2012 RENAULT SCENIC air filter

13B-478
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$170.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP4
CONTINUED 2
Perform the following road test (looking for a loss of power when accelerating under full load):
– in the highest gear ratio, accelerate fully,
– lift your foot off the accelerator pedal completely for at least 2 seconds,
– accelerate fully again,
– release the accelerator pedal completely,
– accelerate slightly.
If the loss of power was not noted during slight acceleration and if there was a loss of engine power during each
acceleration at full load, replace the diesel fuel injector return rail and its overpressure valve (see MR364
(Mégane II ph2), MR370 (Scénic II ph2), MR 395 (Laguna II ph2), 402 (Vel Satis ph2), 405 (Espace IV ph2)
Mechanical, 13B, Diesel injection, Diesel injector fuel return rail: Removal - Refitting).
Check the connection and positioning of the differential pressure sensor (see MR 395 (Laguna II ph2), 402 (Vel
Satis Ph2), 405 (Espace IV ph2), 364 (Mégane II ph2), 370 (Scénic II ph2) Mechanical, 19B, Exhaust, Particle
filter pressure sensor: Removal - Refitting).
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
parameters).
Check the consistency of the signal from the air flowmeter, the engine coolant temperature sensor, the fuel
temperature sensor and the engine speed sensor.
Check the connections, the continuity and the absence of interference resistance of the following components:
– the air flowmeter (apply DF056 Air flow sensor circuit)
– the engine coolant temperature sensor (apply DF001 Coolant temperature sensor circuit)
– the fuel temperature sensor (apply DF098 Fuel temperature sensor circuit)
– the engine speed sensor (apply DF195 Engine speed/camshaft sensor consistency).
A
YES
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-479
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$170.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP4
CONTINUED 3
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.
–Test the high pressure fuel circuit:
Run scenario SC035 High pressure fuel circuit fault finding (see Interpretation of commands).
Continue by checking the following:
– The connection of the oil vapour rebreathing circuit.
– The pump pressure regulator (MPROP), (jamming - sticking); apply the interpretation of command AC226 Pump
pressure regulator.
– The rail pressure regulator (DRV), (jamming - sticking); apply the interpretation of command AC225 Rail
pressure regulator.
– Check the engine timing (and the position of the high pressure pump sprocket).
– Check the engine compressions: use a compression gauge, M9R hose end piece, part no. Mot. 1772 and apply
command VP036 Fuel supply inhibition (see Interpretation of commands).
If the fault is still present, contact the techline.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-481
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$170.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP6 Fuel system leaks
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.
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
NO
A
EDC16CP33_V18_ALP06 / EDC16CP33_V1C_ALP06 / EDC16CP33_V54_ALP06 / EDC16CP33_V20_ALP06 / EDC16CP33_V58_ALP06 /
EDC16CP33_V5C_ALP06 / EDC16CP33_V24_ALP06 / EDC16CP33_V04_ALP06 / EDC16CP33_V08_ALP06 / EDC16CP33_V44_ALP06 /
EDC16CP33_V4C_ALP06 / EDC16CP33_V34_ALP06 / EDC16CP33_V38_ALP06 / EDC16CP33_V74_ALP06 / EDC16CP33_V28_ALP06 /
EDC16CP33_V62_ALP06 / EDC16CP33_V26_ALP06 / EDC16CP33_V60_ALP06
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-485
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$170.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
IMA*: Individual injector correction
ALP7
CONTINUED
– Check the engine timing (and the
position of the high pressure pump
sprocket).
–Apply part B of Test 10 Poor injector
operation.
Check the lower engine:
– Check the engine mountings.
If the checks are correct, contact the
Techline.If fault DF308 Clogged particle filter is present,
consult the interpretation of DF308.
Run command SC036 Reinitialise programming and
select After particle filter replacement (see
Interpretation of commands).
A
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74

