Mercedes e350 3.0 cdi W212
07-19-2022, 12:04 AM
#1
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Mercedes e350 3.0 cdi W212
Hello. My car goes into limp mode every morning. It is fixed after turning the car off and on. When i check in service nothing code or error fault. It worries me. İ want note that engine is OM 642. Has something like this happened to anyone?
07-19-2022, 02:01 AM
#2
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MY'14 W212 M276 3.5NA @55kMi
diesel limp mode
Have you checked fuel pressure regulator?
Filter is in good shape right?
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Vugar Mehdi (07-22-2022)
07-19-2022, 02:26 PM
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MY'14 W212 M276 3.5NA @55kMi
07-22-2022, 09:46 AM
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07-22-2022, 09:52 AM
#6
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After fixing problem fuel pressure regulator this problem happend. I saw that when i start car every morning after 2 km everyithing is ok. Now turning off dont helps to exit limp mode.
07-22-2022, 12:31 PM
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1922 Ford Model T / no OBD
Observe both fuel pressures when that happen.
How old is fuel filter?
You might take it to diesel section for more exposure from people who drive diesels.
How old is fuel filter?
You might take it to diesel section for more exposure from people who drive diesels.
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07-24-2022, 12:26 AM
#8
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Hi. This happens when the engine is cold. I changed one fuel pressures yesterday. But the problem continues. I think I should change the fuel filter. Fuel filter has got regulator. İ think it change without regulator
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08-08-2022, 11:54 AM
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'71 Pinto
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08-09-2022, 02:07 PM
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2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
Wow.... I did not know this diesel have back pressure sensor
https://f01.justanswer.com/BrennanB3...ATA_Repair.pdf
Task
The exhaust back pressure sensor determines the exhaust back pressure upstream of the turbocharger.
The pressure value is used by the CDI control unit (N3/9) to monitor the diesel particulate filter (DPF) fill level and for protection of the turbocharger and engine.
B60 Exhaust back pressure sensor
The exhaust gas back pressure deforms a membrane, which affects a potentiometer.
This alters the resistance value of the potentiometer and influences the signal voltage, which is used as information regarding the exhaust gas back pressure for the CDI control unit.
Damn, membrane at such temperature duty ?
https://f01.justanswer.com/BrennanB3...ATA_Repair.pdf
Task
The exhaust back pressure sensor determines the exhaust back pressure upstream of the turbocharger.
The pressure value is used by the CDI control unit (N3/9) to monitor the diesel particulate filter (DPF) fill level and for protection of the turbocharger and engine.
B60 Exhaust back pressure sensor
The exhaust gas back pressure deforms a membrane, which affects a potentiometer.
This alters the resistance value of the potentiometer and influences the signal voltage, which is used as information regarding the exhaust gas back pressure for the CDI control unit.
Damn, membrane at such temperature duty ?
