Miele C2 Complete PowerLine vacuum cleaner

Similar to: www.miele.co.uk/e/cylinder-vacuum-cleaner-compact-c2-powerline-sdrf4-10931670-p but slightly different from image. Indistinguishable from: www.currys.co.uk/gbuk/home-appliances/floorcare/vacuum-cleaners/miele-complete-c2-pure-power-powerline-cylinder-vacuum-cleaner-graphite-grey-10208570-pdt.html

Power symbol meanings: images-eu.ssl-images-amazon.com/images/I/A14OZ5TuwGS.pdf

2020-12: buying Miele SF AP 50 AirClean Plus filter www.miele.co.uk/e/airclean-plus-filter-sf-ap-50-10107860-p. Once it arrived, changed the filter, which fit comes with plastic casing and accordion shaped filter. Also changed bag. But the bag full meter still goes to red on carpet even with everything new while vacuuming. Is it supposed to be checked while not vacuuming?