Q: Code P2020, and satellite navigation and DVD problems

I own an A5 3.0 TDI. I got the error code P2020 – intake manifold flap position sensor, 2 signal improbable. I tried carbon cleaning but it didn’t help. I tried resetting the code but when the engine gets cold the error code comes back on. Should I put in a new sensor? My other problem is the satellite navigation - sat nav and display said to – please insert navigation DVD. I checked the player in the boot and pressed eject. Then it made strange noises like it was trying to spin the disc but it couldn’t. Then it ejected the DVD then it loaded it back into the player. It did this 3 times. After the 3rd time it finally let me take the DVD out. Then I cleaned the disc with a laser cleaner but didn’t help. Do you have any ideas or suggestions?