shark27a

Hello there, I had this headche tranny problem since i got the car few monthes ago: car drives fine until engine warmed up(coolant temp at 90c),tranny feels like start to slip and harish shift. If push to manual mod, you will see it shift back and forward between 2nd and 3rd, and latter it goes into fail-safe.
Of course,ATF is dirty like hell, so i drop and cleaned pan, changed ATF twice(drian and fill, our ATF flush machine does not have audi fittings,unlucky),but problem still there.
Have auto-enginuty pull out DTCs from tcm, code:17087,17116,17114.According to evry limited information from Alldata, i was suspected the transmission speed sensor failed. After perfromed a solenoid audioble test(fully warmed up), i am confused: shift solenoid #1 #2 #3 and shift lock sounds good, pressure control solenoid#1 sounds slow,and heard nothing from p/c solenoid #2 #3 #4 and #5.
There also a possiblility problem with auto-enginuty, the test always quit at middle, have to try so many times to run through the solenoid audioble test.
Is it common for those P/C solenoids have problem on 01L tranny?

Any body have diagnosed and fixed this problem before? BTW, this car also have ABS control module and Airbag module lost communication(wont communicate with any scaner),plus a busted fan clutch(causing over heating problem?)