Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
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
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
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 388
(Logan/Sandero), MR 423
(Thalia 2/Symbol 2), MR 451
(Duster) or MR 374 (Kangoo
VLL), Mechanical, 12A, Fuel
mixture, Air filter: Removal -
Low pressure circuit check
Depending on the vehicle type, the best visual access will
be either from above or from below.
Visually inspect the condition of the following
– 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 faulty parts (see MR
388 (Logan/Sandero), MR 451
(Duster), MR 423 (Thalia 2/
Symbol 2) or MR 374 (Kangoo
VLL), Mechanical, 12B,