Dsg DQ250 Whine from 1000-2000 rpm

It's a mk 2 octavia CEGA Tdi from 2008 Prfl with DSG, After a hard acceleration the gearbox started making an akword noise ... it's like a whining ....

It starts from 1k rpm to 2k rpm , after 2 days even in Reverse it makes the same whining noise

Clutches don't slip , Gearchanges are ok , The flywheel was changed last year , oil and filter replaced

wheel bearings ar all ok , no problems at the driveshafts , no oil leaking from the gearbox .

Could it be some bearing from the gearbox giving up ?

Thanx