2011 RENAULT SCENIC engine

13B-293
MR-372-J84-13B050$897.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Fault Finding Chart13B
NOTighten the interface
or the concerned pipe.
End of procedure.
ALP 19 Oil leak from the turbocharger
NOTESThis ALP concerns the following customer complaint:
– Oil leaks from the turbocharger.
Check the area around the turbocharger
Note:
An oil leak does not correspond always to a turbocharger fault, the oil leak can arise from the area around the
turbocharger.
According to the vehicle type, maximum visual access will either be from above or from below.
1-Do not start the engine.
Check the area around the turbocharger and identify the origin of the leaks.
Clean the oil traces on the turbocharger.
2- Start the engine and let it warm up for several minutes.
IMPORTANT
If the air filter was removed previously, refit it before starting the engine (risks foreign matter entering the air inlet
circuit).
Accelerate with no load several times, progressively increasing the duration before releasing the accelerator
pedal.
Visually inspect the exterior condition of the fuel supply pipes and the turbocharger oil return and the area around
it.
Identify the origin of the leaks.
Is an oil leak present at the air compressor inlet or outlet?
YES
Check the air compressor inlet or outlet
Check for a loose interface (inlet or outlet) that is the cause of the air
leak.
Note:
It is normal to find oil traces inside the pipes at the turbocharger inlet
or outlet, because the air entering the compressor is laden with oil
from the
engine rebreathing circuit.
Is the suspected interface properly tightened?
YES
Replace the pipe concerned (see MR 364 (Mégane II), 370 (Scénic II), 417 (Kangoo II), 385 (Modus), 392 (Clio
III), Mechanical, 12B, turbocharging).
NO
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_ALP19 / SID304_V45_ALP19 / SID301_V48_ALP19 / SID304_V49_ALP19 / SID304_V4D_ALP19 / SID301_V4C_ALP19
A

13B-294
MR-372-J84-13B050$897.mif
V17
DIESEL INJECTION
Fault finding – Fault Finding Chart
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
ALP 19
CONTINUED 1
Is an oil leak present only at the casing of the compressor section?
YES NO
The turbocharger is not faulty. The oil leak is
from another engine component and the oil is
flowing onto the turbocharger.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
A
B

13B-295
MR-372-J84-13B050$897.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Fault Finding Chart13B
NO
End of procedure.
ALP 19
CONTINUED 2
Is an oil leak present at the turbocharger oil supply inlet or outlet?
YESNO
Check the turbocharger oil supply inlet and
outlet
Check for a loose interface (inlet or outlet) that is
the cause of the oil leak.
Is the suspected interface properly
tightened?
YES
Only replace the seal or pipe of the part concerned (see MR 364 (Mégane II), 370 (Scénic II), 417
(Kangoo II), 385 (Modus), 392 (Clio III), Mechanical, 12B, turbocharging).
Is an oil leak present at the interfaces of the turbine casing and the exhaust pipes?
YES
The turbocharger is not faulty. There is probably another fault in the engine.
Mark the component from which arises the leak and refer to the repair manual (see MR 364 (Mégane II), 370
(Scénic II), 417 (Kangoo II), 385 (Modus), 392 (Clio III), 10A Engine and Peripherals).
NOTighten the pipe concerned.
End of procedure.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
B

13B-296
MR-372-J84-13B050$897.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP 20 Exhaust fumes
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Is the vehicle equipped with a particle filter?
(Vdiag 45, 49 and 4D only)
NO
Check the engine oil grade and level.
Check the presence and conformity of the fuel, by running Test 13 Diesel fuel conformity check, and its circuit
(see MR 385, 392, 364, 370 or 417, Mechanical, 13A, Fuel supply).
Check the cooling system (see MR 385 392 364, 370 or 417 Mechanics, 19A, Cooling, Engine cooling system:
Specifications).
Check the fuel temperature sensor (refer to the interpretation of Fuel temperature sensor circuit faults DF098).
Check the coolant temperature sensor (refer to the interpretation of faults DF001 Coolant temperature sensor
circuit).
Check the air inlet circuit (refer to the interpretation of fault DF301 Air inlet circuit).
Check that the damper valve operates correctly (refer to the interpretation of fault DF641 Damper valve circuit).
Check the air flowmeter (refer to the interpretation of faults DF039 Inlet air temperature sensor circuit, DF129 Air
flow requested and DF056 Air flow sensor circuit).
Check the turbocharging pressure (consult the interpretation of fault DF004 Turbocharging pressure sensor circuit).
Check the preheating system (refer to the interpretation of fault DF025 Preheating unit diagnostic line).
Check the injection computer: that the connections and wiring are in good condition, that earths and feeds are present.
If the wiring is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring, otherwise replace it.
YES
Deal with the following faults first: DF238
Thermoplunger no. 3 relay circuit, DF239
Thermoplunger no. 2 relay circuit, DF240
Thermoplunger no. 1 relay circuit and DF1005
Thermoplunger control unit fault finding 1
connection. Check the particle filter injector supply
circuit, by running Test 8 Checking the particle filter
injector supply circuit.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_ALP20 / SID304_V45_ALP20 / SID301_V48_ALP20 / SID304_V49_ALP20 / SID304_V4D_ALP20 / SID301_V4C_ALP20
A

