1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Welcome To LandyZone!

    LandyZone is the biggest Land Rover forum on the net. We have plenty of very knowledgable members so if you have any questions about your Land Rover or just want to connect with other Landy owners, you're in the right place.

    Registering is free and easy just click here, we hope to see you on the forums soon!

DPF problems for a newbie

Discussion in 'Range Rover' started by Michiesweetcakes, Apr 13, 2021.

< Previous Thread | Next Thread >
  1. Rubberknees

    Rubberknees Well-Known Member Full Member

    Joined:
    Mar 25, 2019
    Posts:
    1,645
    Likes Received:
    1,723
    Location:
    Rotherham
    Come man ffs spit it out:D
     
    kermit_rr and Mark Piercy like this.
  2. pwood999

    pwood999 Well-Known Member Full Member

    Joined:
    Nov 6, 2006
    Posts:
    1,468
    Likes Received:
    589
    Location:
    Near Heathrow.
    How do you normally drive & what typical distance ? DPF need regular blast up the motorway for 30-40 miles to get the cleaning process to work. Diagnostics should show the cleaning status & when last one was.

    Son's Jag XF 2.7D was getting regular DPF errors, but he was doing 10 miles a day in local traffic. Blast up the motorway "like he stole it" every 2-3 weeks has resolved the problem !!
     
    tomcat59alan and Mark Piercy like this.
  3. DanClarke

    DanClarke Well-Known Member Full Member

    Joined:
    Mar 13, 2009
    Posts:
    7,906
    Likes Received:
    17,350
    Location:
    Benfleet, Essex
    You need to bev the rollocks off it on a longish drive to get it nice and hot.
    A typical "Italian tune-up" pre MOT. ;)
     
    Mark Piercy and Rubberknees like this.
  4. Colthebrummie

    Colthebrummie Well-Known Member

    Joined:
    Jan 24, 2017
    Posts:
    7,856
    Likes Received:
    8,181
    Location:
    Thatcham
    I would have thought if this is an ongoing problem with certain DPF's by now so some would have cut a few open to find out what the problem was. Maybe that's how the dealer has diagnosed the issue

    Col
     
  5. tomcat59alan

    tomcat59alan Well-Known Member

    Joined:
    Apr 3, 2011
    Posts:
    14,798
    Likes Received:
    6,468
    Location:
    wirral and triquivijate
    You're probably correct,how would they know unless it's a known failure point, Ultrasound, nondestructive testing??
     
  6. Nodge68

    Nodge68 Well-Known Member

    Joined:
    Nov 15, 2011
    Posts:
    24,029
    Likes Received:
    5,974
    Location:
    Near Newquay
    Sounds like BS to me.
     
    kermit_rr likes this.
  7. Hippo

    Hippo Lord Hippo

    Joined:
    Nov 22, 2007
    Posts:
    40,997
    Likes Received:
    26,752
    Are they using the signal values from the dpf sensors and the emission levels out of the exhaust, to understand the fault? High emission levels would assume the dpf wasn't working. A leak (crack) bypassing some or all of the filter being the theory.
     
    Last edited: Apr 15, 2021
  8. Mark Piercy

    Mark Piercy Well-Known Member Full Member

    Joined:
    Jul 11, 2016
    Posts:
    8,090
    Likes Received:
    4,121
    Location:
    sud ouest France
    A cracked interior would I've a high pressure on the out put side I'd have thought or less resistance on the input side depending how it's monitered?
     
  9. pwood999

    pwood999 Well-Known Member Full Member

    Joined:
    Nov 6, 2006
    Posts:
    1,468
    Likes Received:
    589
    Location:
    Near Heathrow.
    The tester must have either looked at the DPF Differential pressure Sensor (yes the Ejoke has one) in the ECU, or guessed based on exhaust soot in the tailpipe.

    I doubt the average MOT place would bother with ultrasonic tests they are not required to do.
     
    Mark Piercy likes this.
  10. tomcat59alan

    tomcat59alan Well-Known Member

    Joined:
    Apr 3, 2011
    Posts:
    14,798
    Likes Received:
    6,468
    Location:
    wirral and triquivijate
    The diagnosis was by the Stealers,I just wondered how they reached it.;)
     
  11. goonarmy

    goonarmy Beer tester LZIR Despatch Agent

    Joined:
    Oct 14, 2007
    Posts:
    40,281
    Likes Received:
    16,812
    Location:
    Hornchurch
    First question would be had it been driven like a diesel should be? Dpf failures seem to be self inflicted in 80 to 90 percent of the time.
     
    Mark Piercy likes this.
  12. Hippo

    Hippo Lord Hippo

    Joined:
    Nov 22, 2007
    Posts:
    40,997
    Likes Received:
    26,752
    If you purchased the car from a uk main dealer it will have a 2 year used approved warranty. Is an internally cracked dpf covered by that?
     
  13. neilly

    neilly Well-Known Member Full Member

    Joined:
    Jan 10, 2011
    Posts:
    19,606
    Likes Received:
    9,948
    Location:
    Oxfordshireness
    If it is like the FFRR L322 then driving above 50mph for 20 minutes will give it a good clean out when it is required., that is all mine needs, no need to give it an italian tune up.

    Cheers
     
  14. DanClarke

    DanClarke Well-Known Member Full Member

    Joined:
    Mar 13, 2009
    Posts:
    7,906
    Likes Received:
    17,350
    Location:
    Benfleet, Essex
    Doubtless very true. Sadly, anyone trying to drive on the M25 will usually be driving barely above walking speed for hours on end. ;)
     
    kermit_rr likes this.
  15. pwood999

    pwood999 Well-Known Member Full Member

    Joined:
    Nov 6, 2006
    Posts:
    1,468
    Likes Received:
    589
    Location:
    Near Heathrow.
    And do it once per every tank of fuel !! the 50-70mph blast, not the M25 !!
     
    kermit_rr likes this.
  16. neilly

    neilly Well-Known Member Full Member

    Joined:
    Jan 10, 2011
    Posts:
    19,606
    Likes Received:
    9,948
    Location:
    Oxfordshireness
    As the OP has Gosport as their locality , not sure the M25 is their biggest problem.

    Cheers
     
    kermit_rr likes this.
< Previous Thread | Next Thread >