The reason ? After starting the engine, the navigation is enabled with a delay . Maybe 5-10 minutes . There is no playback of CD disk with hard disk memory HDD(virtual). Thank you

 

Mikl, how big of a flash drive do you have in the USB port? I find that things are slowed down a lot when you have a large (say a 128GB stick) in the port. The radio will process what is on the USB as it is trying to get the rest of the radio up and going and this will result in things being slow. So, if you have this condition, see what you have with the stick removed. If the problem continues, then you have an issue with the radio. If it clears up, then you need to break up your USB stick into smaller units to remove this delay.

 

Thank you. Into the USB port nothing is inserted. Even when the navigation is activated after restarting the engine, sat NAV some time not working. Noticed that at the moment there is no inscription on the monitor "save disk". Perhaps the hard drive is faulty? Sorry for bad English

 

The satnav data, CD player and HDD functions are all powered by the same module (the IAM) on pre 2016 and some later X351s.

Maybe you have a loose cable, or a failing module. If the vehicle is still in warranty get a dealer to fix it, otherwise take the screen surround off and remove the IAM (CD player module) and then check and reseat all the connectors between that and the touch screen. Refer to this other post for the removal instructions. The IAM sits behind the AC button panel.

https://www.jaguarforums.com/forum/x...2/#post1522283