Hi Richard,
With the handle pulled out, spray into the door very liberally with any general purpose lubricant (WD40, copper lube, graphite spray etc), but choose one with a nozzle that enables you to get into all the nooks and crannies.
The one thing that you don't have is rust!
That page is a nice find Alam, but the entire handle and pull mechanism is made of plastic on the A2!.
Cheers,
Mike