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Thread: Audi P8 Is Particle Filter Carbon Mass = Diesel Particle Filter Ash Volume ?

  1. #1
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    Audi P8 Is Particle Filter Carbon Mass = Diesel Particle Filter Ash Volume ?

    Attached is my autoscan for a DPF engine light I've been getting for the last few days.

    Code:
    Monday,13,January,2020,20:21:45:40377
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 19.6.2.0 (x64)
    Data version: 20190930 DS308.0
    www.Ross-Tech.com
    
    
    VIN: WAUZZZ8P18A150608   License Plate: 
    Mileage: 405740km-252115mi   Repair Order: 13Jan2020
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 8P (1K0)
    Scan: 01 03 08 09 15 16 17 19 25 42 44 46 47 52 56 62 72
    
    VIN: WAUZZZ8P18A150608   Mileage: 405740km-252115miles
    
    01-Engine -- Status: Malfunction 0010
    03-ABS Brakes -- Status: OK 0000
    04-Steering Angle -- Status: OK 0000
    08-Auto HVAC -- Status: Malfunction 0010
    09-Cent. Elect. -- Status: Malfunction 0010
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    19-CAN Gateway -- Status: OK 0000
    25-Immobilizer -- Status: OK 0000
    42-Door Elect, Driver -- Status: Malfunction 0010
    44-Steering Assist -- Status: OK 0000
    46-Central Conv. -- Status: OK 0000
    47-Sound System -- Status: Malfunction 0010
    52-Door Elect, Pass. -- Status: Malfunction 0010
    56-Radio -- Status: Malfunction 0010
    62-Door, Rear Left -- Status: OK 0000
    72-Door, Rear Right -- Status: OK 0000
     
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: 03G-906-021-BLS.clb
       Part No SW: 03G 906 021 RG    HW: 03G 906 021 AB
       Component: R4 1,9L EDC  000SG  1957  
       Revision: --H07---    Serial number: AUX7Z0H1FN50NE
       Coding: 0000071
       Shop #: WSC 15937 159 999999
       VCID: 75CF03891C5C8FE784-8020
    
    4 Faults Found:
    001137 - Exhaust Pressure Sensor 1 
                   P0471 - 000 - Implausible Signal
                 Freeze Frame:
                        Fault Status: 01110000
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 255
                        Mileage: 405471 km
                        Time Indication: 0
                        Date: 2020.01.11
                        Time: 11:56:18
    
                 Freeze Frame:
                        RPM: 0 /min
                        Speed: 0.0 km/h
                        (no units): 66.30
                        (no units): 71.40
                        (no units): 0.0
                        Temperature: 84.0C
                        Temperature: 7.2C
    
    009299 - Diesel Particle Filter; Differential Pressure Sensor 
                   P2453 - 000 - Implausible Signal
                 Freeze Frame:
                        Fault Status: 01110000
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 255
                        Mileage: 405546 km
                        Time Indication: 0
                        Date: 2020.01.11
                        Time: 13:36:03
    
                 Freeze Frame:
                        RPM: 0 /min
                        Speed: 0.0 km/h
                        (no units): 81.60
                        (no units): 76.50
                        (no units): 0.0
                        Temperature: 384.0C
                        Temperature: 7.2C
    
    005659 - Glowplug for Cylinder 2 (Q11) 
                   P161B - 000 - Open Circuit
                 Freeze Frame:
                        Fault Status: 01100000
                        Fault Priority: 3
                        Fault Frequency: 1
                        Reset counter: 255
                        Mileage: 405594 km
                        Time Indication: 0
                        Date: 2020.01.12
                        Time: 08:20:08
    
                 Freeze Frame:
                        RPM: 882 /min
                        Speed: 0.0 km/h
                        Load: 0.0 %
                        Voltage: 13.15 V
                        Bin. Bits: 00000100
                        Temperature: 4.5C
                        Bin. Bits: 10110000
    
    005660 - Glowplug for Cylinder 3 (Q12) 
                   P161C - 000 - Open Circuit - Intermittent
                 Freeze Frame:
                        Fault Status: 00100000
                        Fault Priority: 3
                        Fault Frequency: 1
                        Reset counter: 255
                        Mileage: 405594 km
                        Time Indication: 0
                        Date: 2020.01.12
                        Time: 08:20:08
    
                 Freeze Frame:
                        RPM: 882 /min
                        Speed: 0.0 km/h
                        Load: 0.0 %
                        Voltage: 13.15 V
                        Bin. Bits: 00000100
                        Temperature: 4.5C
                        Bin. Bits: 10110000
    
    Readiness: 1 1 0 0 0 
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 1K0-907-379-MK60-F.lbl
       Part No SW: 1K0 907 379 AC    HW: 1K0 907 379 AC
       Component: ESP FRONT MK60      0101  
       Revision: 00H11001    
       Coding: 0021121
       Shop #: WSC 06314 000 00000
       VCID: 73CB3D91122891D7AA-8026
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC        Labels: None
       Part No: 8P0 820 047 
       Component: J255  Klima Man H07 0030  
       Shop #: WSC 00000 000 00000
       VCID: 6DFF2BE9740C47277C-8038
    
