The steering column does not slide inside the engine compartment.I know the ones inside the cabin slide. The ones in the engine bay slide freely too (without unbolting the column from the dash)?
Understood. That does not collapse. I was assuming by your post you were trying to gain some clearance to install and remove the shaft from the EPAS. There is a similar section inside the car that does collapse. You can leave the shaft in your picture connected at firewall u-joint then loosen the nuts inside the car, collapse the inside shaft a couple inches to get clearance to disconnect or reconnect to the EPAS.