13B-487
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$170.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP9 PARTICLE FILTER WARNING LIGHT COMES ON TOO OFTEN
NOTESBefore dealing with this customer complaint, check that there are no faults except
DF312 Speed request, and 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?Are all the regeneration failures
linked to engine cut-off?
See group parameter (ET706
Stored engine status no. 1 to
ET715 Stored engine status no.
10)
(e.g. ET706 STOPPED)Output 1 Is the distance of PR412 Distance 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 for group
1 = STATUS4?Check the exhaust pipe for leaks
or blockage. Repair if necessary.
Carry out an After-Sales
regeneration if not already
performed. To do this, see SC017
Particle filter regeneration in
Interpretation of commands.Output 2
YES
YES
NONO
YES
A
NO
B
EDC16CP33_V18_ALP09 / EDC16CP33_V1C_ALP09 / EDC16CP33_V54_ALP09 / EDC16CP33_V20_ALP09 / EDC16CP33_V58_ALP09 /
EDC16CP33_V5C_ALP09 / EDC16CP33_V24_ALP09 / EDC16CP33_V28_ALP09 / EDC16CP33_V62_ALP09 / EDC16CP33_V26_ALP09 /
EDC16CP33_V60_ALP09
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62

13B-490
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$170.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
IMA*: Individual injector correction
ALP9
CONTINUED 3
– Check the consistency between the IMA* codes entered and the codes engraved on the injector bodies.
– Check that the particle filter differential pressure sensor is correctly positioned and connected (see MR 395, 402,
405, 364 or 370 Mechanical, 19B Exhaust, Particle filter pressure sensor: Removal - Refitting),
– Check the exhaust pipe (see TEST1 Exhaust pipe check),
– Check the air inlet circuit (see TEST4 Turbocharged air inlet circuit check),
– Check the air flowmeter (see TEST5 Air flowmeter),
– Check the turbocharger (see TEST7 Variable geometry turbocharger check),
– Check the injectors (see TEST10 Poor injector operation),
– Check the cylinder compressions.
If the fault has not been located and the customer complaint is still present, contact the Techline.
YES
E
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62

13B-491
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V12 MR-372-J84-13B300$170.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
Analysis of output for ALP9.
ALP9
CONTINUED 4
ALP
output no.Output conditions for
ALP9Cause - 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
conditions.No regeneration
frequency analysis.Explain again 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. No
interval can 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
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62

13B-493V12 MR-372-J84-13B300$180.mif
DIESEL INJECTION
Fault finding – Test13B
TEST1 Exhaust system check
Engine stopped: Check that the silencer outlet is
not blocked. Repair or replace the silencer, if
necessary.
Check the seal of the exhaust manifold on the
contact surface between the turbocharger and the
exhaust manifold.
Is the seal in order?Repair or replace the faulty part.
Loosen the catalytic converter on the turbocharger
side.
Place a wooden block between the two parts.
Start the vehicle and check if the engine runs
better.
Is the engine running normally?The exhaust system is not the cause of the fault;
repeat the engine fault finding (see Customer
complaints - Fault finding chart).
Retighten the catalytic converter.
Loosen or separate the particle filter on the
catalytic converter side. Place a wooden block
between the two parts if necessary.
Start the vehicle and check if the engine runs
better.
Is the engine running normally?Replace the catalytic converter.
NO
YES
NO
YES
NO
YES
A
EDC16CP33_V18_TEST1 / EDC16CP33_V1C_TEST1 / EDC16CP33_V54_TEST1 / EDC16CP33_V20_TEST1 / EDC16CP33_V58_TEST1 /
EDC16CP33_V5C_TEST1 / EDC16CP33_V24_TEST1 / EDC16CP33_V04_TEST1 / EDC16CP33_V08_TEST1 / EDC16CP33_V44_TEST1 /
EDC16CP33_V4C_TEST1 / EDC16CP33_V34_TEST1 / EDC16CP33_V38_TEST1 / EDC16CP33_V74_TEST1 / EDC16CP33_V28_TEST1 /
EDC16CP33_V62_TEST1 / EDC16CP33_V26_TEST1 / EDC16CP33_V60_TEST1
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74