My 1999 s500 has this very loud whining noise. Like a jet plane.

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the noise is coming from the passenger side underneath more so towards the rear tire. Its very loud and it sounds like a annoying jet sound and it stays on all the time. Actually it's a very Embarrasing sound when stop idling.

thadd in Harrisburg PA

Mar 13, 2012

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What are the best Mercedes-Benz repair shops?

RepairPal Certified shops can diagnose and repair your 1999 Mercedes-Benz S500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

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My 1999 s500 has this very loud whining noise. Like a jet plane.

What is your question?

thadd in Harrisburg PA

Mar 13, 2012

1 Reply

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user91328on Mar 13, 2012

it may be the fuel pump. it may be failing and you need to have it checked. Roy

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Popular Answer

What are the best Mercedes-Benz repair shops?

RepairPal Certified shops can diagnose and repair your 1999 Mercedes-Benz S500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.