Author Topic: How to Guide - Golf mk3 / Vento mileage programming.  (Read 4779 times)

Offline gareth_iowc

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Evening all,

So i have been searching for a way to re-program the mileage on some new clocks i've had for some time and i've finally done it.

so first off i did no create vdo.exe or mm.exe. these are the two files that are used to program the clocks. it was from a german site i can no longer find.

On the back on the clocks it will say if they are motometer or vdo clocks.

i have created a bootable iso with all the software tools you need to do this.


You will need:

My iso - https://www.dropbox.com/s/yr33cqxfn9nq2v6/Vag%20Clock%20bootdisk.iso?dl=0

Dupont connectors with wire attached

12v power supply

old laptop with a parallel port.

parallel male connector.

a meter of 3 core cable.


so the dupont connectors are used to push onto the pins at the back of the clocks.







 you will need to send:
12v + to pins 11 & 13
ground - to pins 3 & 5


you will need to make a cable from the clocks to the parallel connector - 

link to the pinout -  https://www.dropbox.com/s/a8wdd4jsugf4tdz/Tachokabel_neu_schaltplan.JPG?dl=0

i have made a quick video - https://www.youtube.com/watch?v=_X2JWQbCy2I

this guide is very rough atm as i'm in a rush. i will be back to tidy it up with more pictures etc but the video should explain most of it.

i cannot be responsible for you damaging your own clocks! play safe
« Last Edit: 27 April 2017, 21:30 by gareth_iowc »

Offline gasketface

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Re: How to Guide - Golf mk3 / Vento mileage programming.
« Reply #1 on: 03 June 2017, 20:29 »
I pay 10 a time to do same,there is no point me bothering to do any of the above or buying stuff to do it myself but thanks for sharing.

Offline mcrispVR6

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Re: How to Guide - Golf mk3 / Vento mileage programming.
« Reply #2 on: 29 August 2020, 18:14 »
Hi, a long time ago now, but I've searched all over the internet and really struggling to find instructions for connecting the instrument cluster to serial/parallel port and using the vdo or mm files to change the mileage... I really don't want to try and remove the eeprom chip to rewrite!  This is for a mk 3 cluster going in my old mk 2 golf, I just want to align the cluster with the true mileage of the vehicle. 

The link to the iso file above doesn't work, I suspect everything I need is on there...

Many thanks...

Offline itavaltalainen

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Re: How to Guide - Golf mk3 / Vento mileage programming.
« Reply #3 on: 05 September 2020, 20:32 »
PM me.
Should be able to help
2019 Seat Leon ST FR DSG 135kW - eclipse orange - 23k miles

Offline mcrispVR6

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Re: How to Guide - Golf mk3 / Vento mileage programming.
« Reply #4 on: 23 September 2020, 20:40 »
Hi Itavaltalainen, would much appreciate any help, I'm sorry I can't see how to send PMs on this forum.  If you have any info please post here!

Offline itavaltalainen

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Re: How to Guide - Golf mk3 / Vento mileage programming.
« Reply #5 on: 24 September 2020, 09:42 »
Send part numbers or photos of both clusters and their mileage.

You can only send PMs if you've got a certain number of posts.
You can email me, it's my forum user name @gmail.com
2019 Seat Leon ST FR DSG 135kW - eclipse orange - 23k miles

Offline itavaltalainen

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Re: How to Guide - Golf mk3 / Vento mileage programming.
« Reply #6 on: 05 October 2020, 15:56 »
Still need help or did you get it sorted?
2019 Seat Leon ST FR DSG 135kW - eclipse orange - 23k miles

Offline mcrispVR6

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Re: How to Guide - Golf mk3 / Vento mileage programming.
« Reply #7 on: 01 November 2020, 09:45 »
I got it sorted.

I've done a new post with updated links to info and videos, I hope this helps.  http://www.golfgtiforum.co.uk/index.php?topic=287004.0

Thanks to this thread for getting me started in the right direction.