn't excessive. Better to show faster than slower!

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    Now: '00 Saab 9-5 Aero Combi - '89 Peugeot 205 CTI - '91 Peugeot 309 GTI
    Gone: '87 Saab 900i - '95 Saab 900 SE Turbo

  5. #5
    Jeffrey
    Master SaabTech/Moderator Burnsside42's Avatar
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    25 Oct 2010
    Location
    Point Pleasant, PA
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    1,310
    Saab(s)
    - 86' 9KT - 95' 9K Custom CS - 06' 9-3 Combi - 07' 9-7X Arc - 08' 9-3 Convertible - 08' 9-3 TurboX -
    Thumbs Up:   3
    My 2006 is the same way - I even make sure to program it for the specific tire and speed rating in it - doesn't fix that. As said - European cars are off as much as 5%. It's too keep you from speeding Use your phone's GPS for accurate speed or just figure you are 5MPH off above 75....

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    European Motor Services, LLC - Point Pleasant, PA 18950 - www.europeanmotorsvc.com

 

 

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