I just re-keyed my new to me Vario cases. The first one went so smooth I grabbed my camera and snapped some photos of the second re-keying. Heres a little pictorial on changing the locks to match your key: Start by removing the three Phillips screws shown here: The latching assembly should then lift right out: Remove the yellow part shown in the center of this photo: Next, use a little screw driver to depress the tiny tab shown at the bottom of this photo. This spring loaded tab holds the cylinder in the barrel: Insert your key and remove the cylinder from the barrel (the key will keep the tumblers in place until you are ready to start switching them around): This blurry photo (sorry) shows the removed cylinder. Note how some of the tumblers protrude from the cylinder with the key inserted. Your goal is to rearrange the tumblers in such a manner that none protrude from the cylinder when the key is inserted: With the key removed, the tumblers will slide right out as shown. You do not need to change any tumblers that were not sticking out. These are already in the right position. This part isnt as bad as you might think. There are only three different tumblers. They are marked 1, 2, and 3. All you have to do is move them around until you find the right combination. I was lucky enough to have a re-keying kit (BMW part number 51 25 7 698 202). You can still re-key your lock even if you dont have this kit. Just get as many tumblers as you can in their correct positions. Just leave out the ones that you cant get right. Note that the tab sticking out at the end opposite the key is not a tumbler. It is the spring loaded tab that holds the cylinder in the barrel. Dont mess with it. Also, the position just above this locking tab does not get a tumbler. Leave this position empty. The only other thing you need to be concerned about is the tiny spring that drops into each tumbler slot. If youre careful this spring will stay in place as you move the tumblers around. Here is a photo of the cylinder with all of the tumblers in the correct position. Note how none of the tumblers protrude from the cylinder. You are now ready to reassemble the components in reverse order. Reinsert the cylinder into the barrel. Turn it until it falls into place and locks: Reinstall the yellow lockout piece: Place the latching assembly back in its original position: Reinstall the three Phillips screws: All done! Locked: Unlocked: Sorry for the blurry pics.