Page 146 of 715
01-4
2. MAJOR COMPONENTS
Front view ▶
Vacuum pump
Camshaft position sensor
Oil filter assembly
Power steering pump pulley
Oil pressure switch
Water pump pulley
Idler pulley No. 22
Alternator pulley
Auto tensioner
Idler pulley No. 1
A/C compressor pulley
Rear view ▶
E-EGR valve
Fuel temperature sensor
Fuel HP pump assembly
Coolant temperature sensor
Crankshaft position sensorIMV valve
Isolation damper
Page 149 of 715
01-70000-00
1) Service Interval
DescriptionDaily
inspectionWeekly
inspectionService interval
Engine oil & oil
filterInspection - EU Change every 20,000 km or 12
months (The service interval should
be shortened under severe
conditions)
General Change every 15,000 km or 12
months (The service interval should
be shortened under severe
conditions)
Coolant Inspection - Change every 200,000 km or 5 years
Air cleaner
element- Inspection Diesel EU Change every 20,000 km
(The service interval should
be shortened under severe
conditions)
General Change every 15,000 km
(The service interval should
be shortened under severe
conditions)
Gasoline Clean every 15,000 km, replace every
60,000 km (The service interval should
be shortened under severe
conditions)
Fuel filter - - EU Change every 40,000 km (Draining
water from fuel filter: whenever
replacing the engine oil)
General Change every 45,000 km (Draining
water from fuel filter: whenever
replacing the engine oil)
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01-130000-00
T/C oil supply pipe M6(to block) 1 10±1.0Nm -
M6
(to turbocharger)1 17±2.0Nm-
T/C oil return pipeM6×16(to block)2 10±1Nm -
M6×16
(to turbocharger)210±1Nm -
EGR valveM8×223 25±2.5Nm -
EGR pipe bolt
(to exhaust manifold)M8×16 2 10±1Nm -
EGR pipe bolt
(to EGR cooler)M8×16 2 25±2.5Nm -
Name SizeNumbers of
fastenerTightening torque
(Nm)Note (total
tightening
torque)
Hot water inlet pipeM6×12210±1Nm-
AlternatorM10×901(LO) 25±2.5Nm -
M10×1161(HI) 46±4.6Nm -
Air conditioner
compressorM8×854 25~2.5Nm -
Air conditioner bracketM6×25410±1Nm-
Intake manifoldM8×35225±2.5Nm-
M8×110625±2.5Nm-
Oil filter moduleM8×40625±2.5Nm-
M8×20125±2.5Nm-
M8×140225±2.5Nm-
Knock sensorM8×28220±5Nm-
Camshaft position
sensorM8×141 10~14Nm -
T-T-MAP pressure
sensorM6×20110±1Nm-
Exhaust manifold M8 1040±4Nm-
Turbocharger M8 325±2.5Nm-
T/C support bolt M8 125±2.5Nm-
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01-14
Name SizeNumbers of
fastenerTightening
torque (Nm)Note (total
tightening
torque)
Idler pulley/tensioner
pulley1 45±4.5Nm -
Glow plug M5 4 20±2Nm -
Vacuum pumpM8×25 3 10±1Nm -
Timing gear case coverM6×40 7 10±1Nm -
M6×45 1 10±1Nm -
M6×50 3 10±1Nm -
Cylinder head coverM6×35 21 10±1Nm -
Oil dipstick gauge coverM6×16 1 10±1Nm -
Oil filter cap 1 25±2.5Nm -
Fuel railM8×25 2 25±2.5Nm -
Injector clamp boltM6×44 2 9±1.0Nm
130˚±10˚ -
High pressure pipe
(between high pressure
pump and fuel rail
assembly)M17 1 30±3Nm -
High pressure pipe
(between fuel rail
assembly and injector)M17 4 30±3Nm -
Crankshaft position sensorM5×14 1 8±0.4Nm -
Main wiringM6×16 5 10±1Nm -
Intake ductM8×25 3 25±2.5Nm -
Power steering pumpM8×100 3 25±2.5Nm -
Cylinder head front coverM6×10 5 10±1Nm -
Ladder frameM8×16 5 30±3Nm -
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02-50000-00
Component SizeBolt
QuantitySpecified torque
(Nm)Remark
(Total torque)
Hot water inlet pipeM6×12210±1Nm-
AlternatorM10×901(lower) 25±2.5Nm-
M10×1161(upper) 46±4.6Nm-
A/C compressorM8×85425±2.5Nm-
A/C bracketM6×25410±1Nm-
Intake manifoldM8×35225±2.5Nm-
M8×110625±2.5Nm-
Oil filter moduleM8×40625±2.5Nm-
M8×20125±2.5Nm-
M8×140225±2.5Nm-
Knock sensorM8×28220±5Nm-
Cam position sensorM8×141 10~14Nm -
T-MAP pressure
sensorM6×20110±1Nm-
Exhaust manifold M8 1040±4Nm-
Turbocharger M8 325±2.5Nm-
T/C support bolt 125±2.5Nm-
T/C support nut M8 125±2.5Nm-
T/C oil supply pipe M6(block side) 110±1.0Nm-
M6(turbo side) 117±2.0Nm-
T/C oil return pipeM6×16
(turbo side)210±1Nm-
M6×16
(block side)210±1Nm-
