Need Help With A Mk4 Navigation!!!
 

I Have A Professional Navigation With Mk4 (soft V29.1) In A Bmw E46. While I Was Driving I Realise That The Display Stucked!!! I Could Change Radio Stations And Cd's But The Display Was Stuck With The Same Icon On The Nav. I Tried To Take Out The Dvd But Nothing, I Finally Managed To Take Out The Dvd, I Changed Th Software Version To V27 And Everything Worked Fine!!! That Happened Twice And I Am Worried.
Do You Have Any Advise For Me???????????
Thank You!!!

your nav crashed.

Make sure:
a) your car battery is good - measure it, get a load test done. Bad car batteries can cause under-voltage and cause all sorts of nav problems.

b) likewise, make sure your alternator is good. Monitor the charging voltage in your instrument cluster - put cluster into test mode, move to the test that shows battery voltage, and observe when driving. Good voltage is around 14.5 voltages. Anything below around 13 is poor.

c) if battery and alternator is good, make sure the map disc is in good order. Make sure it is not scratched and has no fingerprints etc. Try a new (not a copy) map disc. This can make a huge difference. If you only have a copy, try making a new copy on a new CD-R (or DVD, as applicable)

d) if all of the above is good, your nav computer may be faulty. Try swapping it with another car to see if the fault stays with the nav computer.

thank you!!!
my battery and alternator are ok.

i will try a new dvd and see what happens...

i had same problem few days ago, it froze and after a few minutes it made restart by itself (all happened when driving). ver 29.1

2 days now with v27 everything works fine!!!
i think that the problem was v29.1

had the same thing again today, 3 times. first time the MK4 nav boot up with safe mode:S now its back to normal again. i hope it wont kill my MK4.

I had this with v26x or something.
I Upgraded it to v29.1 and had a new dvd burned.
Ever since no problemes encouterd.

I think it was the dvd which might be damagd.

Goodluck

I upgraded to 29.1 about a month ago. I have experienced this once since then, and never before. Before, I was on whatever was originally loaded when the car was built in late 2002...

What do you mean by "Safe mode" - I have never seen this...??

screen goes monochrome, blue and white colours only and no GPS menu.