2-9 c. Check levels of braking fluid, engine coolant, engine oil, transmission oil, power steering fluid, and
washing fluid to see if there is any leaking.
d. Inspect if brake pedal, clutch pedal, accelerator pedal, transmission shifter, steering wheel, choke are
loose or stuck. The free travel of clutch pedal is 5~15mm, the free travel of brake pedal is 1~6mm and
the free play of steering wheel is less than 30mm(measurement point at margin of steering wheel). if it
is out of this normal range, the clutch needs to be tuned.
e. Inspect if the connection of battery, lamps and signal lights are normal, and if the wire routing and
position are correct and not loose.
f. Inspect if the tire pressure is correct.
(2) On-road inspection If the inspection result of the above items is good, start the engine and test the car on
road, and perform the following inspections.
a. Acceleration pedal, see if the operation is smooth and if it is loose.
b. Clutch, see if there is any stuck or abnormal noise, and slip when driving.
c. Transmission,check if shifting is smooth,or rough and wrong shifting.Inspect if the display of A/T
shift lever is normal.
d. Steering, check if steering is light and smooth, and if the steering wheel turns back after steering.
e. Brake pedal, apply brake pedal to check if the braking functions well when vehicle speed is at
40km/h and if the vehicle runs off track.
f. Park brake, when parking brake handler is pulled, there should be 6~9 clicking sounds. Pull park brake
when vehicle is running at the speed of 20km/h and transmission is at neutral gear to see if it brakes.
g. Vehicle speed meter, observe the vehicle speed meter while driving. When speed changes, check if the
indicator is moving steadily or shakes.
h. Heating and air-conditioning.Try every control button to see if both heating and cooling system work
well.
i. Abnormal noise, listen carefully to see if there is any abnormal noise from engine, drive line system or
any other parts of the vehicle at a steady speed and during accelerating, and decelerating.
(3) Inspection after test ride check if there is anything abnormal in the vehicle while driving and conduct the
following inspections after the vehicle is parked.
a. Check electrical fan When engine coolant temperature is beyond 92.5°C, the radiator fan should be
running; When A/C is on and the pressure of refrigerant is more than 1.5 cooling ton, air conditioning
cooling fan should be running.
b. Check headlamp, method: park the car 5m away from the inspection surface (inspection board, curtain,
or wall) to the front bumper, and check if the beam from headlamp is good. The upper level if headlamp
should be 540mm above the ground, and the distance between headlamps on the two sides is 900mm.
c. Inspect engine idle speed,idle speed of hot engine is 800r/min±50r/min,when A/C compressor works,
the idle speed should be 900r/min±50r/min. If idle speed is abnormal, adjust the idle speed adjust
ment screw to adjust it.
(4) Usage of new cars in breaking-in period Follow the instructions below in the first 1500~2500km breaking
mileage to avoid wear and abnormal damage in breaking-in period, and to improve vehicle performance, fuel
economy and to extend vehicle useful life.
a. Drive steadily during breaking-in; do not accelerate harshly to avoid running engine at high speed.
Engine should not exceed 4500r/min in any gears. Especially at the early stage of breaking-in, vehicleUsage and Maintenance of MK Series - Usage of MK Series
2-12Section 2 Maintenance Category and Content of MK SedanAs the vehicle is being used, its technical performance changes as the mileage accumulates and being affected by
various factors, which results in decrease of power, fuel economy, safety, and increase of emission pollutions,
noise and incidents. So timely maintenance during vehicle usage eliminates potential risks and prevents incidents
from happening, improves vehicle integrity and technical functionality, and prolongs useful life of the vehicle.
According to the vehicle technical requirements and usage history, maintenance of freedom Cruiser sedan can be
classified into several categories.I. first time maintenanceFirst time maintenance is also called breaking-in maintenance. It is performed when the vehicle mileage has
accumulated to 1500~2500km in breaking-in period. First time maintenance must be conducted at the appointed
service shops. It includes:
1. Check if there is any leak in engine, transmission, and differential. Fix if there is any.
2. Replace engine oil filter, engine oil and ATF for A/T.
3. Check the level of engine coolant, braking fluid, windshield washing fluid, power steering fluid and if there
is any leak. Refill if the level is too low and repair if there is any leak.
4. Check if there is any damage in triangle arm and ball joint, connection ball joint, triangle arm flexible hinge,
or the ball joint is loose. If there is, fix or replace it.
