Door lock problems

HELP.. The door locks on my 1996 Discovery are slowly packing up. The passenger and near side rear doors seem to open ok with the key fob but the lock has to be physically held up inside for the door to open....every time.
I've changed the actuator but still the same. Any ideas please. Can it be fixed and how.

Almost certain to be the little circular springs in the locks. They're handed so make sure you get the right side or a full set.

springs

Paul D said:

Almost certain to be the little circular springs in the locks. They're handed so make sure you get the right side or a full set.

springs

Click to expand...

What he said - I need one on my back door now too.

PS, fittings a b!tch LOL