2011 RENAULT SCENIC air filter

13B-148V4 MR-372-J84-13B000$120.mif
DIESEL INJECTION
Fault finding – Tests13B
DDCR INJECTION
Vdiag No.: 44, 48
TEST 1 Low pressure circuit check
Check the conformity of the low pressure circuit
connections
Are the low pressure circuit connections correct? Carry out the necessary repairs.
Check the condition of the priming bulb, and that it is
working properly.
Look for leaks at the unions.
Are there leaks from the hoses and unions? Carry out the necessary repairs
Check that there are no air bubbles in the diesel fuel. Bleed the low-pressure circuit.
Place a container under the filter.
Disconnect the return hose from the filter and
plug the filter.
Pump using the priming bulb until there is no air
left.
Reconnect the return hose immediately. Are air bubbles present in the low pressure circuit?
Low pressure circuit correct.
NO
YES
YES
NO
YES
NO
DDCR_V44_TEST01/DDCR_V48_TEST01

13B-150V4 MR-372-J84-13B000$120.mif
DIESEL INJECTION
Fault finding – Tests13B
DDCR INJECTION
Vdiag No.: 44, 48
TEST 3 Injector check
Is diesel fuel present around the injectors?Locate the source of the leak and carry out the
necessary repairs.
Control the injectors with the commands
AC005 Cylinder 1 injector,
AC006 Cylinder 2 injector,
AC007 Cylinder 3 injector,
AC008 Cylinder 4 injector.Check the insulation and the continuity of the
electrical circuit.
Run test 9 Diesel filter check.
If test 9 is correct, replace the faulty injectors (MR 364
(Mégane II) or MR 370 (Scénic II), Mechanical, 13B,
Diesel injection, Diesel injector: Removal -
Refitting). Can you hear the valve moving when you are
1metre away from the vehicle?
End of TEST 3.YES
NO
NO
YES
DDCR_V44_TEST03/DDCR_V48_TEST03

13B-151V4 MR-372-J84-13B000$120.mif
DIESEL INJECTION
Fault finding – Tests13B
DDCR INJECTION
Vdiag No.: 44, 48
TEST 5 Inlet circuit check
Check for air leaking in or out.
Is air leaking in or out? Carry out the necessary repairs
Check the condition of the air filter. Replace the air filter (see MR 364 (Mégane II) or
MR 370 (Scénic II), Mechanical, 12A, Fuel
mixture, Air filter, Removal - Refitting). Is the air filter in order?
Check that the inlet manifold is not obstructed
(clogged).
Is the inlet manifold blocked? Clean the inlet manifold.
Air system in good order.
YES
NO
NO
YES
YES
NO
DDCR_V44_TEST05/DDCR_V48_TEST05

13B-160V4 MR-372-J84-13B000$120.mif
DIESEL INJECTION
Fault finding – Tests13B
DDCR INJECTION
Vdiag No.: 44, 48
TEST 11 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, 12B, Turbocharging).
YESNO
YES
NO
YES
A
NO
DDCR_V44_TEST11/DDCR_V48_TEST11

13B-162V4 MR-372-J84-13B000$120.mif
DIESEL INJECTION
Fault finding – Tests13B
DDCR INJECTION
Vdiag No.: 44, 48
TEST 13 Diesel fuel conformity check
WARNING
– During this operation, it is essential to:
– refrain from smoking or bringing incandescent objects close to the work area,
– guard against petrol splashes caused by the residual pressure in the pipes,
– wear safety goggles with side guards,
– wear leaktight gloves (Nitrile type).
IMPORTANT
– To avoid any corrosion or damage, protect the areas on which fuel is likely to run.
– To prevent impurities from entering the circuit, place protective plugs on all fuel circuit components
exposed to the open air.
Preparations:
Weigh an empty 1300 ml plastic cup (part no. 77 11 171 413) with its cover (part no. 77 11 171 416) using
electronic scales such as those used in body paint workshops (for example: PANDA, part no. 77 11 224 995).
Record the weight of the empty plastic cup.
This type of plastic cup is used to prepare paint.
Take a 1 litre fuel sample from the diesel filter outlet (see MR 364 (Mégane II) or 370 (Scénic II), Mechanical,
19C, Tank, Fuel tank: Draining), using a pneumatic transfer pump (part no. 634-200) and place it in the 1300 ml
plastic cup.
Cover the plastic cup with its cover and let it settle for approximately2 minutes.
Is the fuel cloudy or does it
separate into two parts?Presence of water in diesel fuel, the fuel is not compliant.
Drain the fuel circuit, including the tank (see MR 364 (Mégane) or
370 (Scénic), Mechanical, 19C, Tank, Fuel Tank: Draining).
YES
A
NO
DDCR_V44_TEST13/DDCR_V48_TEST13

13B-173
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
ALP4
CONTINUED
Control the injectors using the commands:
– AC005 Cylinder 1 injector,
– AC006 Cylinder 2 injector,
– AC007 Cylinder 3 injector,
– AC008 Cylinder 4 injector.
Can you hear the valve moving when you are
1 metre from the vehicle?Run Test 9 Diesel filter check.
If test 9 is correct, replace only the faulty
injectors (see MR 364 (Mégane II) or MR 370
(Scénic II), Mechanical, 13B, Diesel
injection, Diesel injector: Removal -
Refitting).
Check the high pressure system by running TEST 6 High pressure system 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-182
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
ALP10
CONTINUED
Check the high pressure pump by running
TEST 6 High pressure system check.The vehicle has entered the "Flow capacity
function" program. This function is activated more
easily when: the external temperature is high, the
fuel level in the tank is at 1/4, the vehicle is laden
and if the vehicle speed is high. Is the "Flow capacity function"
programming active (ET563)?
Check the computer:
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) is 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.Check the diesel filter.
Has the diesel fuel filter reached its full mileage?
Replace the diesel filter (see MR 364 (Mégane II)
or MR 370 (Scénic II), Mechanical, 13A, Fuel
supply, Fuel filter: Removal - Refitting).
Contact the Techline if the customer complaint is
still present.
Contact the Techline if the customer complaint
is still present.
A
YES
NO
YES

13B-183
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
OCR*: opening cyclic ratio
ALP11 Loss of power
NOTESSpecial note:
Only consult this customer complaint after a full check with the diagnostic tool.
See explanation for flow capacity function in system operation.
In this case, the lack of power is due to insufficient vacuum for the OCR * setpoint given.
Is the "Flow capacity function" programming
active (ET563)?Check the diesel filter.
Is it close to the replacement mileage?
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.Replace the diesel filter (see MR 364
(Mégane II) or MR 370 (Scénic II),
Mechanical, 13A, Fuel supply, Fuel filter:
Removal - Refitting).
Check the air inlet circuit by running TEST 5 Inlet
circuit check.
Is the engine oil level correct? Top up the oil level.
Is the catalytic converter clogged or damaged?Replace the catalytic converter (see MR
364 (Mégane II) or MR 370 (Scénic II),
19B, Exhaust, Catalytic converter:
Removal - Refitting).
YES
NO
NO
YES
NO
YES
YES
A
NO
DDCR_V44_ALP11/DDCR_V48_ALP11