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E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

Outside Temperature Sensor Display

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Old 05-04-2011, 02:53 PM   #1
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Outside Temperature Sensor Display

The outside temperature sensor in my 1994 E320 Wagon seems to read about 20 degrees low. Is the sensor bad? If so where is the thing? I have a junk yard up the road I can try and locate another one up there.
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Old 05-04-2011, 04:09 PM   #2
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The sensor is located behind your front license plate. Remove plate, remove plate holder, to the left as viewed from the front.
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Old 05-04-2011, 07:36 PM   #3
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Sensor

Do you think the sensor is bad, or is it something in the ECU?
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Old 05-04-2011, 08:21 PM   #4
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I have not dealt with this issue personally, but I do not see that the ECU is the issue.
The ECU does not care what the outside temp is, only within the engine thus the coolant etc.
I would say it is the sensor.
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Old 05-05-2011, 02:55 PM   #5
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Sensor

A lot of times they will have resistors on the circuit that can go bad over time. I am more suspect of the sensor itself as well.
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04, 94, ambient, display, e320, e350, gauge, location, mercedes, misreading, outside, sensor, temp, temperature, temputre


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