Mercedes-Benz OM 471 Introduction Into Service Manual page 99

Functions
GF47.00>W>3011HB
ENGINES 471.9 in MODEL 963 with CODE (M5Z) Engine version Euro VI
1 Fuel tank
2 Fuel filter module
3 Fuel pump
3.1 Pressure limiting valve
3.2 Bypass valve
4 Diesel fuel metering device (for
regeneration of diesel particulate
filter (DPF))
5 Fuel system high pressure pump
6 Rail
7 Fuel prefilter
7.1 Wastegate
8 Water separator
9 Fuel filter
10 Fuel cooler
11 Throttle
12 Check valve
13 Fuel accumulator
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)
17 Shutoff valve (in the form of an
elastomer ball, which prevents
draining of the intake duct for
standstill of the engine)
18 Evaporation volume of diesel fuel
metering device (for regeneration of
the diesel particulate filter (DPF))
96
Fuel low pressure circuit function
19 2>stage valve
20 Pressure limiting valve
21 Injection nozzle (for regeneration
of the diesel particulate filter (DPF))
22 Filling valve
23 Pressure preparation flange for the
fuel supply of the diesel fuel metering
device
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
valves
38 Fuel return line from pressure limiting
valve
39 Vent line (from water separator)
40 Vent line (from fuel filter)
41 Fuel return line from pressure
preparation flange for the fuel supply
of the diesel fuel metering device
– This printout will not be recorded by the update service. Status: 09 / 2011 –
20.7.11
W47.00>1038>79
42 Fuel return bypass
43 Fuel feed line from diesel fuel
metering device to injection nozzle
in the nozzle unit for DPF
regeneration
B602 Fuel temperature sensor
B622 Rail pressure sensor
B625 Fuel pressure sensor (inlet)
B626 Fuel pressure sensor (outlet)
B638 Fuel filter module pressure sensor
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
Y613 Cylinder 6 fuel injector
Y628 Fuel metering valve
Y629 Fuel shutoff valve
Y642 Quantity control valve
A Fuel feed/suction side
B Fuel feed (thrust side)
C Fuel high pressure
D Fuel return
E Bleeding