Chery Tiggo 5 (T21). Service manual - part 155

12–

21

12

a. Soak the thermostat in water, heat the water gradually 

and perform inspection.
 Opening temperature of thermostat is 82 ± 2°C.
 Maximum lift of thermostat is no less than 8 mm.
 Temperature is 103 ± 1°C when thermostat opens 

fully.

b. Check that the thermostat closes when temperature is low (5°C lower than the opening temperature).
c. If above conditions are not met, replace the thermostat.

Installation

Installation is in the reverse order of removal.

RT21120140

CAUTION

 As shown in the illustration, align the protrusion (1) of thermostat grommet and groove (2) of thermostat 

seat during installation.

 Check that coolant has been added to the specified level after installation.

RT21120150

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2

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Thermostat Seat

Removal

1. Turn off all the electrical equipment and ignition switch.
2. Disconnect the negative battery cable.
3. Remove the engine trim cover assembly (

See page 10-10

).

4. Remove the air filter assembly and bracket (

See page 10-17

).

5. Remove the ignition coil (

See page 14-10

).

6. Drain the coolant (

See page 12-13

).

7. Remove the thermostat (

See page 12-19

).

8. Remove the thermostat seat.

a. Disconnect the coolant temperature sensor connector 

(arrow).

b. Loosen the elastic clamp (1) and disconnect the 

connection between thermostat seat and engine 
discharge hose.

c. Loosen the elastic clamp (2) and disconnect the 

connection between thermostat seat and heater inlet 
pipe.

d. Loosen the elastic clamp (3) and disconnect the 

connection between oil cooling pipe assembly I and 
thermostat seat.

e. Remove the fixing bolt (1) from engine ground wire, 

and disconnect the engine wire harness.



(Tightening torque: 7 ± 1 N·m)

f. Remove the fixing bolt (2) from engine speed sensor 

bracket.



(Tightening torque: 7 ± 1 N·m)

WARNING

 Always make sure engine is cold before operating cooling system.
 Never open expansion tank cap or remove drain cock plug when engine is operating or cooling system 

overheats. The engine coolant and steam with high-pressure and overheat may flow out and cause 
serious personal injury.

 If your body contacts coolant accidentally, clean it with water immediately. If it is serious, please go to 

hospital.

CAUTION

 Be sure to wear necessary safety equipment to prevent accidents when repairing.
 Try to prevent body paint surface from being scratched during removal and installation.

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3

2

RT21120160

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1

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12

g. Loosen the elastic clamp (arrow) and disconnect the 

connection between small circulation outlet hose and 
thermostat seat.

h. Remove 4 fixing bolts (arrow) from thermostat seat.



(Tightening torque: 8 + 3 N·m)

i. Remove the thermostat seat and thermostat seat gasket.

9. Remove the coolant temperature sensor (arrow) from the 

thermostat seat.



(Tightening torque: 11 - 16 N·m)

RT21120180

RT21120190

RT21120200

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Installation

Installation is in the reverse order of removal.

CAUTION

 Check that coolant has been added to the specified level after installation.
 Replace thermostat seat gasket with a new one during installation, and the removed gasket cannot be 

reused.