This is the Forum for all your Citroen Technical Questions, Problems or Advice. Moderator: RichardW. Messages: 21 1; 2; C4 Grand Picasso gearbox fault. This is a five-seater, however, those seeking an additional two seats can opt for the Citroen C4 Grand Picasso - which includes the three rear seats party piece of sliding and reclining individually. Citroen C4 Grand Picasso. Reply OP Posts Only. Prev of Huge reliability issues - I had one and it was a dog with electrical gremlins that the only fix was a new loom. Then a friend got one on U5L2V.

is citroen c4 grand picasso reliable