Mercedes s320cdi 2001 lights issues and center dashboard bu

[Magic0x]

Hi I did buy s320cdi 2001 from some carkiller butcher mothxxxxxxxx . In very pure condition . So let's start first car was on emergency mode then die . 3 mechanics try to bring him to live as issue was bubbles air in diesel. After watch those professionals looking on YouTube where is fuel pump and planing strip and take out tank. I say bye. Weeks on YouTube and reading I sort car my self . What I do not know nothing about mechanics. So car drive on full power till get to about 40 degrees of temp engine and switch home mode.
Second lights error is changing from 8 to 6 to 9 to 4 . But all lights working except left parking light and just flashing . The bulb is good as I connect on write side and is ok . In the rear left light was Hal of lamp of water so I cleaned dry check plates but nothing change . And last problem all buttons on the dashboard not working like air sunspencion blind hazard lights and egg plus stering wheel buttons to access to front info . But cruise control working normal . I read its clock spring. So can I restored or I must change? About home mode when is worm I read its turbo boost sensor as she was removed when I took it (one and half hour I look from the picture how its look like
:-€ ) and one more thing I have 3 places fuses right and left under hood. Behind driver seat in passages sit . But I don't have nowhere where I shout have when u open the door on side next to glove box or driver side . So I can't locate fuse from I think number 80- up. Please any info will be great as I m proud from my self that I repaired car without any knowledge. And I strip all computers and clean them as I read could be water damage . So that for help