Only the driver side has the "locking cylinder" Here's how to remove the handles that don't have the lock:
"Remove plug -3- from rear opening.
– Guide assembly tool -T10389- approx. 60 mm into door behind locking device -2- of bearing bracket.
– Pull assembly tool -T10389- backwards -arrow- until hook releases."
"– Pull door handle -2- in direction of -arrow a-.
– Pull cover cap -1- off door -arrow b-."
This is the special assembly tool that the instructions refer to:
Here's how to install it:
"– Pull door handle -2- in direction of -arrow a-.
– Slide cover cap -1- into bearing bracket -arrow b-."
"– Remove plug -5- from front opening.
– Guide a screwdriver -4- onto locking device -3- of bearing bracket.
– Push screwdriver inwards -arrow- until hook engages."
Here's the door lock overview (#4 is only on the driver side):
Hope this helps you out, good luck!