CITROËN C4 PICASSO Handbook page 300

In the event of a breakdown
F Extend the jack 3 until its head comes into contact with the jacking point A or B used; the
vehicle's contact surface A or B must engage with the central part of the head of the jack
F Raise the vehicle until there is sufficient space between the wheel and the ground to admit the
spare (not punctured) wheel easily.
298
F Remove the bolts and store them in a clean
place.
F Remove the wheel.