Sat Nav MKIV Very Strange Question?

[brucemillar]

Folks

I think I may have lost the plot here?

Last week, I was attempting to fix an issue with MKIV Nav (now resolved).

But here is the thing...

I am sure, I put a genuine BMW Map, in the drive and then by mistake (I forgot there was a disc already in there) I put another map disc in the drive. That map disc has been accepted and is working but keeps freezing the unit with "error reading disc"

Am I mad here? Is it possible that I could have two discs in the drive but only one working and being able to be ejected?

For the life of me, I cannot find my original genuine BMW disc anywhere? I know I did install it in the drive. I am now convinced that it is still in there.

Before I reach for the screwdrivers, can anybody tell me if what I am thinking has happened is possible? I can only imagine this scenario, if the original disc is somehow stuck, but allowing the next disc to slide underneath it and still be read.

Failing this explanation, the disc fairies have crept in and had it away with my original disc, under the cover of darkness. I have tested my sanity by counting fingers and toes and all three of my testicles.

Thoughts folks please?

[scourtaud23]

It has happened to me in a 2005 Mini convertible (MKIV too) but it didn't work at all, didn't eject, screwdrivers and patience were required...

[brucemillar]

Thank you. Assuming we are both not mad? Then you may have confirmed my theory. I shall take the covers off and have a poke around.

[wpoll]

I've seen this too - but usually only in changers though (removed 7 discs from a 6 CD unit once). Not mine, I hasten to add!!

I guess it's possible that the missing disc is in there but it's highly unlikely the unit would eject etc.

Let us know what you find! Oh, and check the other jewel-case or sleeve for the missing disc!

[brucemillar]

I did check the case/sleeve and also pulled the car apart. I also tried blaming my wife. That usually gets her searching to prove her innocence. She also drew a blank.

I shall update when I get it apart tomorrow.

[scourtaud23]

It souldn't take too long to be sure if it in or not, the unit is nicely accessible on the X5... (Its was under the passenger seat in my MCSC)

[brucemillar]

Well it was/is not inside the unit!!. But it did give me the opportunity to clean the laser with Isopropyl and my air line.

My madness is confirmed. I have somehow managed to completely lose a Genuine BMW Map Disc, that I had in the car and in my hands?

I needed this to prove my theory that copied discs cause errors and do not read correctly as well as cause the nav to freeze on the buttons.

I have also read that using hacked discs with Speed Camera's etc can cause the same issues.

I have now gone back to V25 Firmware with No TMC Maps and No Speed Camera's but still on copied discs. I shall update on my findings.

[scourtaud23]

Insanity is a valid defense...

At least now you're sure. As for the bugs with copied discs, you've interested me in trying to find maps CDs to at least have one that shows roads where I am so if I do find them, I'll give it a try and see if they work correctly.

As for the genuine disc, I'm quite sure it'll turn up someday.

[Overboost]

Originally Posted by brucemillar

My madness is confirmed. I have somehow managed to completely lose a Genuine BMW Map Disc, that I had in the car and in my hands?

We call it a "senior moment" over here. Don't worry, I'm having more and more of them too..

[dkl]

Originally Posted by brucemillar

Well it was/is not inside the unit!!. But it did give me the opportunity to clean the laser with Isopropyl and my air line.

My madness is confirmed. I have somehow managed to completely lose a Genuine BMW Map Disc, that I had in the car and in my hands?

I needed this to prove my theory that copied discs cause errors and do not read correctly as well as cause the nav to freeze on the buttons.

I have also read that using hacked discs with Speed Camera's etc can cause the same issues.

I have now gone back to V25 Firmware with No TMC Maps and No Speed Camera's but still on copied discs. I shall update on my findings.

Copied discs does cause the slower readings and I can hear the laser pickup do "search" a lot more (I can hear this because the DVD drive sits just behind my right ear on my MCoupe). But even using OE Genuine BMW Map discs, the laser pickup unit eventually gave up and start giving me that "errors" and won't read it properly (had a couple of Genuine BMW Maps and both behaved the same). Had it repaired a few weeks ago and now working perfectly, but I hadn't tried a copy disc to see how well it reads it yet.