So i managed to add a new k03s to my 99 Audi A4, and let me say those german engineers made that job soooo un frustrating lol *cough* but anyways, i managed to change the turbo/ get the freaking 80 dollars worth of gaskets/screws/little bit of collant <autohaus theives> and complkete it with 7 hours, not bad for my first car job <18 years old>.... very pleased with the outcome, but i think i fried a coil pack??, it "jerks/rocks" under heavy acceloration, will get the codes read tommarrow......... also should i be changing any software going from a k03 to a k03s?????

 

Good job! Recheck any electical connections that were disconnecting regarding the jerking. MAF, N75,(ICM if youare 97-99)etc. If its a bad coil back or ignition related, your CEL would be flashing. Unlikely its a coil pack though. Those should not have been touched. Is your CEL flashing at all?

 

no sw change is needed.

 

well the CEL stays on , i need it read, but i didnt happen to notice it flashing

 

also! i would like to add that its no longer in Limp mode, it reset itself thank god

 

check all your lines and wires one more time.

 

Gratz on that it can be very Daunting to do.
Im on my 3rd turbo so I feel your pain after the second one I didnt even have to do this
Should have gone with K04 though