Never had a C8 but the AM6 on the C5 comes out without too much difficulty, as many on here know I bought my C5 with the gearbox gone awol , found a second hand box and fitted it myself, easier than a manual box.
One warning the box weighs in at 93Kg so you need some muscle to move it around.
Anyone who has never made a mistake has never tried anything new. (Albert Einstein)
There's a lot more room in a C5 than a C8 engine bay and consequently the C5 official guide does not require the engine out to replace the AM6 Eric, so that's probably why.
Please note, I'm no longer active on the Forum, so won't respond to messages.
While the C8 appears to be a larger vehicle it is a people carrier (rather than a car) so more space is given over to the cabin. This obviously means that there is less space elsewhere (including the engine bay).
James ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
ex C5 2.0HDi VTR
ex C5 2.0HDi VTR
ex C5 2.2HDi VTX+
Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!