Chery A15. Manual — part 20

THERMOSTAT

Disassembly:

——To unscrew 3 M6×40 bolts and then demount the

bolts;

——To demount thermostat chassis and thermostat

assembly.

——To pry out the spring clamps by using chisel or

screwdriver.

——To take the thermostat out;

——To clean up the thermostat;

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——To take the seal ring out, and replace it if it being

worn and torn.

——To demount the gasket from the thermostat chassis.

（

To replace with new gasket if it is worn and

torn, and allow no repeated use.）

——To measure the thermostat opening temperature

under hot water.

Assembly:

——To clamp the thermostat and then put the gasket

into the thermostat aperture.

——To install thermostat (the side with spring facing

outward).

——To embed spring clamp to ensure the clip within

the thermostat chassis slot;

——To mount new gasket onto thermostat chassis;

——To mount the thermostat chassis and thermostat

assembly into the aperture at the rear side of engine
cylinder head, and screw up the bolt by hand to
9—12N.m.

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WATER TEMPERATURE SENSOR

Disassembly:
——To demount water temperature sensor (at the

exhaust pipe flank and under the lifting eye).

Assembly:
——To apply Letai 243 glue on the screw thread,

screw up the bolt to 7.0—10.0Nm before
installation.

Checking:

Water temperature sensor is a negative temperature coefficient sensor, which is composed of

a thermal resistor. The resistance value of the resistor shall decrease as the engine temperature
rises. The variation is detailed in the following table:

Temperature (°C)

Resistance Value (Ω)

-20 29,125

-10 16,660

0 9,790

+20 3,748

+25 3,000

+60 747

+80 377

+100 204

+120 117

COOLING FAN

Disassembly:

——To disconnect the negative terminal of battery;

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——To demount the matching plug of the cooling fan.

——To remove the fastening self-tapping screw from

the cooling fan.

——To take the cooling fan out.

Assembly:

——To assemble the cooling fan according to the

disassembly order (the tightening torque of
self-tapping screw is 1.8~2.2Nm)

——To start up the engine and check if the cooling fan

is under normal operation.

Guideline For Disassembly:

——During the disassembly process, you should pay

more attention not to pull A/C pipe to a large extent,
otherwise the A/C pipe shall crack and deform.

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