A8 pop up navigation screen stuck

I'm not sure what an "A8" is.
Is it an Audi ?
Call the dealer for the company that made the car and ask them. You may need to make several calls to get an answer.
God bless your efforts.

On Dodge Stratus' door bearings are known to lock up. It is one located in the middle on the door arm. When they seize, the door pops because it no longer glides on the arm.

Should be a round plug toward the bottom of the for panel..slightly off center.. pop it out and you can get a screwdriver in there and pop the latch open

Owner manual or engine manual. What is your question?

I had a similar problem, when i would press the gas pedal down X%, the car would shake, and kinda do a "Pop pop pop pop pop" noise.. (NOT a backfire, like a light popping noise), ended up being a tiny air leak in a hose.. Fixed that.. 6 mo. later, a gasket in the throttle body had sprung a leak (Leak of air pressure), and the car is doing this again.. feels like its gonna stall, and does it when i accelerate fast, or go over 60.. This is all because jaguar uses digital gas pedals (VS "Drive by wire"). if this is it, its a easy, cheap fix.
Just start the car, and put your ear towards the engine (With the hood up.. watching out for moving parts), listen for a hissing noise.. Your car should not hiss at all.

my A8 is giving me the same problem with the navigation screen. i was just wondering if you ever figured out what the problem is?

mcdevito75 here, Sounds as though you have a worn or broken timeing belt, or problem with -in the ignition system of the engine. Have the shop check it out for you.

Either one of the vacuum hoses has popped off or there is a leak in the system. The system uses a vacuum pump to push/pull air through hoses connected to actuators in each door..
Have someone activate the system while you listen in the trunk for the pump, find it and see if one of the hoses has fallen off there.

Idle Air Control (IAC) motor is sticking.You can try taking it off and cleaning it but most likely will have to replace it.

is it setting any codes?
a stuck open EGR valve will cause this problem