My wiper mechanism is needing replacement and I stumbled upon a NEAT feature of at least a W126 Mercedes...

There are "release levers" on the hood hinges, which when released, will allow the hood to open to a straight up vertical position - then you can more easily service items at the base of the windshield like the wiper mechanism...

W123, W126...
https://www.youtube.com/watch?v=lRRx98t4jjk

W124...
https://www.youtube.com/watch?v=c8z2_e1OCbI