Page 2 of 2 FirstFirst 12
Results 11 to 20 of 20

Thread: Dpf issues

  1. #11
    Verified VCDS User PetrolDave's Avatar
    Join Date
    Dec 2014
    Location
    South Molton, UK
    Posts
    2,450
    Post Thanks / Like
    Is this a duplicate thread???

  2. #12
    Verified VCDS User
    Join Date
    Sep 2019
    Location
    UK
    Posts
    19
    Post Thanks / Like
    Quote Originally Posted by PetrolDave View Post
    How did they test it, did they apply pressure and check for valid readings?
    It was Volkswagen roadside assistance , have no idea how he did it, he tried new sensor too......

  3. #13
    Verified VCDS User
    Join Date
    Sep 2019
    Location
    UK
    Posts
    19
    Post Thanks / Like
    Yes, similar in new users before i was verified. Sorry for any confusion.

    Just pulling hair out......

  4. #14
    Benevolent Dictator Uwe's Avatar
    Join Date
    Jan 2014
    Location
    Earth
    Posts
    24,998
    Post Thanks / Like
    Blog Entries
    1
    Threads merged. Please do not open multiple threads for the same problem in the same car.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

  5. #15
    Verified VCDS User Gremling's Avatar
    Join Date
    Dec 2017
    Location
    Norway, Nordland
    Posts
    84
    Post Thanks / Like
    Hi,
    with regards to low turbo pressure. The way I read scan, the engine (ECU) wants 2.65bar, it gets 2,36, a difference in 0,3bars, hmmm.
    (Hectopascal / 1000 = bar -> hectopascal = millibars).

    Car has 275633km, and I also recon a bit idling, might be time for a turbo overhaul. Just out of curiosity, what is your time between service (oil change)?
    Please also note that the intake filter has an estimated soiling of above 18%, dirty/clogged filter will cause air starvation, hence lower pressure.

    If not done so recently, change to new air filter, new high quality oil and oil filter, might be worth to try this before starting to change more parts.

    Regards
    Gremling

  6. Likes Uwe liked this post
  7. #16
    Verified VCDS User
    Join Date
    Sep 2019
    Location
    UK
    Posts
    19
    Post Thanks / Like
    Quote Originally Posted by Gremling View Post
    Hi,
    with regards to low turbo pressure. The way I read scan, the engine (ECU) wants 2.65bar, it gets 2,36, a difference in 0,3bars, hmmm.
    (Hectopascal / 1000 = bar -> hectopascal = millibars).

    Car has 275633km, and I also recon a bit idling, might be time for a turbo overhaul. Just out of curiosity, what is your time between service (oil change)?
    Please also note that the intake filter has an estimated soiling of above 18%, dirty/clogged filter will cause air starvation, hence lower pressure.

    If not done so recently, change to new air filter, new high quality oil and oil filter, might be worth to try this before starting to change more parts.

    Regards
    Gremling
    Oil changes are done every 4-6months, as i only do approx 8000miles/12000km per year, mostly urban / town driving, short journeys.

    air filter is a re-usable K&N style type. Will check and clean as per instructions.

    Has had a complete new bi-turbo unit (not sure when, was previous owner) can look when it was tonight as have all repair receipts etc.

    Found SSP45 online which gives a very indepth explanation of the biturbo system and the 3 stages of twin turbo system.

  8. #17
    Verified VCDS User
    Join Date
    Sep 2019
    Location
    UK
    Posts
    19
    Post Thanks / Like
    New turbos and new dpf filter in January 2016 @ 116000 miles/185600 kms.

  9. #18
    Verified VCDS User Gremling's Avatar
    Join Date
    Dec 2017
    Location
    Norway, Nordland
    Posts
    84
    Post Thanks / Like
    Last oil-, oilfilter and air filter change?

    Regards
    Gremling

  10. #19
    Verified VCDS User
    Join Date
    Sep 2019
    Location
    UK
    Posts
    19
    Post Thanks / Like
    Quote Originally Posted by Gremling View Post
    Last oil-, oilfilter and air filter change?

    Regards
    Gremling
    About a month ago.

  11. #20
    Verified VCDS User
    Join Date
    Sep 2019
    Location
    UK
    Posts
    19
    Post Thanks / Like
    I have now noticed that my coolant expansion bottle is losing coolant, drops from maximum line to minimum line in 24hrs (20miles). No obvious signs of external leaks. No overheating of engine.

    Could this be a leaking egr cooler?
    Would this create the low turbo boost pressure fault?
    Would this create the dpf clogging issue i had?

    Egr was replaced in august 2016 for the 'D' suffix version as the earlier 'A -C' versions were at fault of breaking down internally.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •