Om642 11C300 B4/6 rail pressure sensor
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W164 350 bluetec 2011
Om642 11C300 B4/6 rail pressure sensor
Hello
i have ml 350 bluetec 2011 and i have the error code
11C300 The upper limit value of component B4/6 rail pressure sensor has been exceeded. I have already replaced the pressure sensor injectors fuel pump but nothing.
fuel pump crack at 1500 rmp
help please
i have ml 350 bluetec 2011 and i have the error code
11C300 The upper limit value of component B4/6 rail pressure sensor has been exceeded. I have already replaced the pressure sensor injectors fuel pump but nothing.
fuel pump crack at 1500 rmp
help please
Thread Starter
Newbie
Joined: Oct 2021
Posts: 11
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W164 350 bluetec 2011
my problem is that my car has check engine light on and my high fuel pump start rattling when i try to accelerate.
also when i pull out the cable from the rail sensor everything is ok the rattling noise stop .
this car is making me crazy
also when i pull out the cable from the rail sensor everything is ok the rattling noise stop .
this car is making me crazy
Last edited by Delens; Oct 18, 2021 at 03:56 PM.
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Joined: Jan 2013
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W211 E320 Diesel OM642
I would first test the high pressure pump output with mb star. Its a short test, rpms are increased till certain pressure and the car runs for about a min and shows how steady the pressure output is.
MBWorld Fanatic!
Joined: Jan 2009
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From: V E G A S
1922 Ford Model T / no OBD
Regulating the rail pressure is the job of pressure regulator.
Don't see it addressed?
Got to love members who drop couple grands in parts, before asking for advice.
Don't see it addressed?
Got to love members who drop couple grands in parts, before asking for advice.
Thread Starter
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Joined: Oct 2021
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W164 350 bluetec 2011
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MBWorld Fanatic!
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From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
Why do people tend to blame the sensor? The sensor is telling you that there is a problem with fuel pressure. We say "don't shoot the messenger!"
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Thread Starter
Newbie
Joined: Oct 2021
Posts: 11
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W164 350 bluetec 2011
MBWorld Fanatic!
Joined: Jan 2009
Posts: 9,224
Likes: 1,798
From: V E G A S
1922 Ford Model T / no OBD
Judging from the screen language (Italian ?) - English is not OP 1st language and I see now that some misunderstanding might be due to that.
1st the test calls for full engine operating temperature, what was not met during the test.
Now I see the fuel pressure is too low, when "exceeded" in original post suggest it as too high.
Than as Honda suggest - focus on high pressure test, not on general test.
1st the test calls for full engine operating temperature, what was not met during the test.
Now I see the fuel pressure is too low, when "exceeded" in original post suggest it as too high.
Than as Honda suggest - focus on high pressure test, not on general test.
Last edited by kajtek1; Oct 26, 2021 at 03:07 PM.
Thread Starter
Newbie
Joined: Oct 2021
Posts: 11
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W164 350 bluetec 2011
Judging from the screen language (Italian ?) - English is not OP 1st language and I see now that some misunderstanding might be due to that.
1st the test calls for full engine operating temperature, what was not met during the test.
Now I see the fuel pressure is too low, when "exceeded" in original post suggest it as too high.
Than as Honda suggest - focus on high pressure test, not on general test.
1st the test calls for full engine operating temperature, what was not met during the test.
Now I see the fuel pressure is too low, when "exceeded" in original post suggest it as too high.
Than as Honda suggest - focus on high pressure test, not on general test.
i will do the HP pump test and share here the results
thanks a lot
