Coolant level sensor wiring - Mercedes Benz SLK Forum

SLK R170 General Discussion SLK 200, SLK 230K, SLK 320, SLK32 AMG

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#1 Old 03-20-2017
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Vehicle: SLK R170, 230 Automatic. 1997, German spec.
Other Toys: Honda 1100XX Blackbird.
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Coolant level sensor wiring


One more about the coolant warning light.
My light is on for a week now. Coolant level is at max and the wiper fluid full.
Checked the 12V (2x on the large pin and 1x on the smaler pin) on the control module and hot-wired the cooling fan. All normal, light still on.
Now I saw that some idiot disconnected the wiring from the coolant level sensor and twisted it together!!
Is the circuit, for normal level, open or closed?

GRZ Eric.
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