You could see if Haynes do a manual for your cars year (they probably don't , your cars engine may be very new )any suggestions as to a diy manual for my Merc
The drivers manual is rather basic
Driving under a flatbed Lorry at speed will do that , just remember to duckHello and welcome
By your thread title I thought you were wanting to make a cabriolet from an E220...
Now that would be a “DIY”