2008 GEELY MK ECO mode

Geely “MK” series sedans (JL7132U,JL7132HU,JL7152U,JL7152HU,JL7162U) are brand
new superior models developed by Geely Group who has fully proprietary intellectual property
rights. As a result of the three years of involvements and efforts of the experts from Geely Automo-
bile Research Institute, these sedans reach international leading level in model design, power,
sense of comfort, safety and manufacturing technology while featured in beautiful appearance,
economy, environment protection and safety. The meaning of MK implied that Geely Automobile
has a great development from caterpillar to butterfly. With respect to the power, Geely “MK” series
sedans are equipped with 1.3L, 1.5L, and 1.6L EFI engines developed and manufactured by Geely
itself, and has reached “Chinese III” (Euro III) emission standard.
This manual contains a detailed description of the structures and principles, servicing and adjustment,
removal, assembling technology and matching clearance of the parts of the Geely “MK” sedans
with torque information of the bolts and nuts as well as schematic diagram for special tool operation.
This manual also introduces the transmission control system of the automatic transmission models,
vehicle electric circuits and elaborates ABS system, SRS, BOSCH M7.9.7 electronic control fuel
injection and ignition system, rear parking radar, sound, air conditioning and onboard hands-free
phone system. You can refer to this manual for the information about the regular maintenance,
servicing, adjustment, troubleshooting, removal and installation procedure, specific operations of
the “MK” sedans.
This manual covers the matching relation among the engine assembly, transmission assembly and
the vehicle, but does not have the further description of the structures and principles of the engine
and transmission assemblies and their servicing process. You can refer to the service manuals
solely prepared for engine assembly and transmission assembly for these information.
All information in this manual is based on the latest products released at the time of publication of
this manual. However, the specifications and procedures may need to be modified, and the subse-
quent change will be revealed in later versions.
This manual is prepared by Geely Automobile Research Institute under the assistance of technical
staff from Zhejiang Geely Automobile Co., Ltd and Geely International Corporation. Readers
discovering during the use of this manual the errors and careless omissions due to limited skills of
the preparers and tight schedule are encouraged and pled to contact Geely International in time for
our timely correction of the mistakes.ForewordGeely International Corporation
Nov . 2007

General Information - How to Use This Manual1-1Part 1 General InformationChapter 1 How to Use This ManualI. Instruction1. General Information
(1)This manual conform to the first part of GB/T1.1--2000 Standardization Guide: The structure and prepar-
ing rule of the standard.
(2)Generally, the repairing job can be divided into the following 3 procedures:
1. Diagnosis
2. Removal and installation, replacement, disassembly and inspection, adjustment
3. Final inspection
(3) The first procedure “Diagnosis” (the details refers to each section or chapter) and second procedure “Re-
moval and installation, replacement, disassembly and inspection, adjustment” are scattered in the chapters and
sections, and this manual omits the third procedure “Final inspection”.
(4) This manual does not include the following basic operations which are imperative in real scenarios.
operate the jack or lifter
b. clean the removed parts if necessary.
c. inspect the appearance
2. Preparation
SST (Special Service Tools) and SSM (Special Service Materials) may be required and correctly used based
on the repairing condition, make sure the job procedure is followed.
3. Repair Procedure
(1) The disassembly illustration is placed under the title.
(2) The illustration shows the disassembly of the parts to help you understand the assembly of the parts. (3) Non-reusable parts need to be coated with grease, and the precoated parts and torque are specially shownin the disassembly illustration.
(4) Sometimes, the illustrations of the similar model are used where there may be some details differently
from the actual vehicle.
(5)The operational procedure is described in the following ways:
a. The illustration shows what to do and where to do it.
b. The task heading tells what to do.
c.The detailed text tells how to perform the task and gives other information such as specifications and
warnings.
4. Specification
Specifications are presented in bold type throughout the manual.
5.Term Definition
6. International System of Unit
The Units given in this manual are primarily expressed according to the International System of Unit.Caution indicates there is a possibility of injury to you or other people.
Notice indicates the possibility of damage to the components being repaired.
Tip provides additional information to help you perform the repair efficiently.a.

12. Check the compressing pressure (see Figure 1-4).
(1) Warm up and switch off the engine.
(2) Remove the secondary wire.
(3) Remove the spark plug.
(4) Check the compressing pressure in the cylinder.
a.Insert the pressure gauge into the spark plug bore.
b. Throttle widely opens.
c. Rotate the engine crankshaft and measure the compressing
pressure (see Table 2).Figure 1-4Table 2Cylinder compressing pressure (KPa)Pressure difference range of cylinders of this model (KPa)Minimum compressing pressure (KPa)MR479Q MR479QA MR481QA
1250 1320 1360
100
980
Attention:
The electric quantity in the battery should be always enough, and the engine speed should be not less than
250r/min.

