7 Series E65 740d (M67) SAL
If "actual rail pressure value" >
"specified rail pressure value", read
out fault memory. Check stored fault
messages of DDE control units.
Rectify faults. Now clear the fault
memory.
H.P. pump and pressure regulator
Check H.P. pump and pressure
regulator,
refer to 13 51 542.
Actuate starter and read off "actual
rail pressure value".
If "actual rail pressure value" >
"specified rail pressure value", check
injectors.
If "actual rail pressure value" is too
low, check pressure regulator.
-
Pressure regulator
Remove pressure regulator,
refer to 13 53 570.
Replace pressure regulator,
refer to 13 53 570.
Actuate starter and read off "actual
rail pressure value".
If "actual rail pressure value" is too
low, check H.P. pump.
If "actual rail pressure value" >
"specified rail pressure value", read
out fault memory of DDE control
units. Check stored fault messages.
Rectify faults. Now clear the fault
memory.
-
H.P. pump
-
Remove H.P. pump.
refer to 13 51 004.
-
Read out fault memories of
DDE control units. Check stored
fault messages. Rectify faults.
Now clear the fault memory.
Remove and install/replace H.P.
pump,
refer to 13 51 004.
Injectors
-
Connect all pressure lines to
fuel distributor.
-
Connect pressure sensor plug.
-
Check injectors,
refer to 13 51 544.
Remove and install injectors,
refer to 13 53 315.
RA Troubleshooting on Common Rail System at excessively low pressure
BMW AG - TIS
09.02.2013 15:34
Issue status (12/2007) Valid only until next DVD is issued
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