Mercedes-Benz OM 471 Introduction Into Service Manual page 100

3 Fuel pump
4 Diesel fuel metering device (for
regeneration of diesel particulate
filter (DPF))
5 Fuel system high pressure pump
6 Rail
7 Fuel prefilter
8 Water separator
9 Fuel filter
14 Hand>operated delivery pump
15 Shutoff valve in the fuel feed (locked
in open position)
16 Shutoff valve in the fuel return (locked
in open position)
20 Pressure limiting valve
21 Injection nozzle (for regeneration of
the diesel particulate filter (DPF))
22 Filling valve
30 Fuel return line from fuel cooler to
fuel filter module
31 Fuel feed line from fuel filter module
to fuel pump
32 Fuel feed line from fuel pump to fuel
filter module
33 Fuel feed line from fuel filter module
to fuel system high pressure pump
34 Fuel feed line from fuel system high
pressure pump to diesel fuel metering
device
35 Fuel return line from 2>stage valve
36 Fuel return line of pressure booster
37 Fuel return line of nozzle needle
38 Fuel return line from pressure limiting
valve
41 Fuel return line from pressure
preparation flange for the fuel supply
of the diesel fuel metering device
43 Fuel feed line from diesel fuel
metering device to injection nozzle in
the nozzle unit for DPF regeneration
i Introduction of engine OM 471 and exhaust aftertreatment > 09/2011 >
B622 Rail pressure sensor
B625 Fuel pressure sensor (inlet)
B626 Fuel pressure sensor (outlet)
Y608 Cylinder 1 fuel injector
Y609 Cylinder 2 fuel injector
Y610 Cylinder 3 fuel injector
Y611 Cylinder 4 fuel injector
Y612 Cylinder 5 fuel injector
– This printout will not be recorded by the update service. Status: 09 / 2011 –
Functions
W47.00>1039>76
Y613 Cylinder 6 fuel injector
Y628 Fuel metering valve
Y629 Fuel shutoff valve
A Fuel feed/suction side
B Fuel feed (thrust side)
C Fuel high pressure
D Fuel return
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