Check the compressing pressure in other cylinders in the same way.
Measure as soon as possible.
(5) If the compressing pressure in more than one cylinder is relatively low, fill a bit engine oil to the cylinder
through the spark plug bore, and repeat step a to c to check.
Tip:

If the compressing pressure is increased after the oil is filled, the piston ring or the cylinder may be worn or
damaged.
If the pressure is still low, the valve may be jammed or badly sealed, or the washer may be leaked.
13. Check CO/HC.
(1) Start the engine.
(2) Keep the engine running at a speed of 2500 r/min for about 180s.
(3) During idling, insert the test bar of CO/HC instrument into the exhaust pipe about 40cm depth at least.
(4) Check the concentration of emission of CO/HC at idle speed and at a speed of 2500 r/min respectively.
Tip:

Measure within 3 minutes.
Test the concentration of emission and lambda value of CO/HC at idle speed and at a speed of 2500 r/min
respectively according to GB18352.3-2005 standard.
(5) If the concentration of CO/HC is not up to standard, carry out fault diagnosis by following the steps below.
(1) Check oxygen sensor.
(2) Refer to Table 3 to find possible causes, check and repair.Engine AssemblyEngine Inspection3-4 -

Audio System -Audio System Inspection5-51 Abnormal: Replace the disc box
(2) Replace the disc box
Normal: Box damaged
Abnormal: Check and replace radio assembly
12. CD sound jump
(1) Disc cleaning

If the disc gets dirty, clean the disc by wiping the surface from the center to outside in the radial directions
with a soft cloth.

Notice:

Do not use a conventional record cleaner or anti--static preservative.

Standard: The fault is cleared.

Normal: The disc is dirty

Abnormal: Replace it with another CD and re-check.
(2) Replace it with another CD and re-check. Standard: The fault is cleared.

Normal: CD failure

Abnormal: Check when it will happen
(3) Check when it will happen

Check where sound jump will happen Standard: Drive on bumpy road

Normal: Replace CD box

Abnormal: Compare with other vehicles of the same model
(4) Compare with other vehicles of the same model

Compare with other vehicles of the same model of no fault. Check for any difference when faulty occurs.

Standard: No difference is found.

Normal: Make sure there is no difference

Abnormal: Check CD box installation
(5) Check CD box installation

Check CD box installation

Standard: Installation correct

Abnormal: Install CD box correctly

Normal: Has sudden temperature change occurs inside the disk cabin?
(6) Has sudden temperature change occurs inside the disk cabin?

Check if sudden temperature change occurs inside the disk cabin?

Standard: Sudden temperature change occurs inside the disk cabin.

Description: Formulation of dew condensation inside the CD player is due to temperature changes. CD may
not play.

Normal: Formulation of dew condensation due to temperature changes (Leave it for a while before
using it)

Abnormal: Check and replace CD box

VI. Filling brake fuid and bleadAfter replace HECU, besides filling and blead as per routine brake system, also blead the secondary circuit of
HECU. Steps are as follows if fault diagnosis instrument is used for operation:MK-60 ABS system -Removal and Installation5-119Perform charging blead according to routine brake system until no bubble
appears in transparent rubber tube
Connect fault diagnosis instrument and diagnostic interface
Select function 04, press OK key to confirm
Step down brake pedal and keep rebound of hydraulic pump work pedal
Release the brake, loosen left and right front brake tongs venting screws,
press " " key
Step on brake pedal for 10 times, tighten up left and right front brake
tongs venting screws, press " " key
Repeat the above Step I II III for seven times, then press " " key.
Screen displays end of exhaust, press " " key to return to "function
selection" menu
Select function 06, press OK key to exit diagnosis modeEnd

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

5. Base Anti-rust Processing
Impact-proof Coat
In order to avoid corrosion and protect the body from being damaged by bouncing stone on the road, a layer
of impact-proof coat is applied on the door threshold plate, arc area and balancing plate etc.
Tips: There are two types of painting: impact-resistant coat on the electrophoresis primer or on the surface paint
according to different types and painting positions. (See Fig.5-22)7-15IV. Repair Requirement 1. As the body is an integral structure and the steel plates used are not thick, special attention shall be paid to
reinforce the parts acted in the reshaping process in the plate work processing. For the parts that burden the stress
intensively, measures shall be taken to lower the local stress.
2. After the plate work processing, note to apply the antirust primer on the inside and outside surfaces to avoid
corrosion.
3. In the body repair process, repair the old parts; or remove the parts with serious defects and order new parts
from the manufacturer.
4. When making body reshaping or parts welding, make sure that all main control points of the body are within
the specified scope in the design.
5. The strength and serviceability of the repaired body shall not be lower than those of the new vehicle.
6. The outside decoration of the repaired body shall meet the requirements by the new vehicle body and the
drivers in various aspects, such as modern aesthetics and ergonomics etc. (b) Apply primer
In order to prevent rust and protect the body steel plate from
being damaged by the bouncing stone, sufficient primer is
applied onto the body base and inner wheel cup.
(c) Apply antirust (wax)
In order to prevent the painting part from rusting, sufficient
antirust is applied on the engine cover, door inner corner, hinge
ambiance, or in the inside welding part of the box section
structures such as side beam, body post.Fig. 5-22 Apply the impact-proof coat on the surface paint
Impact-proof coat
Surface paint
Intermediate primer
Electrophoresis primer
Steel sheet Apply the impact-proof coat on the electrophoresis primer
Surface paint
Intermediate primer
Impact-proof coat
Electrophoresis primer
Steel sheetBody Repair -Body Damage Forms and requirements For Repair