Chery A15. Manual - part 19

PARAMETER OF COOLING SYSTEM

 

Cooling system 

Parameter 
Total system capacity（L） 8 
Engine capacity（L） 3.3 
Radiator capacity（L） 2.1 

Coolant capacity 

Expansion reservoir capacity（L） 0.4 
Diameter: 280mm 
Number of blades: 6 
Operating voltage: 9-15V 
Rotating speed Ι gear: high-speed engine 2000±200         

low-speed engine 1800±200 

Fan  

Rotating speed II gear: high-speed engine    2800±200     

low-speed engine  2600±200 

Diameter of impeller: ф72mm 
Transmission rate: 1.053:1 

Water pump 

Opening pressure of the pressure cap: 160kPa 
Front face area: 0.202m² 

Radiator  

Heat abstraction area:    8.93m² 
Opening temperature: 85º-89º 

Thermostat  

Full opening temperature: 99º-102º 
Switch-on temperature   gear95 Cº     gear 102 Cº

Ⅰ

Ⅱ

 

Switch-off temperature   

gear≤84 Cº    gear≤91 Cº

Ⅰ

Ⅱ

 

Thermo-switch 

Operating voltage: 12V 

 

 

ENGINE COOLANT 

Coolant Discharge: 

――To demount the pressure cap of expansion 

reservoir; 

――To install a vessel under the radiator, demount 

the radiator outlet hose under the radiator and 
discharge the coolant.

 

Cooling System Cleaning: 

――To discharge coolant, mount the radiator outlet 

hose; 

――To inject clean water up to the position of the 

largest water surface of the expansion reservoir 
from the expansion reservoir filler, and then close 
the pressure cap;   

――To start up engine to make it operate at idle speed, 

 
 

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preheat up to normal operating temperature, shut 
down and cool down;   

――To discharge coolant; 

――To repeat the above-mentioned steps until the 

discharged water is the same as the clean water; 

――To clean the cooling system according to the 

following methods if the coolant is not correctly 
used and replaced to meet the requirements in the 
former utilization:   

a.   To discharge coolant; 
b.  To demount the radiator inlet hose, insert the main 

water hose into the radiator filler until the outlet 
water becomes clean; 

c.   In order to flush out the engine, you should connect 

the main water hose with the water outlet of the 
thermostat to clean the engine until the discharged 
water flowing from the water pump inlet becomes 
clean; 

d. 

  To repeat cleaning operations if the radiator is very 

dirty, and connect the main water hose with the 
radiator water outlet until the water flowing from 
the radiator water outlet becomes clean. 

 

Coolant Filling: 
――To check whether the pipeline is well connected 

and fastened before injecting coolant; 

――To open the pressure cap; fill up coolant into the 

expansion reservoir filler slowly. Since the 
expansion reservoir is at the highest position in the 
cooling system. Therefore, as the coolant level 
rises, the air in the system shall be discharged into 
the expansion reservoir and shall be discharged out 
of the expansion reservoir by injecting coolant 
slowly.  

――To continuously inject coolant up to the highest 

coolant level. And then close the filler to prevent 
coolant from spilling.   

――To start up the engine to make it operate at idle 

speed and preheat up to normal operating 
temperature. And until the fan begins to run, 
observe water thermometer and check if the engine 
is at overheating condition. If the coolant level in 

 
 

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the expansion reservoir descends quickly, coolant 
should be injected up to the highest position to cut 
down the air circulation in the system.   

――To shut the engine down to have it fully cooled（if 

possible, leave the engine alone for one night.）; 

――To open the pressure cap to check the coolant level, and 

inject coolant up to the highest position.   

 
Cooling System Checkup: 
――To check the coolant level, start up the engine and 

preheat it. Put the engine under idle speed 
circumstance until the cooling fan runs, and check 
if coolant leakage exists at various pipe joints. Shut 
down the engine and wait for engine cooling. And 
then check if the coolant level in the expansion 
reservoir is at normal condition.   

――To try best to prevent the coolant spilling from 

scalding operator during checkup.   

――To timely check if water flows into the engine oil 

pan (the lubricating oil shall become milk white 
after water flows) when no pipe leakage is found 
and the expansion reservoir is short of coolant, and 
timely stop water from flowing in when finding it.

 

COOLING SYSTEM MAINTENANCE WARNING

Warning: 

·To try best not to move radiator cap or loose the radiator discharging plug when the engine 

is under operation or the engine and radiator are at a very high temperature. Scorching 
coolant may spill out, hurting the people and damaging the engine and cooling system.   

·To shut down the engine until it cools down, and then carefully demount the radiator cap. 

Meanwhile, wrap a large thick cloth onto the radiator cap, rotate it slowly to the position 
of the first clip along the counter-clockwise direction and then release the pressure slowly. 

·To use a cloth to push down the radiator cap, rotate and remove the radiator cap after the 

operator ensures all the intensity of pressure has been released. 

 

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WATER PUMP 

Structure:

 

1—Water pump housing   

2—Water pump impeller 

3—Water pump gear 

4—Water pump shaft bearing   

5—Water pump seal (ceramics-lead) 

 

 
 

Disassembly: 

——To disconnect the negative terminal of battery;   

——To discharge engine coolant (refer to the coolant 

discharge process); 

——To disconnect poly V-belt and power pump belt; 

——To demount timing shield;   

——To unscrew and take 4 bolts out of the front side of 

cylinder block.   

——To demount the water pump assembly;   

——To demount the water pump gasket. 

 

 

 
 

 Assembly: 

——To install the new gasket on the water pump;   

——To install the water pump assembly in the cylinder 

block and screw up 4 fixing bolts by hand, and 
then screw up to 7.0—10.0Nm; 

——The water pump impeller installed in the cylinder 

block should be able to rotate freely; 

——To refill engine coolant;   

——To check leakage occurrences of engine coolant.   

Note: Because water pump assembly can not be 
repaired, it should be replaced when seal ring or bearing 
is worn and torn. 

 

 
 

Gasket 

Tightening Torque

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