fuel consumption GEELY MK 2008 Workshop Manual

II. Introduction of major systems Table 2 Models and technical data of major systems.
JL7132U JL7152U JL7162U JL7132HU JL7152HU
4
MR479Q MR479QA MR481QA MR479Q MR479QAIn-line 4 cylinder In-line 4 cylinder In-line 4 cylinder In-line 4 cylinder In-line 4 cylinder78.7 78.7 81.0 78.7 78.7
69.0 77.0 77.0 69.0 77.0
1.342 1.498 1.587 1.342 1.498
9.3 : 1 9.8 : 19.6 : 19.3 : 1 9.8 : 1
63/6000 69/6000 78.7/6000 63/6000 69/6000
110/5200 128/3400 137/4400 110/5200 128/3400
800±50
1-3-4-2 1-3-4-2 1-3-4-2 1-3-4-2 1-3-4-2
259 279 269 259 279
JL-S160 JL-S160A JL-Z110 JL-Z130
3.182 3.087 3.087
1.895 1.634 1.634
1.250 1 1
0.909 / /
0.703 / /
3.083 2.29 2.29
4.308 3.317 3.317
Hydraulic Gear-rack
Hydraulic, X-type pipe
Vacuum booster, Front Wheel Disc, Rear Wheel Drum
McPherson suspension strut system
Twist beam independent suspension system
85/60R15(1175/65R14)
230(Front)/210(Rear)
Aluminum 15X6J (Iron 14X5 1/2JJ)
45
Unitary construction body Unit
mm
mm
L
kw/r/min
N.
m/r/min
r/min
g/kw.
h
KPa
L Item Description
Drive Type ID
1
2
3
4
5
6
7
8
9
10EngineModel
Type
Bore Diameter
Piston play
DisplacementCompression RatioMax Power
Max Torque
Idle Speed
Ignition Sequenceminimum fuel consumption rateTransmission
Braking
system
suspension
Tire Clutch Type
Steering type
Model
Booster type
Front
Rear
Specification
Tire pressure
Wheel
Fuel Tank Capacity
Body structureSingle disc, Plate and dry SpringBrief Introduction of Geely MK - Major Functional and Technical Data of MK Series.2-2Model
1st gear
2nd gear
3rd gear
4th gear
5th gear
Reverse gearFinal Drive Ratio /Front Wheel Drive ›‹
2
800±50800±50
800±50
800±50

Table 3 Power Performance Parameter
Table 4 Economic Performance ParameterUnit
km/h
s
s
km/h
% Item Name
Maximum vehicle speedAcceleration time within the fourth gear from 30km/h to 120km/hAcceleration time from 0-100km/hMinimum stable vehicle speed within the fourth gearMaximum gradeability No.
1
2
3
4
5Unit
L/100km
L/100km
m Item Name
Fuel consumption at constant speed (60km/h)
Fuel consumption at constant speed (90km/h)Coasting distance (fully loaded, initial speed 50km/h)No.
1
2
3JL7132U JL7152U JL7162UJL7132HU JL7152HU


/JL7132U JL7152U JL7162UJL7132HU JL7152HU
4.5
550Brief Introduction of Geely MK - Vehicle Configuration2-3Section 2 Vehicle ConfigurationType
Common color
Uncommon color
Exterior
device
Seat Interior
deviceItem NameNo.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19Standard Comfortable Luxury
Firry red Firry red
Titanium silver Body colorChinese red, snow mountain white, pearl black, sky blue, ribbon silver
Crystal diamond silver, golden sand green, pineapple yellowFront chromeplated trim molding
Diamond-shape headlight
Crystal diamond taillight
Highly penetrable front fog light
Green heat insulating four-door glass
Scuff strip with same color as that of the body
Aluminum alloy wheel rim
Tire (185/60R15) (with spare tire)
Retractive antenna (A pillar)
Bumper with same color as that of the bodyLight color (T)deep color(S)mixed color(R)interior trimCentral control panel
A/C outlet vent + trim ring
Chromeplated inner handle
Sun shade (with ticket folder)
High-grade flannelette
Luxury leatherFront seat headrest front and rear angle/height adjustable function
/ /
20
2522
16.5 18
20165
33
28 30155 175 165 155
306.25.1
4.65.0
4.7
6.7
6.36.6 6.2
550 550
550 550 / /
/ / / /

