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Dan
Dan, Technician
Category: Mercedes
Satisfied Customers: 23939
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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I have a 2001 s500 and it has started making a loud whining

Customer Question

I have a 2001 s500 and it has started making a loud whining sound. Gets louder as the rpm increase.
Submitted: 11 months ago.
Category: Mercedes
Expert:  Dan replied 11 months ago.

Hello, my my name is***** sounds like you have a worn drive belt. You can spray drive belt with water to see if noise stops, if so you know it needs to be replaced. Belt would cost around $100 to be replaced at a shop, here are replacement instructions. Let me know if you have questions, thanks.

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https://www.dropbox.com/s/s8yo7fkgxqiyes4/dn3.pdf?dl=0

Customer: replied 11 months ago.
Makes same noise with the belt off and car running
Expert:  Dan replied 11 months ago.

How does vehicle run? Is check engine light on? Thanks.

Customer: replied 11 months ago.
Car runs perfect no check engine lights.
Expert:  Dan replied 11 months ago.

I'll open question back up to see if someone else has some ideas. Thanks.

Customer: replied 11 months ago.
Thanks