Why does my powersteering whine when it's cold outside? on 2004 Audi A4 Quattro

There's plenty of fluid in it. When it's warm outside there's no problem.

Asked by for the 2004 Audi A4 Quattro
fluid may be degraded and needs flushing. try that 1st it may help.
Ok. Thank you.
1 more answer , 1 more comment
CORRECT fluid in it?