I am hearing a loud whirring noise all of the sudden. Could it be wheel bearing? on 2002 Mercedes-Benz ML320

Car has 175,000. No other problems noticed. Check engine light is on but has been on due to replacement of gas cap.

Asked by for the 2002 Mercedes-Benz ML320
if the check engine light is on you will need to check for codes as far as the noise you getting does it only do it while your driving