5. Check if the drive shaft dust cover is damaged. If there is, replace it.
6. Check if there is any leak in steering mechanism, or front and rear absorber and fix it there is any.
7. Check the tire pressure, front 230kpa, and rear 210kpa.II. Regular maintenanceAfter first time maintenance, the vehicle is in regular usage life. During regular use, the vehicle needs to be
maintained regularly according to the way it is used in.
1.Regular maintenance for vehicles used under extreme bad conditions. Any of the condition below is defined
as extreme bad condition:
(1) Frequent start.
(2) Often drive the vehicle in dusty circumstances.
(3) Drive the vehicle in hot areas (such as in summer in the south).
(4) Often drive in cold areas (often runs short trips, engine temperate cannot reach regular work temperature).
Vehicles ran under extreme bad conditions need to be maintained every 5000km.
2. Regular maintenance for vehicles Vehicles that have not been through extreme bad conditions need to be
maintained every 7500km.
Regular maintenance is required to be performed at Geely service shop, too.
List of parts that need to be replaced regularly is in table 1.
Maintenance timetable is in table2.III. Geely maintenance programGeely recommends following Geely maintenance program.
The intervals of maintenance schedules are determined by mileage meter or time periods. Maintain the vehicle
when either meets the schedule. For details, please refer to the schedule.Usage and Maintenance of MK Series - Maintenance Category and Content of MK Sedan
2-14
V. Table 1 List of parts to be replaced regularlyThe intervals in the part list are for cars driven under normal condition. If the car is driven in special circumstances,
the replacement can be advanced from the schedule above.SystemParts need to be replaced regularly
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22Brake master cylinder cup valve and dust coverBrake master cylinder cup
Brake hose
Brake caliper valve
Brake booster rubber
Brake booster vacuum hose
Brake fluid
MT Transmission oil
AT Transmission oil
Steering fluid
Air Cleaner
Air c leaner f ilter
Lubricant
Oil filter
Fuel filter
Coolant
All hoses
Canister
Timing beltWedge belt (including the power steering pump,
air conditioner compressor and generator belts)PCV system
Spark plugEvery 2 years (or as required)
Every 2 years (or as required)
Every 2 years (or as required)
Every 4 years (or as required)
Every 2 years (or as required)
Every 4 years (or as required)
Every 2 years,or 40000km (or as required)
Every 2 years,or 40000km (or as required)
Every 2 years,or 40000km (or as required)
Every 2 years,or 40000km (or as required)
To be cleaned every 10,000km and changed
every 30,000km (or as required)
First 2500km or 2 months. Every 7500km or
6 months afterward (or as required)
First 2500km or 2 months. Every 7500km or
6 months afterward (or as required)
Every 5000km (or as required)
Every 40000km (or as required)
Every year (or as required)
Every 2 years (or as required)
Every 60000km (or as required)
Every 120000km (or as required)
Every 50000km (or as required)
Every 20000km or 12 months (or as required)
Every 20000km (or as required)Intervals
DrivelineSteering SystemBraking
SystemEngineA/C System
(API) SG or above(Table 1)Usage and Maintenance of MK Series - Maintenance Category and Content of MK Sedan
Part III EngineChpater 1 Engine AssemblyInformation about engine accessories in MK-1 Car Maintenance Manual deals with only that concerned with a
complete car. Please refer to separated Maintenance Manual for information about the engine body. Engines
concerned are MR479Q, MR479QA and MR481QA.Section 1 Engine Inspection1. Check the engine oil
(1) Check the oil level.
(2) Start the engine, and reach warm-up temperature.
(3) Shut the engine down, wait for 3-5min, and check the oil level.
(4) Check whether the oil level is in within the range marked by the scale; if it is lower than the limit (mark
L), fill oil to mark F.
(5) Keep the oil clean without any coolant or petrol mixed in and with appropriate viscosity.
2. Change oil.
(1) Start the engine. When normal temperature is reached, shut down the engine.
(2) Open the oil cap, remove the oil drain plug, and drain the oil.
(3) Tighten the oil drain plug to a specified torque 54N.m.
(4) Fill fresh oil into the crank case with oil quantity 2.8L in case of the filter not changed, 3.0L in case of the
filter changed and 3.5L in case of the dry filter.
(5) Fit on the oil filling cap.
(6) Start the engine.
