Specifications

13B-7
V1
MR-453-X79-13B000$020.mif
13B
DCM 1.2 injection
Program No.: 4C
Vdiag No.: 08
I - RISKS ASSOCIATED WITH CONTAMINATION
The high pressure direct injection system is highly sensitive to contamination. The risks caused by the introduction
of contamination are:
– damage to or destruction of the high pressure injection system,
–a component seizing up,
–a component losing its sealing.
All After-Sales operations must be performed under very clean conditions. This means that no impurities
(particles a few microns in size) should have penetrated the system during dismantling.
The cleanliness guidelines must be applied from the filter through to the injectors.
What are the sources of contamination?
– metal or plastic chips,
– paint,
– fibres:
– from cardboard,
– from brushes,
– from paper,
– from clothing,
– from cloths,
–foreign bodies such as hair,
–the ambient atmosphere,
–etc.
IMPORTANT
Cleaning the engine using a high pressure washer is prohibited because of the risk of damaging connections. In
addition, moisture may collect in the connectors and create faults in the electrical connections.
DIESEL INJECTION
Fault finding – Cleanliness guidelines