EGR valveM8×22325±2.5Nm-
EGR pipe bolt
(Intake side)M8×16210±1.0Nm-
EGR pipe bolt
(EGR cooler side)M8×16225±2.5Nm-
Idle pulley/Tensioner
pulley145±4.5Nm -
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02-6
Cylinder head coverM6×352110±1Nm-
Oil gauge tubeM6×16110±1Nm-
Oil filter cap 125±2.5Nm-
Fuel railM8×25225±2.5Nm-
Injector clamp boltM6×4429±1.0Nm
130˚±10˚-
High pressure pipe
(between HP pump and
fuel rail)M17 130±3Nm-
High pressure pipe
(between fuel rail and
injector)M17 430±3Nm-
Crank position sensorM5×1418±0.4Nm-
Main wiringM6×16510±1Nm-
Intake ductM8×25325±2.5Nm-
Power steering pumpM8×100325±2.5Nm-
Cylinder head front
coverM6×10510±1Nm-
Ladder frame M8x16 530±3Nm-
Component SizeBolt
QuantitySpecified torque
(Nm)Remark
(Total torque)
Glow plug M5 420±2Nm-
Vacuum pumpM8×25310±1Nm-
Timing gear case coverM6×40710±1Nm-
M6×45110±1Nm-
M6×50310±1Nm-
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02-490000-00
The bottom side of water jacket is desgined as sine wave to strengthen the structure of crankcase.
The main flow of coolant starts from outlet port of water pump and goes along the longitudinal
direction of engine. The coolant passage from cylinder head to inlet port of water pump is
integrated in cylinder head.
The engine oil from oil pump is supplied to the main oil gallery through oil channel, oil filter
module and cross bore in cylinder block without using external pipes. This oil is supplied to main
bearing, cylinder head and MBU. And, it is sprayed to the chain through the chain tensioner
connected to cross bore.
Crankcase cross bore for oil supply
Water jacket core
Page 224 of 715

03-20
Water
separator
(2) Di engine and its expected problems and remedies can be caused by
water in fuel
System supplement against paraffin separation ▶
In case of Diesel fuel, paraffin, one of the elements, can be separated from fuel during winter and
then can stick on the fuel filter blocking fuel flow and causing difficult starting finally. Oil
companies supply summer fuel and winter fuel by differentiating mixing ratio of kerosene and
other elements by region and season. However, above phenomenon can be happened if stations
have poor facilities or sell improper fuel for the season. In case of DI engine, purity of fuel is very
important factor to keep internal preciseness of HP pump and injector.
Accordingly, more dense mesh than conventional fuel filter is used. To prevent fuel filter internal
clogging due to paraffin separation, SYMC is using fuel line that high pressure and temperature
fuel injected by injector returns through fuel filter to have an effect of built-in heater (see fuel
system).
System supplement and remedy against water in fuel ▶
As mentioned above, some gas stations supply fuel with excessive than specified water. In the
conventional IDI engine, excessive water in the fuel only causes dropping engine power or engine
hunting. However, fuel system in the DI engine consists of precise components so water in the
fuel can cause malfunctions of HP pump due to poor lubrication of pump caused by poor coating
film during high speed pumping and bacterization (under long period parking). To prevent
problems can be caused by excessive water in fuel, water separator is installed inside of fuel
filter. When fuel is passing filter, water that has relatively bigger specific gravity is accumulated on
the bottom of the filter.
Water drain from water separator ▶
If water in the separator on the fuel filter exceeds a certain level, it will be supplied to HP pump
with fuel, so the engine ECU turns on warning lamp on the meter cluster and buzzer if water level
is higher than a certain level.
Due to engine layout, a customer cannot easily drain water from fuel filter directly, so if a
customer checks in to change engine oil, be sure to perform water drain from fuel filter.
To separate the water from the fuel filter,
remove the fuel filter assembly first.