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Old 11-28-2006, 04:04 PM
Join Date: Nov 2006
Location: UK
Posts: 2
Womble is on a distinguished road
Unhappy Innacurate position on new Mk3 computer

Hi Folks,

I recently got my hands on a Mk3 computer out of a scrapped 5 series.

I have installed it, and it all works in theory, but the further I move away from home, the more inaccurate it becomes (up to a maximum so far of around 300 feet out of position).

It is detecting plenty of satellites, the voltage on the gyro is correct, and is increasing and decreasing in the right directions, and the wheel sensor number increases with speed.

Can anyone suggest what the problem might be? I've driven around 50 miles since installing it, although that has been mostly in small bursts. Does it need a reasonably long drive to give it time to calibrate itself properly?

It doesn't get completely lost, as it does from time to time snap to the correct location (which I assume is why it never goes further than 300 feet off) but it really is useless for in town navigation at the moment.

Please help!
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Old 11-28-2006, 10:14 PM
Join Date: Apr 2006
Location: USA
Posts: 84
bimmers888 is on a distinguished road
Try to let the car sit ouside for about 30 min w/a clear view to the sky, and leave the key in first turn position(don't start the car). This will allow the Nav and satelites to resynch, and download the current position.
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Old 11-29-2006, 03:38 PM
alexank's Avatar
Join Date: Nov 2005
Location: Ellesmere Shropshire UK
Posts: 51
alexank is on a distinguished road
Blimey Chris you get about!
Keith Alexander
Rover 75 CDT Connoisseur Se, MG ZT+T 190, MG ZT 260
Ellesmere Shropshire England
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Old 11-29-2006, 04:05 PM
Join Date: Nov 2006
Location: UK
Posts: 2
Womble is on a distinguished road
Indeed, and as you now know, about enough for the problem to have rectified itself this afternoon!

If there's a dilligent mod out there who would like to close this thread, please feel free to do so!
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