A3 8p tfsi quattro rattle clicking on acceleration in 3rd 4.5k
 

Alrite guys long time lurker first time poster. So ive a a3 8p quattro sport 2.0tfsi havin problems recently with a grinding rotating clicking sort of noise threw the car at 3.5k 4.k in 3rd gear sometime 4th and vibrations while just driving normally. Pretty sure its propshaft haldex related car fine in 1st and 2nd gear tho can feel vibration threw car . Scaned the vcds code i got was 01324 haldex controler . Tho i havent lost my 4wd .code refairs to a bad earth , connectors or unit tho this wouldn't explain my vibrations ive checked all above and seem ok dont want to replace controller without know for sure swaying toward donuts on propshaft tho again this wouldnt bring up the fault code?
Mods k03 hybrid fmic 3inch turbo back vis fuel pump ram induction kit gfb dv