So i just bought a S4; the car was repossessed from the previous owner and it was abandoned in a yard for a while after that. This lady has a small fracture in the bottom oil pan so its leaking oil, check engine light is on and although she is not a complete piece of junk, I can tell she wasn't the most taken care of car by the condition of its paint finish and what it seems to be really old motor oil (I had to add some after she got home [Yes it was driven with about 1 quart less of what it needs from the parking lot where it was to my garage D: ]). Since I need to take the oil pan off to have it weld (since i'm not in the condition to get a new one for the moment), and the oil looks really dirty I was thinking on doing an extra oil change on her to drain the first one after a couple of miles to get the dirt out the engine... She has 85000 miles but since i just got her I want to start from 0 with her... Is a motor flush a bad idea or would it be bad for the turbos (honestly i know very little about turbos, and I am not all that knowledgeable about cars, i do what i can). After reading here and there i know i gotta do the timing belt change and the water pump, but besides that what else should I change, replace, or have her looked at?
For now I want to change all the fluids: (Engine oil, antifreeze, gear oil)
I don't know if i should change the power steering fluid as it seems it takes a special mineral kind, and i don't know how to change it.
Besides that i wouldn't mind a list of things i should check, or change .
And if you guys recommend stuff, see if you can find stuff over here: Home Page | O'Reilly Auto Parts since i work in one of these stores hahaha.

Thank you, im looking forward to learning from you all

-K°W'

 

everything in this kit needs to be done:

Audi B5 S4 2.7T > ES#2569854 ECS Tuning Timing Belt Kit - Ultimate Plus With Gates Racing Timing Belt - 078109119JKT3

change all the fluids!! the power steering takes chf-11s. i got mine at O'reillys in orange county.
other things that might need to be looked at or replaced would be the spider hose, diverter valves, boost hoses, vacuum hoses, turbos and hose clamps.

check these guys out for cheap parts:
Audis4parts.com

 

Thank you, very appretiated the information you provided is... I shall look into it (:!

 

check all the mounts, spark plugs, coil packs, and all also drain all fluids and replace with fresh sounds like its been sitting for awhile