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Transmission Oil Temperature Sensor, Component Description - GF27.19-D-4019H

Transmission 722.6 in MODEL 906.111/113/131/133/135/153/155/211/213/231/233/235/253/255/611/613/631/633/635/637/653/655/657/711/713/731/733/735 

G10885782Courtesy of MERCEDES-BENZ USA

Location 

The transmission oil temperature sensor is located in the electric control unit and is rigidly connected to the conductor tracks.

Task 

Measures the temperature of the transmission oil and passes the temperature to the ETC control unit (N15/3) as an input signal.

Design 

The transmission oil temperature sensor consists of a temperature-dependent resistor with a positive temperature coefficient (PTC).

G10885783Courtesy of MERCEDES-BENZ USA

Function 

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.

The transmission oil temperature sensor is connected in series with the starter lockout contact (Y3/6s1). The temperature signal is only conveyed to the ETC [EGS] control unit when the dry-reed contact of the starter lockout contact is closed.