Denso navigation problem

Question edited for clarity.

Did you check the lock slider if it is like this one?

https://www.jaginfo.org/threads/dvd-navigation-disk-won%E2%80%99t-eject.112786/

https://www.google.com/search?q=2008+Jaguar+XF+navigation+disc+will+not+eject

Removing the player

https://www.google.com/search?q=2008+Jaguar+XF+remove+disc+player

..

If you can play a DVD, the nav disc is dirty or worn. Try gently cleaning it with a flat screen tv cleaning solution and try again. If a DVD won't play, the read head in the player is either dirty or shot - you should have an A/V shop try to clean it, as replacing the unit is $$$$$.

The dealer can help, w/vin #

first thing is it a proper disc not a copy one. as it will not read a copy disc. 2 there are a few 2010 denso discs about for different models. some work some don't. 3 check the disc on a pc check it will be read on the pc or laptops drive.... reading disc all the time can also be the drive is dirty or the disc is so clean it or them. also check and see if another disc will work music etc. if you have the same problem with the music disc then its can be the lazer head its self it may need cleaning or has just faild

These navigation disks are prone to contamination from dust particles over the years. If the disk is not damaged (scratched), you can try gently cleaning it to see if that works. You can also try a special lens cleaning disc to clear any dust from the reader.
However, if you have you followed all the owners manual instructions for removing it and it won't, you have a much more serious problem with the system. All I can suggest is a trip to a dealer to see if they can help.

i have the same problem with my 2003 volvo, did u fix it?

yo will need to replace unit yo may need to take it to dealer when they send old unit in they will remove it at the factory and mail youu the media left inside

there is an internal fault in the nav unit

NAV unit uses a DVD disc. If its a copy, it may or may not work. I suggest you remove the NAV disc, unplug the NAV unit from power for 4-5 minutes, reconnect the NAV and try inserting the disc again to see if it reads. If it still does not read, another NAV disc needs to be inserted to verify its not a "bad" NAV DVD disc issue. If it still cannot read the second disc, the NAV unit is bad. The handbook feature needs the disc inserted in the slot 1 of the CD changer unit.

Installing the DVD Map Disc Your dealer/retailer may have installed the map DVD. If the map DVD was not installed, do the following to load it:
Read the following steps completely.

1. Turn the ignition on. The vehicle must be in P (Park) to perform this operation.
2. Press (power) to turn the navigation system on.
3. Press the NAV hard key.
4. Touch the Insert Map Disc screen button. The screen opens to access the map DVD slot.
5. Load the map DVD partway into the slot. The system pulls it in. The screen cannot be closed until a double beep is heard.
   Notice: Pressing directly on the navigation screen may cause damage. Repairs would not be covered by the vehicle's warranty. Do not press directly on the navigation screen.
   
6. To close the screen, slightly push up on the two outer corners until the screen is in position. Then push the screen in by pushing on the four outer corners until a click is heard.
7. Set the search area. See "Setting the Search Area" earlier in this section.

Ejecting the DVD Map Disc The navigation portion of the system cannot be used if the DVD map disc is not loaded.

1. Press the MENU key to enter the Menu options, then press the MENU key repeatedly until Nav is selected or touch the Nav screen button.
2. Touch the Map Database Information screen button.
3. Touch the Eject Map Disc screen button. The screen tilts, exposing the map DVD slot.
4. Press the eject button, located next to the DVD map disc slot, and the disc ejects. Pull the disc out. The screen cannot be closed until a double beep is heard.
   Notice: Pressing directly on the navigation screen may cause damage. Repairs would not be covered by the vehicle's warranty. Do not press directly on the navigation screen.
   
5. To close the screen, slightly push up on the two outer corners until the screen is in position. Then push the screen in by pushing on the four outer corners until a click is heard.