Hi,

Please bear with me as this is my first post.

I've bought an imported 2014 FL2. It came from Japan, lovely car, some different options on it from what I have read here over the past few hours. (Great forum)

Anyway, the speedo dial is the usual "nearly right" as are most UK cars but the one that catches your eye, the digital one, is a long way out. Reads about 8 MPH higher all the time.

I have a IID GAP tool and looked at the "Tire size (rolling circumference) and it said 2175 which is wrong for my 235/65x17 wheels. I calculated it should be 2315 which I changed it to and the reversing sensors stopped working (may or may not be related) and it had no effect on the digital speed reading so I have reverted back (and reversing sensors now work again). Very odd.

Before I delve further I thought I would ask the group, where should I go next to try and deal with this?

I know there is a "Tyre Size MSB – IPC" setting - is this where I should look or is that something else?

Thanks in advance.

Justin

I have no practical knowledge of the IID tool but google shows you are not alone in having problems re-calibrating the digital speedo.
I found this, I don't know if it helps?
https://www.landroverworld.org/threads/spe...ool.42247/ FL2 2007 2.2d Auto SE. Baltic Blue.

Yes, thanks for the link. I had read that last night, it doesn't really come to a conclusion does it. Clearly others asking similar question though.

If you change to kilometres setting do you have the same issue. Procrastination, mankind's greatest labour saving device!

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I'll have a look tomorrow thanks

Just been on a trip, digital is always 5kmh higher it seems. IID live shows that the car knows what speed it is doing so somewhere there is an intentional safety factor added to the digital readout it seems?

Anyone any idea what CCF setting it might he?

It's curious as to why LR calibrated the digital speedometer like that. The wife's Audi A5 convertible also has the option of a digital speed readout, but it's absolutely bang on with the mechanical speedometer, which itself reads approximately ~2% fast when it has 4 new tyres. Hyundai Ioniq 5 Ultimate. The family car.
2009 Rimini Red SE TD4. Gone.
2006 Tonga Green i6 HSE. Gone.
Audi A5 convertible, my daily driver.
1972 Hillman Avenger GT, the project.

Bit of an update. Having scrolled through the entire CCF I think these 3 fields have something to do with it.

I shall do dome testing.

Click image to enlarge