i cannot lock my back door at all on my citroen c5 an with there being no locking mechanism inside the car i only havr the key fob for it my car is insecure. i have the c5 2litre hdi executive.

ant, January 2009

hello...
Unfortunately, one has to either change the lock (go to a scrap yard!!!) or dismantle the old one and clean the electric motor...a pain to dismantle...

Tony, July 2010

The door lock is to blame.I have replaced both in rear doors, the first one packing up in a 1 yo car.Recently after 6 years it refused to work again.I took it out ,dried ,lubricated and put it back.It's working so far.I think it's a design failure cause front ones are ok.My advice- if repaired, open and shut rear doors at least once every 3 days to remove moisture.

Marius, February 2009

is it your tailgate-lock ?? Mine broke too. Replacement lock from Citroen dealer was only 32 Euro. Very easy to replace.

Fiatmann, February 2009