Hi Guys
when locking car via remote it only locks the 2 front doors and leaves the back ones unlocked, i then have to press it again to lock the back ones
surely this cant be right, or am i doing something wrong. Only found problem because missus tends to check doors are all locked before going into house

Seems you have a problem, they will be locking I expect on the second press as that also initiates the double locking. My 07 started not locking the rear off side door and I sprayed it with WD40 and it seemed to work ok but I traded it in a week or so later. You may try a search on here as it has come up a couple of times regarding the rear passenger doors not locking but not both together.