2011 RENAULT SCENIC filter

13B-387
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP4
CONTINUED
is the engine running on all cylinders?
Check the operation of the injectors, run test 10 Poor injector operation.
If the fault is still present
Check the conformity of the accelerator pedal position sensor, the brake pedal sensor, the atmospheric pressure
sensor, the exhaust gas recirculation valve, and the damper valve (see Interpretation of statuses and
Interpretation of parameters).
Check the consistency of the signal for the air flowmeter, the engine coolant temperature sensor, the fuel
temperature sensor and the engine speed.
Check the connectors, the continuity, and the absence of interference resistance of the air flowmeter (apply DF056
Air flow sensor circuit), the engine coolant temperature sensor (apply DF001 Coolant temperature circuit), the
fuel temperature sensor (apply DF098 Fuel temperature sensor circuit), and the engine speed (apply DF195
Camshaft sensor - engine speed consistency).
Check:
– That the diesel filter is not clogged.
– That there are no leaks on the high and low pressure diesel circuits: run test 3 Low pressure circuit check.
– The connection of the oil vapour rebreathing circuit.
– The rail pressure regulator (MPROP) (jammed - stuck), apply the interpretation of command AC011 Rail
pressure regulator.
Check the engine timing (and the position of the high pressure pump sprocket). See the procedure in the
Workshop Repair Manual if necessary.
Test the high pressure fuel circuit:
Run the scenario SC035 High pressure fuel circuit fault finding (see Interpretation of commands).
If the fault is still present, contact the techline.
A
NO
YES
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-389
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP6 External leaks from the fuel circuit
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.
IMPORTANT
Please observe the cleanliness guidelines and safety advice.
Procedure for checking for an external leak on the fuel circuit:
Clean away traces of grease with clean thinner and wipe the part or parts concerned with cleaning cloths.
Start the engine and increase the engine temperature until the diesel fuel reaches 40/50°C.
Stop the engine and check for traces of grease on the part or parts concerned.
If this is the case, replace the part or parts concerned.
Bleed the fuel circuit and continue the checks.
Does the priming bulb show traces of grease?
(Visual and tactile inspections)
Check the assembly of the components and the
condition of the seal at the union of the two
components, if the leak is at the seal.
Replace the part or the parts concerned.
Bleed the fuel circuit and continue the checks.
Check the counter pressure valve located on the
fuel return line, after the injectors. Does the diesel filter show traces of grease?
(Visual and tactile inspections)
Do the fuel return pipes show traces of grease?
(Visual and tactile inspections)
YES
NO
YES
NO
YES
A
EDC16C36_V44_ALP06/EDC16C36_V4C_ALP06/EDC16C36_V48_ALP06/EDC16C36_V50_ALP06/EDC16C36_V54_ALP06/
EDC16C36_V58_ALP06EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-393
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP8 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?
YESNO
AB
EDC16C36_V44_ALP08/EDC16C36_V4C_ALP08/EDC16C36_V48_ALP08/EDC16C36_V50_ALP08/EDC16C36_V54_ALP08/
EDC16C36_V58_ALP08EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-398
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP10 Exhaust fumes
Run test 2 Air line at the turbocharger.
Run test 6: Turbocharger control solenoid valve check.
Is the vehicle equipped with a particle filter?
Start the engine and warm it up at idle speed for 10 min.
IMPORTANT
If the air filter was previously removed, refit it before starting the
engine (risk of aspirating foreign bodies into the air inlet circuit).
Perform several rapid and brief accelerations under no load.
Note:
The presence of smoke is often normal.
It is the quantity, density, colour and persistence that are deciding
factors.
Is the exhaust outlet producing abnormal smoke?Perform the fault finding of the
"particle filter" function, refer to the
TESTS or corresponding ALP
Refer to test 7 Turbocharger.The turbocharger is not faulty. There is probably another fault
in the engine. Consult the TEST or the corresponding ALP
NOYES
YESNO
EDC16C36_V44_ALP10/EDC16C36_V4C_ALP10/EDC16C36_V48_ALP10/EDC16C36_V50_ALP10/EDC16C36_V54_ALP10/
EDC16C36_V58_ALP10EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-399
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP11 Particle filter warning light comes on too often
NOTESThis ALP is specific to Vdiag48.
Before dealing with this customer complaint, check that there are no faults
except DF312 Speed request, and check the conformity (or otherwise) of the
"parameters" and "statuses" using the diagnostic tool. Deal with the other faults
first.
If the customer complaint is not eliminated, perform the following checks.
Have the last 10 regeneration attempts failed?
Is the mileage of PR412 Mileage of last successful
regeneration less than all the parameters of group 2? (PR794
to PR803 Stored regeneration failure no. 1 to no. 10)Is at least one status in group 1
= STATUS4?
Symptom not
confirmed
Are all the regeneration failures linked to engine cut-off?
See parameter ET706 Stored engine status no.1 to ET715
Stored engine status no.10 (E.g. ET706 STOPPED)
Check the exhaust pipe for leaks or blockage. Repair if
necessary.
Perform After-Sales regeneration if it was not performed
previously (see Interpretation of commands, SC017 Particle
filter regeneration)
NO
YES
NOYES
A
YESOutput
1
NO
Output
2
EDC16C36_V48_ALP11/EDC16C36_V58_ALP11EDC16 C36
Program No.: 91
Vdiag No.: 48, 58