(7) Shut down the engine and check the oil quantity, and fill oil to the mark F on the oil scale if necessary.
3. Replace the oil filter.
(1) Remove the oil filter.
(2) Before mounting the oil filter, apply a small quantity of engine oil to the O-ring of the new oil filter.
(3) Tight the oil filter to a specified torque (12.7N.m).
(4) Start the engine, and check whether there is any leakage
(5) Shut down the engine, check the oil quantity and fill as required.
4. Oil selection
Oil over PAI SG grade is preferred.
SAE10W-30 or SAE10W-40 is preferred, and ASE5W-30 is used in cold region in the winter.
Note: For the best effect and the greatest safety, it is advisable to use the following lubrication oil.
a. Meet the requirements of API level.
b. Select proper SAE viscosity rating within expected ambient temperature.
The lubrication oil that can not meet the requirements of SAE viscosity and API label at the same time is not
allowed.
5. Check the coolant.
(1) After the engine is cooled down, remove the radiator cover.EngineEngine Assembly3-1 -
Notes:
If noise occurred does not belong to any of the above-mentioned situations, please find out the cause according
to "receiving problem".
5. CD phonograph
CD phonograph (hereafter referred to as CD) uses laser beam to read digital signals recorded on CD, then revert
to analog signal of music.
Notes:
Don't attempt to break down or apply oil to any component of the phonograph. Do not insert anything other
than a CD into optical disk cartridge.
Notes:
CD phonograph uses invisible laser beam, could generate harmful radialization, always operate phonograph
according to instructions.
6. Maintenance
(1) Cleaning of magnetic tape phonograph, magnetic head:
a. Open tape cartridge gate with your finger, use a pencil or a similar article to insert guider.
b. use cleaning pen or cotton swabs with detergent to wipe magnetic head surface, idler wheel or guide
pulley.
(2) CD phonograph, CD cleaning:
If CD is dirty, use soft cloth to wipe the surface from CD center radially outwards.
Notes:
Don't use ordinary recorder detergent or antistatic protectant. 4. Noise problem
Detailed description of noise problem fed back by customers is of great importance for analyzing and
eliminating noise interference, the table below may be used for diagnosis.Audio System -Audio System Description5-39Noise condition
Noise occurs in special position
Noise occurs when receiving small
signal
Noise only occurs at night
Noise occurs in special position
during driving Radio wave
AM
FMCause
Most probably external noise
Broadcast from local station might broadcast the same
program. If program is the same, one of them might be
disturbed
Most probably from remote interference
Most probably is multiplex interference due to FM
frequency changeExample:
Magnetic head
Guide pulley
Idler wheel
Item
Temperature regulation method
CompressorNominal refrigerating capacity / w
Displacement / (ml /r)
Model
Power consumed by magnetic clutch /W
Lubricating oil / ml
BlowerMaximum air quantity / (m3/h)
Air regulation
Motor power / W
Dimension /mm
Heat exchange quantity / W
Fan motor current / A
Fan motor revolution / (r/min)
Dimension /mm
Refrigerating capacity /W
Thermostatic expansion valve Condenser
Evaporator
Driving belt
Refrigerant filling amount/gChapter 7 Air Conditioning SystemSection 1 General InformationOverview:Air-conditioning system consists of refrigeration and heating parts. Refrigerating system mainly consists of
compressor, condenser and evaporator etc, it adsorbs heat in the air through circulation of refrigerant, so as to
reduce air temperature in car body and eliminate water vapour in air, to achieve the purpose of temperature drop
and dehumidification. Heating system mainly consists of heat exchanger and heater unit. It utilizes heat of engine
cooling water to heat air via heat exchanger, so as to achieve the purpose of heating. Regulation and control of
temperature, humidity and flow rate of air in car body is realized via heating and refrigeration systems separately
or jointly.
