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Home >> Mercedes Benz >> 2001 >> ML320 >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Complete Transmission - Ml320 - 722.662 >> Complete Transmission >> Survey Of System Components, Automatic Transmission, Location/Task/Design/Function (With Touch Shift) >> Temperature Sensor, Location/Task/Design/Function >> Temperature Sensor, Function

Temperature Sensor, Function

Fig 1: Temperature Sensor, Function
G00387051Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Operation 

The temperature of the transmission oil has a major influence on the shift time and thus on the shift quality. It is possible to optimize the gear shifts in all temperature ranges by detecting the oil temperature. See Fig 1.

The transmission oil temperature sensor (Y3/6b1) is connected in series with the starter lockout contact (Y3/6s1). The temperature signal is transmitted to the ETC control module (N15/3) only the dry-reed contact of the starter lockout contact (Y3/6s1) is closed.

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