Chery T21 2014 Service Manual page 624

12 - SQR484F COOLING SYSTEM
4. Pressurize the cooling system to 1.3 ± 0.2 bar with the cooling system pressure tester, and then observe
the pressure changes. If the system pressure does not drop within 2 minutes, it indicates there is no
leakage in the system. If the pressure changes greatly, it indicates that there is a leakage in the system;
find the leaking area and perform troubleshooting.
Coolant Concentration Test
CAUTION
 DO NOT mix different colors or types of coolant.
 Please select coolant which is suitable for local climate in different areas.
 Please read measured value at the scale line. In order to distinguish the scale line more clearly, drip a
drop of water on the glass of freezing point tester with a pipette, then the scale line can be clearly
distinguished via a "waterline".
Test Procedures
1. As shown in the illustration, drip a drop of coolant on the
glass of freezing point tester with a pipette, and then
observe the freezing point value of coolant.
12
2. As shown in the illustration, observe the scale 3 of
freezing point tester to read the ethylene glycol coolant
freezing point value. The freezing point value must be
kept at -35°C or lower.
If the freezing point is beyond the specified value, replace the coolant.
HINT:
Scale 1 is used to measure the freezing point value of propylene glycol coolant, and scale 2 is used to
measure the battery electrolyte concentration.
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12–
ETHYLENE
PROPYLENE GLYCOL
GLYCOL
-50
2
1.40
-50
1.35
-40
-40
1
1.30
-30
-30
1.25
-20
-20 1.20
1.15
-10 -10
BATTERY
ELECTROLYTE
1.10
d 20
20
0( C) 0( C)
O O
WATERLINE
ANTIFREEZE
Chery Automobile Co., Ltd.
RT21120050
3
RT21120060