The drive arm from the motor to the drivers side wiper has snapped, you can't just buy the arm it is a complete unit.
Apparantly it is a common part sold by peugeot £220.00 parts and labour from dealership, or £20.00 for the unit from scrapyard and 1 hour of your time to remove and install 6 nuts and 1 bolt + remove power plug to motor.
Undo the 3 nuts that hold the wipers on to the drive splines, with a pry bar or claw hammer lift of the 2 wiper arms. Remove the plastic cover to expose X3 32 mm nuts, remove these nuts and water seal washers, look under the wiper motor at the back bulk head and you will see a 10mm hex head bolt remove this bolt.
There is a wire spring holding the plug to the electric motor , lift the spring up from the bottom and pull the plug off. You can now drop and remove complete mechanism make sure fixing bracket at the bulk head does not catch on wiring loom when you pull the unit out.
Install method reverse of removal time approx 1 hour tools required socket set pry bar or claw hammer. Hope this helps.
Edited by Willo_ (24th Jul 2013 3:40pm)