I almost got it off, but its impossible to reach the bottom left 10mm nut with my 1/4 ratchet, theres this big screw with a yellow thing on the end making it difficult to reach, any ideas? really making me angry, stubbed my toe and had to drive around town looking for tools since my dads stuffs scattered all around.

 

taking the tps off is easiest if you take the whole TB off, and work from there.

 

where can i find out how to remove the throttle body.

 

s5 turbo? s4 NA ?

Hmm,
My s5 NA has 3 bolts that are all pretty accessible.

mabye you've got a different model.

I think the yellow cap on that bolt will come off to give you access to the bolt in question. At least that's what IIRC was the case on mine when I took the tps off.
I did not take off the throttle body, but can really see how that would make it easier job.

 

S5 turbo, but i said **** it... i went at the bolt with my hands, and i've ripped off quiite a bit of skin to do it, but it worked. I didn't bother to put in the 3rd bolt again though... just the top bolt and the bottom right one, its just too much trouble. Went out for a test drive and the big left intercooler pipe blew off, and i had to walk home and walk back to bring back my rachet... what a day.

Anyway, replacing the TPS fixed all my problems.