2-10 must be running at medium speed without load. Increase the speed and load gradually with the
accumulation of breaking-in mileage.
b. Because the brake plat is not broken in on a new vehicle,in order to ensure safety and reduce wear,avoid
harsh brake, and brake for multiple times to break in the brake plate faster.
c. It is better to avoid driving vehicle on steep roads or in bad conditions during breaking-in period.
d. Pay special attention to engine coolant temperature meter and oil pressure meter.Check engine oil level
frequently and make sure engine works in normal temperature and good lubrication.
e. Maintain the vehicle strictly according to first-time maintenance requirements to bring the vehicle into
normal usage life under good condition.
7.vehicle towing
There are towing facilities both in the front and rear end of MK-1 sedan for towing other vehicles and being towed.
To ensure safety, pay attention to the following instructions when towing.
(1) Towing car Towing car should be started and shifted steadily.The speed should be no more than 40km/h.
(2) Follow the instructions below when being towed:
a. Steering system of the vehicle being towed works well.
b. Braking system of the vehicle being towed works well or it cannot be towed with a rope and must be
towed with the towing shaft instead.
c. Release park brake and shift the transmission to neutral gear when the vehicle is being towed.
d. Turn the ignition switch to ACC to allow turning signal lights,braking indicator to be turned on when
necessary.
e. The towing rope must be tensioned in the towing process.
f. If the purpose of towing is to start the engine, shift the transmission to the 2nd or 3rd gear to increase
engine speed. It is good for starting the engine.
8. Instructions to save fuel when using the vehicle
(1) Reasonable load Do not store useless articles in luggage compartment because they consumes fuel for
nothing.
(2) Correct driving style Instructions as follows:
a. When engine is started, do not heat it but press the accelerator pedal slightly, drive the vehicle slowly
and accelerate gradually.
b. Shift to higher gears when driving to allow the engine to work at appropriate engine speed and avoid
running the engine at low or high speed. The engine speed should be higher than 2500r/min when
driving, and higher than 3000r/min when up-shifting.
c. Keep the vehicle speed stable, and avoid harsh acceleration and frequent braking.
d. Pay attention to vehicle speed. Drive at high speed results in excessive fuel consumption.
(3) Organize vehicle usage well Pay attention to the following two instructions.
a. Organize vehicle usage time and avoid short trips. Because at the beginning when the vehicle is started
(around 1km), the engine has not reached its efficiency point, and the fuel consumption doubles
compared to regular.
b. Select a good driving route, avoid driving through the city or blocks with heavy traffic.
(4) Keep the vehicle under good work condition Strictly follow instructions to maintain the vehicle to make
sure the vehicle is under good technical working condition, and inspect and replace key parts that affect vehicle
fuel consumptions. For example:Usage and Maintenance of MK Series - Usage of MK Series

2-11a. Keep air filter clean, Block of air filter affects engine air induction efficiency and increases fuel
consumption. So it must be cleaned and replaced in time.
b. Keep ignition system under good work condition. Bad connection or electricity leak of ignition coil and
power distributor or inappropriate gap or carbon residue of spark plug decreases ignition power supply
and efficiency, which leads to engine fuel consumption increase. So they need regular inspection and
repair to keep their good work condition.
c. Fuel feeding system works well. Often check if fuel feeder pipe leaks, and check if injectors and other
parts perform well on regular basis (electrical injection engines).
d. Keep regular tire pressure. If the tire pressure is not enough, vehicle rolling resistance increases and
engine fuel consumption increases accordingly. So tire pressure must be checked on time (around once
a week).Usage and Maintenance of MK Series - Usage of MK Series

2-18Section 3 Daily Maintenance of MK SedanDaily maintenance means operation of vehicle regular inspection, cleaning, fastening, and refilling according to
vehicle usage and condition on the basis of regular maintenance to make sure the vehicle is at good status. Daily
maintenance can be performed by driver or professional automotive mechanics in daily use of vehicle. But some
of the items must be conducted by professional mechanics at service shops.
1. Maintenance of air cleaner
Air cleaner filters the air that is coming into engine for the first time. Dust and other dirt filtered out gathers in the
induction tube. Air cleaner filters a lot of dust and dirty, so it must be cleaned in time.
2. Maintenance of air filter
Air filter does not only filter the dust and dirt in the air, but also keeps smooth ventilation. Its status has great effects
on the fuel economy and power of the engine, so it must be checked and maintained in time.
Before it is time to replace air filter, maintain it. Remove the filter, knock it with hand or stick to get rid of dust
on the filter and remove dirt inside the filter cover according to the cleanness of the road that the vehicle usually
runs on.
ATTENTION: do not clean the filter with wet cloth. Fasten the filter well when installing it back.
3. Maintenance of battery
Battery is used to start the vehicle and supply power to electrical facilities. Its status directly affects the regular
usage of the vehicle, especially for vehicles equipped with electrical controlled facilities. Keeping the battery in
good technical status and connections is especially important. It is necessary to often perform the following
inspections and maintenance in regular usage:
(1) Clean the outside of battery Inspect if the battery case or cover surface is dirty or has dirt, oil, or other dirty
things regularly. Clean it and keep the surface dry to avoid electrical leak caused by cover deformation.
(2) Check battery connections Bad connection between battery electrode and cable results in low engine start
speed which makes it difficult to start the vehicle or the vehicle cannot be started because of low output voltage
from battery. Loose connection at battery end leads to damage of electrical components and loss of trouble code
and other information stored in RAM of the computer system as a result of low voltage. Therefore, it is necessary
to check if the connection of cables on the battery electrode is good. When it is found loose, it must be fastened.
If there is any rust, the cables must be loosened, washed clean and be connected again.
4. Maintenance of tires and wheels
(1) Keeping tires and wheels under good condition is very important to vehicle fuel consumption and driving
safety. Therefore, inspect and maintain the tires regularly. Every 10000 km, the wheels should be adjusted. Follow
the sequence in picture 3:
Judge if there is any hidden problems in vehicle chassis mechanism by observing wear in different places, andfinding out the hidden problems does not only help you to understand
the technical status of the vehicle, but also benefits driving safety.
a. Serious wear on both edges of tire tread, means tires often
work with low tire pressure.
b. Wear of middle of the tire tread is mainly because the tires
are used with high tire pressure.This kind of wear shortens
the useful life of tires, and may result in sudden flat tire
when the vehicle runs on uneven road surface or meets any
obstacles.Usage and Maintenance of MK Series - Daily Maintenance of MK Sedan

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