i got car back back from the dealer since the navigation kept freezing
it says:
faulty dvd drive at ccc short test found no related fault codes, checked and found etc. then faulty dvd drive in ccc. Removed CCC unit, replaced the dvd drive
what is that?
the CCC

also stated that the driver seat moves around
and it says
road test the vehicle with shop foreman, unable to duplicate
whats that?
does that mean they couldnt find a problem?
the unable to duplicate

can you answer all these questions? thanks