The navigation system in my 05MT has been working just fine, but the disc would not eject. I acquired an updated disc and wanted to install it. Granted, the old nav system in the Z sorta looks like my old Atari 2600 up against an XBox......but I like stuff to work if it's going to be in the car, so that 2005 disc had to come out and the unit had to be able to load the 6.8 update I got.

Bottom line is this: Something had turned to sticky goo and locked the center of the disc onto the bearing hub inside the player, therefore preventing ejection. You could probably simply pop off the bearing hub and clean both it and the disc center and be good to go......however, I would be concerned about pressing the disc down onto the inside of the transport and scratching it.

Start by removing the nav player from behind the driver's seat. The plastic trim piece pops out easily. Looking inside, you'll see that the unit is held in by two bolts on either side. My very patient use of a flexible driver let me get the two rearmost bolts out without removing the entire rear trim piece. However you do it, get the nav player out, undo the three connections on the back and take it to your bench:



You may be able to accomplish this without removing as many parts, but I went in looking for bent and broken stuff. Remove all the screws around the exterior and slide the metal case off:



The front panel is held on with these tabs, disengage them to remove it. There is a direct electrical connection that will disconnect when you remove the front panel:





Start removing screws and setting them aside:







Once you've removed enough screws, the transport assembly will come apart from the frame that holds the circuit board. Use caution here and do not lift this transport assembly too far off, otherwise you'll have to deal with reconnecting the ribbon cable.....they can be a real PITA sometimes:





Remove more screws from the transport assembly. Start with the one holding the little square of circuit board on top, then carefully move the bit of ribbon cable to the side so you can free up that top piece:





The problem lies under this bearing hub (or whatever it's called). Remove the screw and that metal spring:



Lifting it away revealed that the disc had become semi-bonded to the bearing hub. It was preventing the ejection of the disc. I have no idea what it was. It covered the mating surfaces uniformly and was sticky. I used some alcohol to clean it off both the disc and the bearing hub:



A gentle lift on one side allowed me to extract the disc so I could clean it up as well:





That's it. Reassembly is the reverse. I was able to load up my new disc with no problem.

 

Wow. That is all.

 

Where you get new disc? Lol

 

The new disc? Um....PM me for details.