Hi I have a Citroen c3 the doors wouldn't lock so I changed the battery in the key it still won't lock doors or start the car the ignition comes on but it won't start please help
there are answers re reinitializing the key but I found this didn't help. it appears the fob/plip has developed a fault - worn contacts on the board and/or aerial I think. I suspect only fix is replacement which is $$$
Bruce
June 2013
did it start before you changed battery,if so you may have displaced or lost the transponder in key for immobiliser.try your spare key.