Okay....so what I can glean from the manual ....
MAF is main instrument, hower SRT/SLK32's have a MAP as well which also inputs to the PCM (Power Control Module). It doesnt say exactly - but I'm assuming the MAP is post compressor taking from the plenums or somewhere.

To investigate - it says I need to remove a couple of items MAF and Plenums.
This would simply be for a MAF clean and curious inspection - so .....
Should I have seal ring and gaskets at the ready "in case they get damaged", or "yes - you will need them - they are one use only items and will get be cactus".

Its a shame the manual simply says - "inpsect and replace if necessary" for a majority of items rather than giving inspection and test procedures.