Key fob only opens drivers door

Try replacing the FOB battery. Check the fuse for door locks. usually located in the engine bay fuse box. Temporarily you can lock the other doors from inside the van and lock the driver door last using the key. Another possibility is that the locking switch in the driver door is faulty or the central locking motor is. All other doors will only lock if the driver door locking system works. When you lock the driver door, the locking motor will hit a switch that will lock the other doors.

Wondering if the door lock mechanisms needs greasing
like some form of resistance to movement may put the power locking out of kilter ..

Check your car setup. Read the manual on MAXI DOT and look for Main Menu > Settings > Comfort > Central Locking. Within the Comfort menu you can also reset to factory which should set central locking to automatic.
I hope this helps.

central locking working on vaccum system..trying getting it serviced..should sort out

usually if you unlock the drivers door twice it will unlock the other doors.

hi
you need to try a couple of diffrent things with this problem


1- get in drivers seat close doors and lock by hand
,
2- then put key in ignition and turn key till dash lights come on (do not start)

3- while key in ignition unlock doors with fob ,

4 - then lock again with fob while key in ignition.

5- then remove key exit car try locking doors from out side this should reset all your door locks

I believe you have to press the button very quickly 2 times. One time is just for the drivers door then two times very quick to unlock all..

turn key twice when opening, ie turn right. once drivers door will unlock, turn twice passengers doors will unlock, and locking is turn anti clock wise once will lock all doors, turn twice will set door dead locks.dead locks will stop openand lock internal button working and handle from opening door. the same actions can be applied to the remote one press drivers door, two press passenger doors, press and hold unlock button for 5 seconds and rear window will open.

More than likely your front driver door module has failed.  You will need to replace this module and readapt the key fobs for locking and unlocking

short in wiring replace all with aftermarket one