I have a 2007 mondeo st tdci when you get out the car & try to lock the car with the key fob it isn't locking the doors anybody help please.

 

Try a new battery in the fob.

If that doesn't work put the key in the ignition, and turn on and off 4 times within 6 seconds ( position 0 - II ) Dont start the car!

When it beeps press any button on the fob another it will beep again.

If that doesn't work it's almost certainly the driver's door lock motor.