‘Soot’ on fuel filter

[StuCollier]

Hi all,

Been suffering from really poor running recently, jittery under load and rough idle. 2012 220 2.1

A code reader has reported ‘P263509’ fuel flow rate of pump A is too low.

Taken a look at the fuel filter, and it has what appears to be soot on top? I’m planning on changing the filter, but has anyone experienced this?

Thanks all
Stu

 

[onefortheroad]

Looks more like the engine cover has been rubbing on the fuel heater .

 

[StuCollier]

Looks more like the engine cover has been rubbing on the fuel heater .

Doh! You could be onto something!! Cheers!

 

[star]

^ this. Needs new cover rubbers.

 

[mioba]

the soot is rubber dust due to the above. MB fuel filter interval in diesels is too long.
Get a new filter MANN or MB. I bet your current has the date stamp from MY of the car.

good luck and post back

 

[StuCollier]

the soot is rubber dust due to the above. MB fuel filter interval in diesels is too long.
Get a new filter MANN or MB. I bet your current has the date stamp from MY of the car.

good luck and post back

Hi - New filter fitted this morning. Diag error cleared itself, and (unsurprisingly) engine appears to be running a lot smoother. Will take it out for a longer run tomorrow. Thanks for the responses.