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Converting speedo from MPH to KPH


A4PD130
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Hmm, I may be wrong, but IIRC the DIS can be recoded. However, I'm not sure whether that only works on a new unit.. The speedo may perhaps be as simple as replacing the faceplate? You probably will get stuck with the odometer. It would hugely surprise me if that was changeable...

Best may be to try with VAG-COM what's possible and not.

The dash cluster is an exchange part btw, but it won't be cheap imho.

However, in the end it may be better not to mess with it. A buyer may feel better with an original cluster, even if it is indicated in miles. The kms are probably indicated as well on the speedo, no? Perhaps see if the DIS is changeable, and offer to set that to km as an option.

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Yeah, but if you think the other way around, i.e. on the mainland; If there were some dishonest car salesman (a stretch to imagine such a thing), some punters may be thinking they're buying a car with f.i. 50K km, whilst in fact they're looking at 50K miles (~ 80K km).

Certanly if the speedo is in kms, not many will suspect the odometer might be indicated in miles!

BTW, I'd be interested to hear which code. Just out of curiousity, as I read this was only possible with a NEW unit...

<ul type="square"> [*] Adaption is only possible for dash panel inserts with a mileage of up to max. 100 km.

[*] Adaption can only be performed once for a given dash panel insert.

[*] It is only possible to enter a higher adaption value (greater than 100 km).

[*] Up to model year 2001: Confirmed incorrect entries cannot be corrected. Dash panel insert must then be replaced.

[*] As of model year 2002: Incorrect entries can be corrected until a distance of 5 km has been covered once following initial change.

[*] Adaption is implemented in miles in countries where distances are measured in miles

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[ QUOTE ]

Certanly if the speedo is in kms, not many will suspect the odometer might be indicated in miles!

[/ QUOTE ]

... except that the little ledgend next to the numbers indicates 'miles' or 'km', as appropriate!

[ QUOTE ]

BTW, I'd be interested to hear which code. Just out of curiousity, as I read this was only possible with a NEW unit...

[/ QUOTE ]

That's for changing the actual count (or distance), not the units in which it is displayed.

[ QUOTE ]

<ul type="square"> [*] Adaption is only possible for dash panel inserts with a mileage of up to max. 100 km.

[*] Adaption can only be performed once for a given dash panel insert.

[*] It is only possible to enter a higher adaption value (greater than 100 km).

[*] Up to model year 2001: Confirmed incorrect entries cannot be corrected. Dash panel insert must then be replaced.

[*] As of model year 2002: Incorrect entries can be corrected until a distance of 5 km has been covered once following initial change.

[*] Adaption is implemented in miles in countries where distances are measured in miles

[/ QUOTE ]

To alter the units, select 'Instruments', 'Recode'.

There should be a 5-digit value - mine is 01484. The third digit ('4'), signifies the 'market coding'. Unfortunately, I don't know what the value 4 signifies, but the values I do know are:

0 - Germany, 24 hour clock

1 - Rest of World, 24 hour clock

2 - USA, 12 hour clock

3 - Canada, 12 hour clock.

I guess that '4' is the value for UK (24 hour clock, imperial units). I don't know what other facilities are controlled by this setting - ie. what's the difference between '0' and '1'. It may be that '0' enables the radio clock (where fitted), and '1' disables it.

Setting this value to 0 or 1 (or, presumably, 3) will alter the odometer to read km. It does not alter the actual distance recorded, just the units in which it is displayed.

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[ QUOTE ]

There should be a 5-digit value - mine is 01484. The third digit ('4'), signifies the 'market coding'. Unfortunately, I don't know what the value 4 signifies

[/ QUOTE ]

Imho:

01 Larger fuel tank capacity 80 litres for 8-cylinder petrol engine and S6

4 Great Britain (GB)

8 8-cylinder

4 Turbo engine

Mine is: 00183

00 No optional extra All 8-cylinders with 90 litre tank and all 6-cylinders with 80 litre tank

1 RoW/Left-hand drive

8 8-cylinder

3 8-cylinder petrol engine

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[ QUOTE ]

Imho:

01 Larger fuel tank capacity 80 litres for 8-cylinder petrol engine and S6

4 Great Britain (GB)

8 8-cylinder

4 Turbo engine

Mine is: 00183

00 No optional extra All 8-cylinders with 90 litre tank and all 6-cylinders with 80 litre tank

1 RoW/Left-hand drive

8 8-cylinder

3 8-cylinder petrol engine

[/ QUOTE ]

Yep, I would agree with this. The first two digits certainly refer to fitted options, and may well be model-specific. I only have info for the B5, where various settings relate to brakepad wear sensor, seatbelt warning etc.

The third and fourth digits appear to be standardised across the range, and changing the third digit definitely controls the units used for the odometer display and the 12/24 hour format for the clock. However, I'm not sure about the LHD bit - I didn't notice any left/right changes when I altered my setting. L/RHD setting is used in the central locking controller code. I think the fifth digit relates to the distance impulse multiplier (ie how many pulses are received per km), and the setting may well be model/transmission specific.

If you have details of the various C5 model settings, I would be interested to have a copy (or know what your source is).

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