Chery QQ - Page 215

Chery QQ Service Manual Chassis System
Step Operation Normal outcome Abnormal outcome
1 Check the liquid level of
the brake liquid inside
the oil storage tank
At normal height Too low
2  Turn off the ignition
switch
 Make sure the static
brake is loose
 Activate the engine
 The alarming indicating
light is on when the engine is
activated.
 The light is on when the
engine is activated, but it
goes off after the engine is
started.
 The light is not on when the
engine is activated.
 The light is on after the
engine is started.
3 Step the brake pedal to
the extreme
 The pedal moves stably
toward the floor.
 The pedal stops and resists
the pressure.
 The pedal moves unsteadily;
 The pedal is too soft or too
close to the floor.
4 Release the brake pedal The pedal returns to its
original position.
The pedal fails to return to
the original position.
5 Test the hydraulic brake
system
 The braking action is
immediately operated when the
pedal is stepped.
 The operation of the brake
is smooth and normal without
any blocks and vibration of
the pedal.
 The steering wheel and the
brake pedal do not vibrate
when the pedal is stepped.
 The car stops without using
too much force in stepping the
pedal.
 The car moves steadily
forward during braking
operation.
 The front and rear brakes
work simultaneously.
 The brake does not have much
operational noise.
 The brake does not delay in
reset after the pedal is
released.
 The braking action delays
after the pedal is stepped.
 The brake works roughly when
the pedal is gently stepped.
 The steering wheel or the
brake pedal vibrates when the
pedal is stepped.
 It is hard to step the pedal
and to stop the car movement.
 The car moves toward one side
when the brake is applied.
 The front brake and the rear
brake work unevenly.
 There is much operational
noise of the brake.
 The brake delays to return to
the original position, after
the pedal is released.
To verify the outcome of the tests, make comparisons between the verified
outcomes with those of the car/system of the same model in operation.
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Chery Automobile Co., Ltd