13B-402
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP11
CONTINUED 3
– Check the consistency between the IMA codes read on the CLIP diagnostic tool and the codes engraved on
the injector bodies,
– Check that the particle filter differential pressure sensor is correctly positioned and connected (see MR 364
(Megane II) or 370 (Scenic II), Mechanical, 19B Exhaust, Particle filter pressure sensor: Removal -
Refitting),
– Check the exhaust pipe see (Test1 Exhaust pipe check),
– Check the air inlet circuit see (Test 4 Turbocharged air inlet circuit check),
– Check the air flowmeter, (see Test 5 Air flowmeter),
– Check the turbocharger, (see Test 6 Turbocharger control solenoid valve test and Test 7 Turbocharger),
– Check the injectors, (see Test 10 Poor injector operation),
– Check the cylinder compressions.
If the fault has not been located and the customer complaint is still present, contact the Techline.
A
EDC16 C36
Program No.: 91
Vdiag No.: 48, 58

13B-403
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
Analysis of output for ALP11 Particle filter warning light comes on too frequently
ALP11
CONTINUED 4
ALP
output no.ALP 11 output
conditionsCause - type of drivingRegeneration
frequencyWhat to tell the
customer?
Output 1The last 10
regeneration attempts
have failed due to the
engine cutting out.Regeneration failures
caused by engine cut-
off.No regeneration
frequency
analysis.Explain to the customer
the need to wait until the
end of regeneration
(warning light goes out)
before switching off the
engine.
Output 2The last 10
regeneration attempts
have failed, but not
because of the engine
cutting out.Unsuitable driving
conditionsNo regeneration
frequency
analysis.Explain to the customer
the driving criteria for
when the warning light
comes on.
Output 3After successful
regenerations stored in
the memory, the
warning light did not
come on. An interval
cannot be calculated.Since the last successful
stored regenerations, the
driving conditions have
not allowed the warning
light to come on.Should be normal Vehicle correct
Output 4The interval between a
successful
regeneration and the
particle filter warning
light coming on is
correct (above the
lowest possible
values). The system
does not have any
irregular components.Unfavourable driving
(urban zone, underspeed,
etc.)Normal Vehicle correct
EDC16 C36
Program No.: 91
Vdiag No.: 48, 58

13B-406V9 MR-372-J84-13B450$200.mif
DIESEL INJECTION
Fault finding – Tests13B
TEST2 Turbocharger air chain
Check for the air filter
Check the replacement interval of the air filter on the maintenance booklet.
Compare the part numbers of the air filter fitted to the vehicle and that of the air filter recommended by the
manufacturer.
Check the air filter direction of fitting.
Is the air filter fitted to the vehicle correct?
Check the condition of the air filter
Visually inspect the condition of the filtering section of the air
filter.
Is either the air filter or its seal damaged?
Is the air filter fouled (does it contain a lot of impurities)?Replace the air filter (see MR 364
(Mégane II) or 370 (Scénic II),
Mechanical, 12A, Fuel mixture, Air
filter, Removal - Refitting).
Low pressure circuit check
Note:
Depending on the vehicle type, the best visual access will be
either from above or from below.
Visually inspect the condition of the following components:
– fresh air inlet scoop on the front panel of the vehicle,
– air inlet pipe to the air filter,
– air pipe of the filter until the compressor inlet,
– mountings of the air flowmeter.
Is one of these components incorrect (disconnected,
cut, bent, pierced or kinked pipes)?Replace the defective parts (see MR
364 (Mégane II) or 370 (Scénic II),
Mechanical systems, 12B,
Turbocharging).
YESNO
YES
NO
YES
NO
A
EDC16C36_V44_TEST2/EDC16C36_V4C_TEST2/EDC16C36_V48_TEST2/EDC16C36_V50_TEST2//EDC16C36_V54_TEST2/
EDC16C36_V58_TEST2
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58