Little guide as this is well covered online, but hopefully you'll find this when you need it.
Peel off the rubber cover on the edge of the door. Inside is a torx bolt. Whilst gently pulling the lock barrel outwards, unscrew the bolt until the barrel comes away. Don't completely unscrew the bolt as it might get lost inside the door.
Prise out the cable that connects to the door's lock. Then firmly slide the door handle towards the rear of the van until it clicks. The door handle should then be free to pull out of the door.
N.B. If you can avoid taking the handle off the door, do! As the spring swings out into the interior of the door and stops the windows from coming down.
Peel off the rubber cover on the edge of the door. Inside is a torx bolt. Whilst gently pulling the lock barrel outwards, unscrew the bolt until the barrel comes away. Don't completely unscrew the bolt as it might get lost inside the door.
Prise out the cable that connects to the door's lock. Then firmly slide the door handle towards the rear of the van until it clicks. The door handle should then be free to pull out of the door.
N.B. If you can avoid taking the handle off the door, do! As the spring swings out into the interior of the door and stops the windows from coming down.