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Old 07-17-2017, 02:52 PM
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Question 97 S420 - coolant sensor location(s)?

I have a 1997 S420 - I ordered a new coolant sensor (just as a precautionary measure) - but it's a single pin. the one on top of the intake manifold is four pin connector - am I missing something? or do I just have the wrong part? Maybe there are two?

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Old 07-17-2017, 03:15 PM
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Low coolant and Coolant temp TWO
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Old 07-17-2017, 07:54 PM
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Single pin is coolant sender for the temp gauge.
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Old 07-18-2017, 09:17 AM
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I do not think in '97 there are two anymore. I think it is just the single 4 pin one. ME reads the sensor and sends over CAN to other modules.

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