c300 2010 making a whining noise simular to a power steering pump whine...what can it be?
Asked by dhatfield53 Jan 01, 2015 at 10:43 AM about the 2010 Mercedes-Benz C-Class C 300 Sport 4MATIC
Question type: Maintenance & Repair
2 Answers
mikeatpriestlake answered 9 years ago
It could be any of the pulleys that the belt drives. ac, idler, tensioner, water pump, alternator etc.
I recently had the exact problem - I thought it was the power steering pump. Took it to Mercedes. Turned out it was a high pressure line or fitting. Sorry I don't remember which one it was. I think it was one of the air pumps.
4 people found this helpful.