Dracula

Hello i purchased a 2001 ml55 with 125000in Dec 2020, im looking to see if im missing any fuse or relay for the headlights. Fog lights, high beams and blinkers all work, if itd be worth it to install new ones id take and recommendation. Also ive had issues with the drivers side windows they both have been less than functional intermittently. I havent invested any money into it and bought it because the gentleman came down to my price only 3 months ago i put a battery and insured it for the road but over this year would like to put money in and fix it up so would take any recommendations on items that i should consider, i got a pre purchase inspection from Mercedes so i have that as well. Thank you for your time