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Thread: Speedometer is fast, 2nd Mirage with same problem

  1. #1
    Senior Member Wallythacker's Avatar
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    Speedometer is fast, 2nd Mirage with same problem

    I discovered Shelby, my '17 is also afflicted with a speedo that is optimistic according to 2 gpses I own.

    Zer0, my '14 was 5-6kmh fast mostly over the entire the range, dropping to about 3-4kmh fast @130+ kmh when compared to 3 gps units I own. Zer0 had alloys, Shelby has steel wheels. Both were 5mt.

    Has anyone else noticed this or have a speedo that's off?


    Zero, 2014 ES Plus 5MT, written off but not forgotten.
    Zero II, 2014 SE, 5MT, climate She's HOME now!
    Shelby AKA "Cute", 2017 ES 5MT, A/C.

    Mirage owners look at the world differently than everyone else, but in a better way
    We're driving the Beetle of the 21st century, the greatest small car now available!

        __________________________________________

        click to view fuel log View my fuel log 2017 Mirage ES PLus 1.2 manual: 39.0 mpg (US) ... 16.6 km/L ... 6.0 L/100 km ... 46.8 mpg (Imp)


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    Senior Member MightyMirageMpg's Avatar
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    I have a habit of checking my speedo against the cop devices they setup at random that display your speed. (Not sure if you guys have that?) Mines dead on with factory diameter tires.

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    Senior Member Alex1a1f's Avatar
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    Quote Originally Posted by MightyMirageMpg View Post
    I have a habit of checking my speedo against the cop devices they setup at random that display your speed. (Not sure if you guys have that?) Mines dead on with factory diameter tires.
    Same with my 17.
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    Senior Member Wallythacker's Avatar
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    Weird. I get the only 2 Mirages with fast speedos. I know where one of those cop speed things are, I'll use it this weekend if it's still there.
    Zero, 2014 ES Plus 5MT, written off but not forgotten.
    Zero II, 2014 SE, 5MT, climate She's HOME now!
    Shelby AKA "Cute", 2017 ES 5MT, A/C.

    Mirage owners look at the world differently than everyone else, but in a better way
    We're driving the Beetle of the 21st century, the greatest small car now available!

        __________________________________________

        click to view fuel log View my fuel log 2017 Mirage ES PLus 1.2 manual: 39.0 mpg (US) ... 16.6 km/L ... 6.0 L/100 km ... 46.8 mpg (Imp)


  5. #5
    Moderator Eggman's Avatar
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    Quote Originally Posted by Wallythacker View Post
    Weird. I get the only 2 Mirages with fast speedos. I know where one of those cop speed things are, I'll use it this weekend if it's still there.
    Speck's speedometer also reports faster than actual speed.

    I have compared the driver's speedometer display with what the OBD-II reports. The OBD-II vehicle speed information is accurate when compared to the radar-based speed signs.

    It's not the only car I have driven that does this. I figure the factory setting is an error on the side of caution.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


  6. #6
    Senior Member Wallythacker's Avatar
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    Quote Originally Posted by Eggman View Post
    Speck's speedometer also reports faster than actual speed.

    It's not the only car I have driven that does this. I figure the factory setting is an error on the side of caution.
    Yep, places like the UK allow 10% + 2mph. Over that , even by 1 mph and you have a steep ticket. They have abundant speed cameras over there and plod loves to disguise themselves at the roadside and bag people.
    Zero, 2014 ES Plus 5MT, written off but not forgotten.
    Zero II, 2014 SE, 5MT, climate She's HOME now!
    Shelby AKA "Cute", 2017 ES 5MT, A/C.

    Mirage owners look at the world differently than everyone else, but in a better way
    We're driving the Beetle of the 21st century, the greatest small car now available!

        __________________________________________

        click to view fuel log View my fuel log 2017 Mirage ES PLus 1.2 manual: 39.0 mpg (US) ... 16.6 km/L ... 6.0 L/100 km ... 46.8 mpg (Imp)


  7. #7
    I had one driver say th
    Last edited by Fummins; 02-14-2021 at 01:12 AM.
    Mirage videos:

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage SE wussie cvt edition. 1.2 automatic: 37.7 mpg (US) ... 16.0 km/L ... 6.2 L/100 km ... 45.3 mpg (Imp)


  8. The Following User Says Thank You to Fummins For This Useful Post:

    Wallythacker (12-12-2017)

  9. #8
    I had another d plai te
    Last edited by Fummins; 02-14-2021 at 01:13 AM.
    Mirage videos:

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage SE wussie cvt edition. 1.2 automatic: 37.7 mpg (US) ... 16.0 km/L ... 6.2 L/100 km ... 45.3 mpg (Imp)


  10. #9
    Moderator Eggman's Avatar
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    Quote Originally Posted by Fummins View Post
    I had another driver complain about a speedo being off in a 17' cvt. I just checked it out and it reads high, say's your going 65kph when my phone say's 60.
    I thought that was pretty much standard practice on cars these days.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


  11. The Following User Says Thank You to Eggman For This Useful Post:

    Loren (08-23-2019)

  12. #10
    I did the same on


    Last edited by Fummins; 02-14-2021 at 01:13 AM.
    Mirage videos:

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage SE wussie cvt edition. 1.2 automatic: 37.7 mpg (US) ... 16.0 km/L ... 6.2 L/100 km ... 45.3 mpg (Imp)


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