odometer shows fewer than real - 2018+ Ford EcoSport Forum
 
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post #1 of 5 (permalink) Old 01-09-2019, 02:48 PM Thread Starter
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odometer shows fewer than real

hi
i just bought a second hand ecosport, the new model from april 2018.
this week i discovered that the odometer shows fewer kilometers per hour than the real speed, it deviates 10%.
normally odometers show more than the real speed but this is dangerous for speedtickets .
I thought it might be the tires measure but the car dealer said the 16 inch are standard.
They can't find a way to adjust the odometer to the real speed.
Does anyone recognize this problem and perhaps have a solution?

greetings, Mike from holland
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post #2 of 5 (permalink) Old 01-10-2019, 10:43 AM
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I know its okay for speedometer to read higher than real speed, but I do not believe its acceptable for it to read slower. Generally 4% is the accepted deviation. https://www.thrillist.com/cars/your-...-japanese-cars
Quote:
Now it gets really crazy. The European Union requires adherence to UN ECE Regulation 39. Itís a lot of math, but the simple version is that no speedometer can read slower than the actual speed. Ever
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post #3 of 5 (permalink) Old 01-11-2019, 02:10 PM
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Originally Posted by mikemooij View Post
hi
i just bought a second hand ecosport, the new model from april 2018.
this week i discovered that the odometer shows fewer kilometers per hour than the real speed, it deviates 10%.
normally odometers show more than the real speed but this is dangerous for speedtickets .
I thought it might be the tires measure but the car dealer said the 16 inch are standard.
They can't find a way to adjust the odometer to the real speed.
Does anyone recognize this problem and perhaps have a solution?

greetings, Mike from holland

Are the tires on the vehicle the standard size? While they're 16" the diameter can vary quite a bit if the tire size is non-standard, and that will cause your speedometer to give a false reading. It was interesting to me that our Ecosports that came equipped with 17" tires had a smaller diameter than the SE that came with the 16" tires.

Tall Timbers
2018 Ford Ecosport SE and SES
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post #4 of 5 (permalink) Old 01-17-2019, 01:04 PM
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Were you aware of this issue prior to purchasing or is this just something that you have recently become aware of? Was it bought form an actual Ford dealership? I don't see how this is something they can let stand. In the interim you could rely on an external speedo from a gps.
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post #5 of 5 (permalink) Old 01-24-2019, 07:29 AM Thread Starter
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problem solved

By accident i discovered the cause of the problem.
I used 2 different app's to check the speed but i used them when my iPhone was connected with Ford Carplay through the usb connector.
When i use the app's without connection they show the right speed.
One way or another the app's are influenced by Ford Carplay
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