Have you checked the fuse.I have a 54 s and mine were seized when i got the car.It had taken the fuse out at some point.Friend replaced the fuse,good squirt wd40 with tube on it poked well inside the casing and bingo.Apparently they are all supposed to have folding i think after 2002.
There there. But maybe like the OP they are stuck. If I apply gentle pressure they move very slightly in. But defo there.
To Brum, if you place the L/R mirror selector switch in its central position, the press the round black mirror angle switch at the 6 o'clock position, you should hear the motors click into life if operational. Trust this helps a little bit.
Need to find technical post on sticking mirror motors now.
No prob Brum. I worked on mine yesterday with a full can of WD40. Passenger side works fine but driver side still lazy. Did notice that the alloy casing the mirrors are made of fur up and do corrode. You will find that while lubing the mirrors and working them back and forth you will get a lot of white alloy deposit that will run out with the casing and down the doors. Best to run warm water down the doors to remove the particles as still harsh on paint work.