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Thread: Dpf filling up too quickly

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    Dpf filling up too quickly

    Hi I have got 2015 Passat 2.0 TDI with 133k miles. Recently bought it and since I have noticed that dpf regens at least twice in a day. It’s happening roughly every 50-60 miles. It will fill up to 50% but then it jumps straight to 100% and starts regen. Regen process completes as normal and spot reading goes down to 5%. Any ideas why dpf filling so quickly? Any help would be much appreciated in advance.
    Last edited by Inam; 12-10-19 at 19:02.

  2. #2
    Administrator Keithuk's Avatar
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    You need to get your motor scanned (preferably with VAG-COM\VCDS) for any error codes logged in the ecu and post them, that will save a lot of guessing and check systems out.

    You can check to ash/soot content.

    It also depends on what type of driving you do, short journeys aren't good.
    2010 Golf GTD (170) CBBB, 5 Door, Shadow Blue (P6/D5Q), Transmission Code: KXZ, Flat Tyre Indicator, Basic Protection Pack + VCDS.


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  4. #3
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    Quote Originally Posted by Keithuk View Post
    You need to get your motor scanned (preferably with VAG-COM\VCDS) for any error codes logged in the ecu and post them, that will save a lot of guessing and check systems out.

    You can check to ash/soot content.

    It also depends on what type of driving you do, short journeys aren't good.
    Thanks for the reply mate, I am a taxi driver so journeys are mixed but I do school contract Monday to Friday where I do roughly 90 Mile round trip.

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    Last edited by Inam; 13-10-19 at 23:07.
    2015 Passat BlueMotion 2.0 TDI-CR

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    Administrator Crasher's Avatar
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    The ash mass is too high, the DPF needs cleaning and then a forced regeneration plus a new genuine pressure sensor calibrated to the car, aftermarket ones are useless.
    2003 Skoda Octavia VRS Estate. APR 98RON remap, APR R1 diverter valve, Jetex exhaust, K&N panel filter, 7.5x18 Alutec Monstr wheels with 225/40 18 Uniroyal Rainsport 3 tyres.
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    1983 Golf 1 GTI 8 valve, 2 litre with Eurospec racing 42/36 head
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    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

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  7. #5
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    Quote Originally Posted by Crasher View Post
    The ash mass is too high, the DPF needs cleaning and then a forced regeneration plus a new genuine pressure sensor calibrated to the car, aftermarket ones are useless.
    Thanks for the reply mate, any recommendation in burton/derby area? lot of local garages have no clue what to do with out any error codes these days.
    2015 Passat BlueMotion 2.0 TDI-CR

  8. #6
    Administrator Crasher's Avatar
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    We are in Nottingham
    2003 Skoda Octavia VRS Estate. APR 98RON remap, APR R1 diverter valve, Jetex exhaust, K&N panel filter, 7.5x18 Alutec Monstr wheels with 225/40 18 Uniroyal Rainsport 3 tyres.
    2006 Polo GTI 1.8T, APR 95RON remap
    1988 Golf 2 GTI 16 valve, 2.2 with Weber Alpha injection
    1983 Golf 1 GTI 8 valve, 2 litre with Eurospec racing 42/36 head
    1972 1302LS auto 1641cc conversion

    Vile Invention

    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:

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  10. #7
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    Quote Originally Posted by Crasher View Post
    We are in Nottingham
    Replied to you Via PM. Thanks
    2015 Passat BlueMotion 2.0 TDI-CR

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    Quote Originally Posted by Crasher View Post
    We are in Nottingham
    Can you use old DPF sensors with the replacement DPF?
    2015 Passat BlueMotion 2.0 TDI-CR

  12. #9
    Administrator Keithuk's Avatar
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    Quote Originally Posted by Inam View Post
    Can you use old DPF sensors with the replacement DPF?
    As said: You need to get your motor scanned (preferably with VAG-COM\VCDS) for any error codes logged in the ecu and post them, that will save a lot of guessing and check systems out.
    2010 Golf GTD (170) CBBB, 5 Door, Shadow Blue (P6/D5Q), Transmission Code: KXZ, Flat Tyre Indicator, Basic Protection Pack + VCDS.


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  14. #10
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    Got it check mate and came back with no errors. As I said before car drives fine apart from too much dpf regens. Doesn't show up any errors on the dashboard as well.
    2015 Passat BlueMotion 2.0 TDI-CR

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