You will need a TORX T35 key.
If the door lock is difficult to close or does not close at all, adjust the position of the door lock latch. To do this, do the following.
1. Loosen the two screws securing the latch.
2. By shifting the latch to the right or left or up and down, achieve a clear unlocking and locking of the door lock.
3. Tighten the screws securing the lock latch to a torque of 12.7-20.6 Nm. Check the operation of the lock and, if necessary, repeat the adjustment.