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mercedes E212 control unit fuel pump has malfunction
31-01-2022, 02:33 AM, (This post was last modified: 31-01-2022, 02:33 AM by BabeH.)
Post: #10
RE: mercedes E212 control unit fuel pump has malfunction
Cranking too long to start, with those faults,
check voltage and starter first !

However ECU fail will also trigger some faults and even difficult or fail to start engine.
If ECU fail, most of the time it won't tell "I am dying" but it will trigger sensors fail and communication errors etc.
So if you have spare ECU on hand it is easier to swap a working ECU and test before replace everything.
I saw many case like that.


Messages In This Thread
RE: mercedes E212 control unit fuel pump has malfunction - by BabeH - 31-01-2022, 02:33 AM

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