Description and principle of operation of the gearbox cooling

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Lubricants, fluids, sealants and adhesives


PositionSpecification
Transmission fluid for automatic transmissionWSS-M2C202-B

Torque specification


NameNmlb-ftlb-in
Transmission fluid cooler supply and return lines2518


Cooling of the gearbox in the block with the drive axle


CAUTION: Do not repair leaks by tightening more than specified.


General form




Pos.Spare Part NoName
1Return pipeline
2Supply pipeline
3transmission fluid cooler


The transmission fluid cooler is installed in front of the engine cooling radiator.



Vehicles with air conditioning


Remove the air conditioning condenser before removing the transmission fluid cooler.

Control lamp of the power unit




Location


The control lamp of the power unit is located on the instrument panel. This is an orange lamp.


Purpose


It warns the driver that the transmission control has switched to an emergency operating program or that the transmission fluid temperature is too high.

Transmission fluid temperature sensor (TFT)


Transmission fluid temperature sensor (TFT) located on the internal wiring harness in the oil sump. This is an NTXC resistor (with negative temperature coefficient). The sensor measures the temperature of the transmission fluid.

If the transmission fluid temperature is very high (>135°С), the transmission warning lamp comes on, and a fault code is stored in the memory indicating that the transmission is not functioning properly.

In low temperature conditions with transmission fluid temperature in the range of 0°C - 40°C, there is no lock function.







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