Hey guys

Currently in europe and bought my self a passat.

Everything seems ok mechanicaly except when i start my engine with ac on, the compressor makes a very very loud sqweel of a noise but if i put up the revs it goes away and ac working normal, so i was wondering is this a bearing issue or a compressor issue, as one is cheap and the other is not, once revs are up all is well but if i start the car with AC on the noise unbearable.

Any help much appreciated.