For parameters of refrigerating system, see the table:
Parameter
Control mixing of cool and warm air
4200
143 131
SEBX13 FM10S13
43
300001202/150ml cm3 420
Manual 4 speed
200
16 x 350 x 630
10000
8
2200
225 x 250 x 58
4000
Internal balance type 1. 5 tons of refrigeration
4PK820
440±20g 420±10g+20
05-72Air Conditioning System -
General Information
Fault symptom
Flameout, poor idle speedChapter 9 Engine EFI SystemI. Outline This system includes sensor that detects engine functioning. Engine ECU utilizes sensors installed at differ-
ent parts of engine to measure various working parameters of engine, accurately control oil injection quantity
according to control procedure set in engine electronic control unit, so engine could work in optimum mode
under various operating conditions, i. e. optimal power output, the most economical oil consumption, optimal
exhaust emissions. Engine ECU is capable of start up control, idle speed closed-loop control, air fuel ratio
closed-loop control, canister control, transient operation control, angle of ignition control, knocking control, air
conditioning control, coasting fuel cutoff and overspeed fuel cutoff control, ternary catalyst heating and protec-
tion control, system self-diagnosis etc.II. Inspection of control element1. Manifold intake pressure temperature sensor
(1) The part to measure intake pressure is piezo type sensor, could provide controller with "load signal "
according to the difference between atmospheric pressure and manifold pressure; controller will supply 5V
voltage, and feed back 0-5V voltage to controller according to different intake pressures. The part to measure
intake temperature is NTC type (negative temperature coefficient) sensor, resistance changes with intake
temperature, this sensor conveys a voltage representing intake temperature change to the controller.
(2) Simple measuring method:
Temperature sensor part: (remove joint) turn digital multimeter
to Ohm position, two meter pens connect sensor 1 #, 2 # pinrespectively, rated resistance is 2. 5k ohm±5% at 20°C, correspond-ing resistance value may be measured from the above characteristic
curve. Simulation method may also be used for measurement, spe-
cific procedure is to use electric drier to blast sensor (pay attention not
to be too close), observe change of sensor resistance, here resistanceEngine EFI System-Engine EFI System5-120Possible cause
There is abnormal high voltage or reverse heavy current during useVacuum
unit is damaged during repair
Repair precautions: it is prohibit to use high pressure gas to impact vacuum unit during repair; when replace
sensor case of trouble, check whether generator output voltage and current is normal or not.1 2 3 4Manifold intake pressure temperature
sensor Intake pressure sensor feature cureIntake temperature feature curve
Output voltageAbsolute pressureTemperatureResistance
Fault symptom Possible cause
Poor speedup etc Man made fault1 2 3Throttle position sensorFault symptom Possible cause
Difficult to start Man made fault Repair precautions: pay attention to mounting position.
(2) Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect
two meter pens with sensor 1 #, 2 # pin respectively, its resistance
value at room temperature is 2k ohm±20 %. Connect two meter pens
with 1 #, 3# pin respectively, rotate throttle, its resistance value shows
linear change with opening of throttle, while situation is reverse for
2 #, 3# pin.
Note: when observe change of resistance value, pay attention to observe whether has large leap.
3. Coolant temperature sensor
(1) This sensor is a negative temperature coefficient (NTC) thermistor, its resistance value decreases with
increase of temperature, but not a linear relationship. This thermistor is installed in a copper heat conducting sleeve.Engine EFI System-Engine EFI System5-121should drop.
Pressure sensor part: (connect joint), turn digital multimeter to DC voltage position, black meter pen is earthed,
red meter pen is connected with 3#, 4# pin respectively. In condition of idle speed, 3# pin should have reference
voltage of 5 V, 4 # pin voltage should be about 1. 3 V (specific value is related with vehicle type); in no-load
condition, open the throttle slowly, change of voltage of 4 # pin is not large; open the throttle quickly, voltage of
4 # pin may reach about 4V in no time (specific value is related with vehicle type), then it drops down to about
1. 5 V.
2. Throttle position sensor
(1) This sensor is actually corner potentiometer with linear output characteristic. Potentiometer tumbler is
mounted coaxially with throttle, when throttle rotates, it drives potentiometer tumbler to slide to certain position,
potentiometer outputs voltage signal proportional to throttle position. Mounting torque: 20 N.m(Max)
(2) Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect two meter pens with sensor pins respectively,rated resistance at 20°C is 2.5 k ohm± 5%. Simulation method may also be used for measurement, specificprocedure is to put sensor work area into boiled water (pay attention to soak for sufficient time), observe changeof sensor resistance, now resistance should drop down to 300 ohm-400 ohm (specific value subjects to temperatureof boiled water).
Resistance value (K ohm)
No.Temperature
(°C) Temperature tolerance ±1°C Temperature tolerance ±0°C
Min. Max. Min. Max.
1 8.16 10.74 8.62 10.28 -10
2 2.27 2.73 2.37 2063 +20
3 0.290 0.354 0.299 0.345 +80