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Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53150
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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Mercedes 2003 s600 cooling fan not working?

Customer Question

Mercedes 2003 s600 cooling fan not working?
Submitted: 1 year ago.
Category: Mercedes
Expert:  Marty replied 1 year ago.
Hi, my name is***** have 4 wires going to your cooling fan module on the fan shroud. You should measure 12 volts from the large brown wire to the large black wire. You should also measure 12 volts from the large brown wire to the small red/green wire with the key on. Fuse 30 in the passenger side fuse box under the hood powers the red/green wire. If you have your voltages to the module and the fan does not turn on you will need to replace the cooling fan assembly.
Let me know if you have any questions.
Marty

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