Chery QQ Service Manual 465 Engine Mechanical System
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Chery Automobile Co., Ltd
CHAPTER 16 Cooling System
I Maintenance guide
Drainage and refilling of cooling system
Proportion of ethylene-glycol is definite, so
as to ensure at least 50% of ethylene-glycol
solution being used for all emission ports
and air holes of engine block ,during the
process of coolant drainage and washing.
Volume of cooling system for 1.1 liter
engine is 4.8 -5.0 liter, listed volume during
the procedure of refilling, including extra
amount of atmosphere drained and
remained in cooling system after static
refilling. According to correct filling
proportion and the following procedures, it
will ensure that density of ethylene-glycol is
50% in the cooling system, so as to simplify
the refilling work, see the radiator volume
of static refilling for reference, at least
every 5 years or driving 240000 km , taking
the first arrival for standard, the engine
cooling system should be drained and
refilled with fresh coolant accordingly.
Caution: Make sure that pressure
temperature of cooling system is much
higher than solution boiling point in the
radiator while preventing boiling at the
same time. To avoid the damage of being
burned, do not remove the cap while the
engine and radiator are still hot, because it
will lead the solution boiling and having
explosive force probably, resulting in
solution rejecting to the engine wing and
hurting the user who remove the cap.
Notice
: It must be sure that you should use
regulated coolant, if you don’t use regulated
brand of coolant ,time of replacing the
engine coolant should be shortened ,that is
driving 50000 km or 24 months.
Drainage
Notice
: It is not right to drain the coolant to
the full, unless when you remove the water
pump. You should pay attention that this
procedure will increase the amount of
coolant for diluting the dangerous waste
materials.
1 Keep vehicle level.
2 Remove reservoir tank cap according to
the following procedures after the engine is
cooled. Turn the cap to detent slowly,
anticlockwise. Don’t give the pressure cap
pressure while turning. It will be fizzing
while draining the remaining air, you
should continue to turn the radiator cap
anticlockwise, until you open it.
Notice
: Retrieve and store the old coolant in
the old reservoir tank at regular intervals,
that procedure greatly increase the amount
of coolant for diluting the dangerous waste
materials.
1 Put the drain tray under vehicle to collect
the old coolant.
2 Loosen the outlet hose clamp mounted on
the left side of radiator back, remove outlet
hose of radiator
3 Loosen the hose which coolant tank to
manifold inlet port, remove tank and hose.
It is enough to remove the bottom radiator
pipe and tank hose only if you carry out
drainage partly.
Attention: Make appropriate dispose of old
coolant, don’t put the old coolant into the
sewer. Ethylene-glycol antifreeze is a kind
of extreme poisonous chemical agent. It
is illegal to dispose the ethylene –glycol in