Adding late model w123 tachometer (3-pin) to earlier model car

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		PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion
Adding late model w123 tachometer (3-pin) to earlier model car

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12-09-2017, 01:44 AM

240dddd

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Join Date: Aug 2009

Location: Seattle

Posts: 476

Since it is a 3-pin tachometer should I assume that the bottom pin marked with a '+' symbol would be for the 12v power?

Does anyone know what the 'G' pin (middle pin) and 'W' pin (top pin) stand for? Do you think I should be able to run wires from the sensor to these two pins?

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