Had electrical problems with my unit dashboard lit up with front frame computer and rear frame computer not communicating , made it undriveable . Lights doing random things etc ,
Dealer changed something on night heater and night heater remote switch . Was ok for a few days then adblue pump failed and needed replacing none in country 3 days from Madrid for new one . Now we’re back to original fault FFC /RFC 
Been at the dealers for 10 days so far glad I got a demonstrator for the time being , and secondly glad I’m a mere employeee not an owner driver !