13B-297
MR-372-J84-13B050$897.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP 20
CONTINUED
Check the high pressure fuel supply system by performing test 3 High pressure fuel pressure solenoid valve
check, test 4 High pressure pump (HPP) and fuel flow solenoid valve check and test 5 Rail high pressure
regulation circuit check.
Check the injectors by performing test 6 Major injector leak/injectors open and test 7 Incorrect injection
amount.
Start the engine and warm it up at idle speed for 10 minutes.
IMPORTANT
If the air filter was removed previously, refit it before starting the engine (risks foreign matter entering the air inlet
circuit).
Perform several rapid and brief accelerations under no load.
Note:
The presence of smoke is often normal.
The quantity, density, colour and persistence of the smoke are the important factors.
Is the exhaust outlet producing abnormal smoke?
YES
Consult Te s t 1 2 Tu r b o c h a r g e r.
NO
The turbocharger is not faulty.
Check the other engine components by referring
to the repair manual (see MR 364 (Mégane II),
370 (Scénic II), 417 (Kangoo II), 385 (Modus),
392 (Clio III), 10A Engine and peripherals and
13B Diesel injection).
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
A

13B-301
MR-372-J84-13B050$936.mif
V17
13B
DIESEL INJECTION
Fault finding – Tests
Some special checks are grouped under the heading Tests and are used as required in different fault
finding charts (ALP) or interpretation of faults.
*Technical Note 3419: Fault finding on the turbocharger for petrol and diesel engines
NOTESOnly consult these tests when dealing with a fault finding chart (ALP) or when
interpreting faults.
Low pressure fuel supply system check. TEST 1
Internal fuel transfer pump (ITP) check. TEST 2
High pressure fuel pressure solenoid valve check. TEST 3
Check high-pressure pump (HPP) and fuel flow solenoid valve. TEST 4
Rail high pressure control circuit check. TEST 5
Major leak in injectors/injectors open. TEST 6
Incorrect injection quantity. TEST 7
Particle filter injector supply circuit check.
Only for Vdiag 45, 49 and 4D.TEST 8
Particle filter history.
Only for Vdiag 45, 49 and 4D.TEST 9
Turbocharger air chain. TEST 10
Turbocharger control solenoid valve.TEST 11: Apply
TEST 4 of
Technical Note
3419*
Turbocharger.TEST 12: Apply
TEST 7 of
Technical Note
3419*
Diesel fuel conformity check. TEST 13
MR-372-J84-13B050$936.mif
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4CProgram No.: B1 and B2

13B-302
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 1 Low pressure fuel supply system check
NOTESCauses:
Fuel is present in the transparent supply pipe leading to the pump, or large air bubbles
can be seen (small bubbles are permitted).
The engine does not start.
Check the conformity and presence of fuel by running Test 13: Diesel fuel conformity check.
Bleed the fuel supply system with the manual priming pump.
Does the fuel flow correctly when pumped
manually?
NO
Check that there are no leaks in the supply and
return pipes and check that they are in good
condition and installed correctly.
Check the cleanliness of the fuel filter.
Remove the fuel sender and check for leaks.
Check that the fuel sender strainer is not
blocked.
YESLow pressure fuel supply system correct.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_TEST1 / SID304_V45_TEST1 / SID301_V48_TEST1 / SID304_V49_TEST1 / SID304_V4D_TEST1 / SID301_V4C_TEST1

13B-307
MR-372-J84-13B050$936.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Tests13B
TEST 4
CONTINUED 2
Engine starts.
Check that the oil level is correct and that the
engine coolant temperature is greater than 60°C.
Engine running at idle speed.
– Run command AC029 High pressure circuit
sealing test.
The engine will perform 4acceleration cycles
– Refer to parameters PR008 Rail pressure
setpoint and PR038 Rail pressure.
–Does PR038 Rail pressure follow PR008 Rail
pressure setpoint at +
50 bar during the
phase of the 4 acceleration cycles?
Note:
If the rail pressure does not reach the setpoint
there is an injector leak that is too great or the
pressure signal is incorrect.
NO
Test 5
YES
High-pressure
pump and fuel flow
solenoid valve OK.
The engine does not start.
Check that the oil level is correct.
– With the starter activated (3 seconds) consult
parameters PR008 Rail reference pressure
and PR038 Rail pressure.
–Does PR038 Rail pressure follow PR008 Rail
pressure setpoint when the starter is run?
NO
Test 6
YES
Contact the
Techline.
Note:
If the rail reference pressure is not achieved
during starting, there is an injector leak that is
too great or the pressure signal is incorrect.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
B