Another day, another fault....... Passenger front door will not open, the motor is making a slight noise but it won't unlock, does anyone know how I can open the door to change/check the motor?? Cheers.

You could try this, you might be lucky.

Prise off the circular plastic trim around the pop up button.
Grip the pop up button with a pair of long nose pliers and pull it up and at the same time pull the door handle.
The door may open.
Then again it may not.