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Ford focus titanium 2l diesel auto

chris rex
chris rex
in General Ford Related Discussions

Featured Replies

Hi, I've had this car,  2011 focus titanium,  2l diesel for 3  months and it's been ok..

Just recently got a bit sluggish to start and then after 3 increasingly worse start ups, then just fails to start or fire up at all

Engine turns over ok and diesel is getting to Injectors.

There may be traces of ad blue in the diesel, but very little.

Would this matter?

Any ideas people 

  • Quote


    As far as I know, a 2011 diesel Focus never used Adblue. How have you got Adblue in the diesel fuel? 

    and if you have Adblue mixed in with the diesel then it does matter, the car won't start. 

  • Quote

    As long as it really is just 'traces' of AdBlu, that should get caught in the watertrap in the fuel filter.  Has the filter been replaced or drained since the incident?

  • Quote
    • Author

    It was an emptied 10l adblue bottle filled with diesel and i jave not changed the filter.

    I poured a can of fresh diesel in it and started nicely but after leaving it running for 10 minutes and switching off, gets sluggish and lumpy to start again and after a few lumpy start ups fails to start again

  • Quote
    • Author

    It was an emptied 10l adblue bottle filled with diesel and i have not changed the filter.

    I poured a can of fresh diesel in it and started nicely but after leaving it running for 10 minutes and switching off, gets sluggish and lumpy to start again and after a few lumpy start ups fails to start again

  • Quote

    Drain the contaminated fuel, change the fuel filter

  • Quote

    You can bypass the LP side of the system and fit a pipe from a can of diesel, through a hand pump, onto the HP pump.  (This diesel must be 100% uncontaminated as bypassing the filter).  That will confirm if the problem is the fuel/filter or whether it's a separate issue.

  • Quote
    • Thanks 1

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    The "Digestive"

    • The Digestive Forum Roundup (24th May - 31st May 2026)

      Steve ·
      The Digestive Forum Roundup (24th May - 31st May 2026) We hope this email finds you well and enjoying your week. As always, our forum has been buzzing with activity, so we’ve compiled the highlights for you. Plenty of interesting discussions are taking place, especially around the Ford Focus and Fiesta models. Starting off with the Focus, many members have been discussing issues with the Emergency Call System, particularly in the Mk4 model. PLB raised concerns about persistent malfunctions, a se
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