I've had a poke around a couple forums and watched countless videos trying to figure this one out.

My A3 8V(tuned with Unitronic stage one TCU and DSG) had this weird squeal from the front of the vehicle when I was trying to have fun in the snow with traction control off(I'll link video of the noise)

Took it to the dealer when I heard the noise as I hooked up my VCDS and had a AWD Mechanical Malfunction (C113 07 [008]) thy said the haldex pump went bad and spent $1300 to flush it and change the pump. worked for a day, and got the same code and took it back, they said they may have forgot to do the readaptation, so they did that and it still seems ok, however, I still have the squeal noise when I break tires free with traction off, worried it may be front diff/bevel box maybe not transferring power properly sending that code.

Figured I would pool some opinions to see if anyone has had this issue to give me some direction instead of letting the dealer decide.

Thanks in advance