Correct dest guidance not possible?
 

I have read about this here in the forum and I have the same problem.
It was the same with my MK3 navi, as it is with my new MK4 navi.
It seams like the problem are in the software because I can se the roads on the map and my position , but I got no guidance eather with voice or by arrows.
Here is a lot of clever people in this forum who can change logos and ad speed cameras. So please solv this problem because BMW is not listen to us customer

Hi,

your guidance don't work if you got no correct GPS posiition.
That meens, at in the Globe in the richt upper corner you have to see 3 green points if the are not there, than the Guidance is not working.

gr. Appy

Pulare.

I have the same problem in Sweden and its when you are driving om the grey colored roads you get this message right? The roads are there but they dont have any name (dirtroads) so I guess its the way it is :thumbdown


Tobmag

:thumbup:

Check your GPS antenna.

;o) Stf.

On my Mk3 I also get the same message when driving in southern Sweden off the main roads. Even on roads with names on.Same size roads in Denmark does not give the message, so I think it's a map software question. I'm using a Scandinavia 2005 CD and nav is updated to latest Mk3 version.

It´s no dirt road´s it´s inside a small village and on the major road´s in the village it show everything okey. So it is a restriction in the software from BMW. It´s no problem with the GPS antenna because it is showing my position the whole time I am driving. As I was reading in an earlier post here on X5 forum it was not like this with MK1 navigators.

I have been out and driving in my village now and I can se the road name´s on the navi even when the navi coulden´t guide me. As long as I´m driving on the yellow marked roads it guides when I´m leaving the yellow roads it stops guiding me.

make hard reset unit, if not be better downgrade to v27 , reset again and try it

That does not help. The problem is that there have been added a sort of a limit of guiding in the software by BMW or maybe it could be on the map disc by Navteq.

Looks like a map or disc error. Try to use this disc with another navigation system. Upgrade your navigation SW, try other map discs, enter destination directly (don't use address book).

I have tried a lot of map discs and upgrading but thats not the problem.

Look at this earlier message in this forum.

Originally Posted by pvoltti
Hello

I do have the same issue happening in my X5. I think that it is not any OS dependent issue. I have updated several operating systems and that symptom has always existed in my navigation system.

However, I've noticed that the route magnet feature has something to do with it. When you start your vehicle in a rural area (with a route magnet set on), the navigation system gives you audible insructions, but it does not show instructions visually. When you start your vehicle off-road (and the route magnet is set on), the navigation system gives you both the audible and visual instructions. However, when you the go on to any "digitized" road and then come back to "not digitized", the system does not give you instructions anymore.

I think that the reason is either a bug or it relates to some settings. I do not know how to fix it, but I would be very keen to know.




I'm willing to bet you probably never had an O/S older than V17, however.

With each NAV system I've had, it always functions fine until I update to newer than 17.2

Sure, the interfaces are pretty in the newer O/S, but at the loss of function.

I'll be able to post a DEFINITIVE answer on Saturday, as I will be obtaining another V17 disc (my last one got corrupted)

If I drop to V17 and all is well, then I've found an O/S issue no one else has either noticed, or cared to complain to BMWNA about.

Keep watch on this post.....

Here is another one.

Since we're hacking things now, NOMAD? 2WIRES? HELP !!
Here's the scenario.

When I had the MK1 system installed in my car, I could drive thru a very rural neighborhood in my car and receive visual and audio navigation instructions using my Navteq 2005.2 disc.

Later, I upgraded my MK1 to the latest version of software for that era hardware, and drove thru the same neighborhood, but received a message across the screen stating "CORRECT DEST. GUIDANCE NOT POSSIBLE" and no more audio instructions were given, but a white line was drawn straight to my destination. Keep in mind, I was using the EXACT SAME 2005.2 Navteq CD.

After dropping the O/S back to the Original version (v.8) the "CORRECT DEST. GUIDANCE NOT POSSIBLE" message went away.

Okay.....so later I upgraded to the MK3 and finally to the MK4, and they BOTH give "CORRECT DEST. GUIDANCE NOT POSSIBLE" when driving thru this neighborhood.

When poking thru the code with a standard hex editor, I discovered a line of text entitled "PARTIALLYDIGITIZEDGUIDANCE=OFF" or something to that effect.

It's my believe that this line of code was DISABLED in later versions of the NAV O/S and hence it keeping the later NAV computer from guiding corretly in EXTREMELY rural areas, but in the MK1, it must have been set to "ON"

Does ANYONE know how to crack the nut of correcting this rather annoying problem ?????

NOMAD ? 2WIRES ?

Routing and Guidance subsystems are very complicated. Nobody knows how they works. Even the authors. It will be much easier to write new navigation SW from scratch than fix/modify existing.

How come that a MK1 with an earlier software could guide but when you put the same mapdisc in a MK4 or MK3 then it´s not possible to get guiding. It could not be some faulty mapdisc it must be in the BMW software. I think they have put in some limit in the software. It´s realy crasy to not have guiding inside a village. Wath is happening if you are driving and look at the navigator and you should run over a kid?

It is a liability issue. Partially digitized roads (shown in gray on the map) have not been surveyed for things such as one-way, no left turn, etc.

Each road in the database has one/two/no way flags. It's mandatory.

That's true only for fully-digitized roads. Think of the gray roads as "pictures of roads", not "digitized roads".

If road stored in one of 'net' map layers - it must have 'allowed directions' flags. If road stored in 'landuse' blocks it only have name and class. Think of this road as colored line because landuse blocks are not used in routing/guidance.

I sold my old MK3 navi and I was talking to the byer today and he have an MK2 before he was upgrade to my old MK3. I ask him if he have se some problems with the guiding and he told me that road he is driving every day to get home was no problem with guiding but when he put in the MK3 he got the text Correct dest guidance not possible .

You can try to decrease map database release to disable some map features.

I can tell you people that yesterday a was able to get guidance in a "non guidance possible" area the text was on the monitor and the voice and arrows was guiding me inside the "non guiding possible" area. I was then driving outside this area and the text on the monitor disappeared. When I was going back into the non guiding area it stops guiding. I have tryed today to do the same thing but it is not working anymore. So if it could guide me one time the map cd must be fully digitalized and the bug is in the software from Bmw. Its ´strange that they bother by making perspective view instead of fixing old bugs?

I found out what I´m was doing when the guiding works for me. I was going to the route magnet menu and press the button for set I get guiding in non guiding area. That menu with route magnet are only available when you have put in an address an push the button för guiding. When you put in the selektor knob you get a menu and if you scroll down you find route magnet. It only guide me with voice now the arrows dont work but the first time I got guiding the arrows worked.