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1992 Mercedes-Benz 300E Question: engine coolant light always on, normal running temp on gauge and fluids ok

 

Question

Visitor, San Diego, CA, January 11, 2011, 11:47

Is it a faulty sensor?

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  • Answer #1

    verdigo from SCE Small Car Enterprises, January 11, 2011, 12:22
     Enthusiast

    Probably the coolant level sensor. Located in the expansion tank. A new sensor is around $30.00 and not too hard to change. If you simply unplug the sensor the light should go out. Otherwise there may be a short to ground further up the wire harness.

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    Visitor, January 11, 2011, 15:23

    You were spot on as well as Answer #2. Thanks again from Enthusiast in San Diego..

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  • Answer #2

    AutoMedic from Bradenton Auto Center, January 11, 2011, 13:00
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     Technician

    it can be the sensor in your cooling tank that is not reading right.

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