Page 175 of 204

13B-175
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP 13 Excessive consumption
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Check that the fuel tank is correctly filled and that the appropriate fuel is used.
Apply TEST 13 Diesel fuel conformity check.
Check the levels of engine oil and coolant.Replace the fuel temperature sensor (see MR
388 (Logan/Sandero), MR 423 (Thalia 2/Symbol
2), MR 451 (Duster) or MR 374 (Kangoo VLL),
Mechanical, 13B, Diesel injection, Rail pressure
sensor: Removal - Refitting). Is the fuel temperature sensor leaking?
Check the low pressure circuit by running TEST 1 Low pressure circuit check.
Visually check that there are no leakages on the high pressure circuit by running TEST 7 High pressure circuit
sealing check.
Check the air inlet circuit by running TEST 5 Inlet circuit check.
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
YES
NO
A
DCM1.2_V08_ALP13
Page 177 of 204

13B-177
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP14 Overspeed when releasing accelerator or changing gear
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Check that there are no obstacles that might impede the accelerator pedal travel (carpet, hard point, etc.).
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
Visually check the condition of the engine wiring harness.
Is the clutch clearance set correctly?Carry out the necessary
repairs.
Check that the engine has not sucked up its oil (engine racing).
Check that the turbocharger is working properly.
Run TEST 11 Air line at the turbocharger.
Run TEST 10 Turbocharger solenoid valve check.
Run TEST 12 Turbocharger.
Is the turbocharger in order?Carry out the necessary
repairs.
NO
YES
NO
A
YES
DCM1.2_V08_ALP14
Page 180 of 204

13B-180
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP16 Engine rattling, noisy engine, turbocharger noise
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
If the noise is coming from the turbocharger, apply the Technical Note 5164A, Fault finding of noises.
Note:
Pay close attention to faulty components that might result in unjustified replacement of the turbocharger. For
example, whistling does not necessarily indicate damage to the turbocharger (this could be coming from the
exhaust, the timing, the gearbox, etc.).
Check that the fuel tank is correctly filled and that the fuel is correct by running TEST 13 Diesel fuel conformity
check.
Check the levels of engine oil and coolant.
Is the compression in order? Carry out the necessary repairs.
Check the electrical conformity of the heater plugs (the resistance value of the heater plug must be less than
2).
NO
YES
A
DCM1.2_V08_ALP16
Page 182 of 204

13B-182
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP17 Blue, white or black smoke
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Check that the fuel tank is correctly filled and that the appropriate fuel is used.
Apply TEST 13 Diesel fuel conformity check.
Check the levels of engine oil and coolant.
Is the compression in order? Carry out the necessary repairs
Check the electrical conformity of the heater plugs (the resistance of the heater plug must be less than 2 ).
Is the catalytic converter clogged or damaged?Replace the catalytic converter (see MR 388
(Logan/Sandero), MR 451 (Duster), MR 423
(Thalia 2/Symbol 2) or MR 374 (Kangoo VLL),
Mechanical, 19B, Exhaust, Catalytic
converter: Removal - Refitting).
Check the air inlet circuit by running TEST 5 Inlet circuit check.
NO
YES
YES
NO
A
DCM1.2_V08_ALP17
Page 184 of 204

13B-184
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP18 Blue, black or white smoke when accelerating.
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Check that the fuel tank is correctly filled and that the appropriate fuel is used.
Apply TEST 13 Diesel fuel conformity check.
Check the levels of engine oil and coolant.
Check that the engine has not sucked up its oil (engine racing).
Is the compression in order? Carry out the necessary repairs.
Check the electrical conformity of the heater plugs (the resistance of the heater plug must be less than 2 ).
Is the catalytic converter clogged or damaged?Replace the catalytic converter (see MR 388
(Logan/Sandero), MR 451 (Duster), MR 423
(Thalia 2/Symbol 2) or MR 374 (Kangoo VLL),
Mechanical, 19B, Exhaust, Catalytic converter:
Removal - Refitting).
Check the air inlet circuit by running TEST 5 Inlet circuit check.
NO
YES
YES
NO
A
DCM1.2_V08_ALP18
Page 204 of 204
13B-204V1 MR-376-X76-13B000$160.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
TEST 13
CONTINUED 2
End of TEST 13The fuel is not correct.
If the fuel weight is less than the minimum value then there is petrol in the
diesel fuel.
If the fuel weight is greater than the minimum value then there is oil in the
diesel fuel.
Drain the fuel system, including the tank (see MR 388 (Logan/Sandero),
MR 451 (Duster), MR 423 (Thalia 2/Symbol 2) or MR 374 (Kangoo
VLL), Mechanical, 19C, Tank, Draining the fuel tank).
Note:
If the weight measured reaches the limit values, the measurement can be performed with a 2230 ml plastic cup
(part no. 77 11 171 414) and its cover (part no. 77 11 171 417):
– Carry out a quick test drive in order to mix the fuel, then remove 2 l of fuel.
– Perform the test again and check the results by multiplying the limit values by 2.
Contact the Techline if you have doubts or problems with the customer.
BC
YESNO