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smac02 · Apr 1, 2016

Hi all, back again after a 2 year break of Disco ownership after the last one was written off in an RTA.
So, just purchased a reasonable 2001 D2 and ran it through my Nanocom. I bought the vehicle with 110,000 miles on the clock, on the Nanocom the BCU and the speedo reading match at 177,000 ? But the dash speedo reads the 110, 000 as purchased.
I've checked the service records and MOT's all seems ok, but of course the Disco could have had a little haircut every year with an owner.
Can't understand though why the BCU and internal speedo read one mileage and the dash speedo reads anothe. Any ideas anyone.

neilly · Apr 1, 2016

I think you will find...

Nanocom reads KM....

Cheers

neilly · Apr 1, 2016

Multiply your Miles by 1.6093

see what you get.

wammers · Apr 1, 2016

neilly said:
Multiply your Miles by 1.6093

see what you get.

There is a facility to sync BCU to odometer. Or sync the odometer to the BCU. Whether it will sync a lower mileage from odometer to BCU i don't know, maybe it won't. Either the BCUs been changed or the odometer.

neilly · Apr 1, 2016

Or you can change your instrument panel to read KM, this should show exactly the same figure as the nanocom is reading from the BCU.

I do not think you have a problem.

Cheers

neilly · Apr 1, 2016

wammers said:
There is a facility to sync BCU to odometer. Or sync the odometer to the BCU. Whether it will sync a lower mileage from odometer to BCU i don't know, maybe it won't. Either the BCUs been changed or the odometer.

Wammers, I think the OP will find that the nanocom has read KM, his odometer is showing Miles. Nanocom does not read miles from the BCU.
I do not think anything has been changed.

Cheers

brian47 · Apr 1, 2016

wammers said:
There is a facility to sync BCU to odometer. Or sync the odometer to the BCU. Whether it will sync a lower mileage from odometer to BCU i don't know, maybe it won't. Either the BCUs been changed or the odometer.

I was under the impression that if the BCU, IDM or Odometer were ever changed, the system would re-sync with the higher mileage showing on the odometer. Maybe I've been misled.
Coming to think about it, the odometer is "dumb" and only displays what is in the IDM.

smac02 · Apr 1, 2016

neilly said:
I think you will find...

Nanocom reads KM....

Cheers

Ha, thanks for that guys. Was thinking I'd been sold a pup. Mood much better now. The answer was way too logical for me. Need to spend more time withe Nanocom I reckon.

sierrafery · Apr 2, 2016

The IDM has nothing to do with mileage, only the odometer and the BCU are involved both with theyrs own memory and none of them accepting lower mileage than stored in case of syncronisation... though if a higher mileage instrument pack is fitted the BCU will automatically increment it's stored mileage accordingly after 16 consecutive readings but if a lower mileage instrument pack is fitted and the odometer error warning is disabled the odometer reading will be unchanged and the real mileage is readable only in the BCU...so that's something to be aware of and if the mileage on a car is suspect check the mileage stored in the BCU(as said, be aware that it's in Km)

wammers · Apr 2, 2016

It would indeed seem that 110,000 is 177,027.84 Km.

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smac02

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neilly

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neilly

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wammers

No longer with us, RIP

neilly

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neilly

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brian47

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smac02

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sierrafery

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wammers

No longer with us, RIP

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