C250 1996 Automatic Transmission Oil Change

I have bought a new filter for an oil change - possibly the first after nearly 190,000 kms. No guidance in workshop manual but presume should be
straight forward ie Remove dipstick, drain oil, install new flat filter unit and top up with 5.5 litres of new oil through dip stick tube. Any tips regarding procedure and best oil grade etc. I understand automatics do benefit from fresh oil every now and then. Thanks
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.