2011 RENAULT SCENIC engine

13B-194
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V4 MR-372-J84-13B000$140.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
InjectionDDCR
Vdiag No.: 44, 48
ALP17
CONTINUED
Run Test 12 Turbocharger.
Is the turbocharger in order?Carry out the necessary repairs.
Visually check the condition of the engine wiring harness.
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen. If
not, configure the correct injector codes using command SC002 Enter injector codes.
Check the low pressure circuit by running TEST 1 Low pressure circuit check.
Check the injectors by running TEST 3 Injector check.
Check that the computer connectors are properly locked.
Check the condition of the computer connections (bent pin, signs of corrosion, silicone, etc.).
If the connector(s) are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Contact the Techline if the customer complaint is still present.
A
NO
YES

13B-195
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V4 MR-372-J84-13B000$140.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
InjectionDDCR
Vdiag No.: 44, 48
ALP18 Oil leaks from the turbocharger
NOTESBefore analysing this customer complaint, check that there are no faults, and the
conformity (or otherwise) of the parameters and statuses, using the diagnostic
tool.
If the customer complaint is not eliminated, perform the following checks.
Check the area around the turbocharger
Note:
An oil leak does not correspond always to a fault of the turbocharger, the oil leak can arise from the area around
the turbocharger.
Depending on the vehicle type, the best visual access will be either 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 previously removed, refit it before starting the engine (risk of aspirating foreign bodies into 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?
AB
YESNO
DDCR_V44_ALP18/DDCR_V48_ALP18

13B-196
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V4 MR-372-J84-13B000$140.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
InjectionDDCR
Vdiag No.: 44, 48
ALP18
CONTINUED 1
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 was laden with oil from the
engine rebreathing circuit.
Is the suspected interface properly tightened?Tighten the interface or
the pipe concerned.
End of procedure.
Replace the pipe concerned (see MR 385, Mechanical, 12B, Turbocharging).
A
YES
NO
YES

13B-197
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V4 MR-372-J84-13B000$140.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
InjectionDDCR
Vdiag No.: 44, 48
ALP18
CONTINUED 2
Is an oil leak present only at the casing of the compressor section?
The turbocharger is not faulty. The oil leak is from another engine component and the oil is flowing
onto the turbocharger.
End of procedure.
Is an oil leak present at the turbocharger oil supply inlet or outlet?
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?Tighten the pipe concerned.
End of procedure.
Replace only the seal or the pipe of the section
concerned (see MR 364 (Mégane II) or 370 (Scénic
II), Mechanical, 12B, Turbocharging).
B
NO
YESNO
YES
DNO
YES
C

13B-198
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V4 MR-372-J84-13B000$140.mif
DIESEL INJECTION
Fault finding – Fault finding charts13B
InjectionDDCR
Vdiag No.: 44, 48
ALP18
CONTINUED 3
Is an oil leak present at the interfaces of the turbine casing and the exhaust pipes?
The turbocharger is not faulty. There is probably another fault in
the engine.
Mark the component that is the source of the leak and refer to the
repair manual (see MR 364 (Mégane II) or 370 (Scénic II), 10A
Engine and peripherals).End of procedure.
CD
YESNO