SL500 (R230) Satnav showing wrong position

[Orb the Impaler]

Hello all,

My COMAND in my 2002 R230 SL500 has been showing my position incorrectly while driving. This has only happened since my battery control unit was changed a few months ago.

Basically the cursor showing where I am is always about a centimetre or so (on the screen) behind where I actually am and it seems "behind" when I turn into a road.

I am picking up satellites ok (normally show 7) and I have recalibrated and reinput the tyre size (front) as well as specifying a location. It still shows me as in the wrong place

I thought that it might be that the speedpulse has become disconnected but I would have thought that this would mean that stuff like the TV would keep working when I move - this isn't the case and it does indeed switch off.

Any suggestions? Taking it back to the dealer that did the work is a faint option but it's a long way away and if it's going to cost money then it isn't going to happen (I've been out of work for 3 months and stuff like this is not a priority use for my savings).

Cheers

 

[Orb the Impaler]

Nobody any idea what this might be?
It must be something very peculiar if Malcolm hasn't chimed in...

 

[television]

So many post these days that Maocolm does not see them all.

Go to SYS and check the settings for metric or imp measurements.

if this is no good use the service menu by pressing mute,1 and 3 together as described in this link

http://www.mercupgrades.com/Mercedes+COMAND+Diagnostic++Service++Mode-article-13.html