    1 Fault Found:
    00229 - Refrigerant Pressure 
                002 - Lower Limit Exceeded
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect.        Labels:. 8P0-907-279-30-B.lbl
       Part No SW: 8P0 907 279 J    HW: 8P0 907 279 J
       Component: Bordnetz-SG     H54 2501  
       Revision: 00H54000    Serial number: 00000008037223
       Coding: 00880F01B01410004F1600001600000000085A175C010000000000000000
       Shop #: WSC 06314 000 08192
       VCID: 44A9AE4D0706666FC3-8010
    
       Subsystem 1 - Part No: 8P2 955 119 E  Labels: 1KX-955-119.CLB
       Component: Wischer AU350   H01 0130  
       Coding: 00062736
       Shop #: WSC 06314  
    
    2 Faults Found:
    00978 - Lamp for Low Beam; Left (M29) 
                010 - Open or Short to Plus - Intermittent
                 Freeze Frame:
                        Fault Status: 00111010
                        Fault Priority: 1
                        Fault Frequency: 2
                        Reset counter: 19
                        Mileage: 403301 km
                        Time Indication: 0
                        Date: 2019.12.03
                        Time: 07:55:00
    
                 Freeze Frame:
                            ON
                        Voltage: 14.10 V
                            ON
                            ON
                            OFF
                            OFF
                            OFF
    
    01598 - Drive Battery Voltage 
                000 - - - Intermittent
                 Freeze Frame:
                        Fault Status: 00100000
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 17
                        Mileage: 405133 km
                        Time Indication: 0
                        Date: 2019.12.16
                        Time: 08:31:00
    
                 Freeze Frame:
                            ON
                        Voltage: 13.85 V
                            ON
                            ON
                            OFF
                            OFF
                            OFF
    
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 8P0-959-655-94.lbl
       Part No SW: 8P0 959 655 L    HW: 8P0 959 655 L
       Component:    Airbag 9.41  H01 4220  
       Revision: 91H01422    Serial number: 003CP002PSAJ  
       Coding: 0071612
       Shop #: WSC 06314 000 00000
       VCID: 4BBB85712A58A91702-801E
    
       Subsystem 1 - Serial number: 6332DRB40E69872A$
    
       Subsystem 2 - Serial number: 6342DRB406AC9231R
    
       Subsystem 3 - Serial number: 63528RB40385DBF0Z
    
       Subsystem 4 - Serial number: 63628RB403843960E
    
       Subsystem 5 - Serial number: 63747RB40369EEE22
    
       Subsystem 6 - Serial number: 63847RB40369ED9E9
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel        Labels: 1K0-953-549-MY8.lbl
       Part No SW: 1K0 953 549 AH    HW: 1K0 953 549 AH
       Component: J0527           036 0070  
       Coding: 0000002
       Shop #: WSC 06314 000 00000
       VCID: 78D10ABD0B4EF28F9F-802C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 8P0-920-xxx-17-MY8.clb
       Part No SW: 8P0 920 981 K    HW: 8P0 920 981 K
       Component: KOMBIINSTR. VDO H22 0660  
       Revision: D0H22003    Serial number: 2241H003108478
       Coding: 0006423
       Shop #: WSC 12345 123 12345
       VCID: 40A1A25D131E7A4FE7-8014
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway        Labels:. 1K0-907-530-V3.clb
       Part No SW: 1K0 907 530 P    HW: 1K0 907 951 
       Component: J533__Gateway   H16 0192  
       Revision:   H16       Serial number: 2500K0820401C4
       Coding: E9807F061002022103
       Shop #: WSC 06314 000 00000
       VCID: 3449FE8D57A6D6EF73-8060
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
       Part No SW: 8P0 920 981 K    HW: 8P0 920 981 K
       Component: KOMBIINSTR. VDO H22 0660  
       Revision: D0H22003    Serial number: AUX7Z0H1FN50NE
       Shop #: WSC 00000 000 00000
       VCID: 40A1A25D131E7A4FE7-8014
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver        Labels: 8P0-959-801-MIN3.lbl
       Part No SW: 8P0 959 801 K    HW: 8P0 959 801 K
       Component: Tuer-SG         H03 0050  
       Coding: 0000688
       Shop #: WSC 06314 000 00000
       VCID: 43ABAD5102086157FA-8016
    
    1 Fault Found:
    00928 - Locking Module for Central Locking; Front Driver Side (F220) 
                008 - Implausible Signal
    
    -------------------------------------------------------------------------------
    Address 44: Steering Assist        Labels: 1Kx-909-144-G2V3.clb
       Part No: 1K2 909 144 M
       Component: EPS_ZFLS Kl.078 H08 1901  
       Shop #: WSC 02069 000 90108
       VCID: 364DC48541DAC4FF4D-8062
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv.        Labels: 8P0-959-433.lbl
       Part No: 8P0 959 433 J
       Component:    KSG          H11 0080  
       Coding: 1980202002186D0985054C9FC637
       Shop #: WSC 80093 222 69422
       VCID: 43ABAD5102086157FA-8016
    
       Subsystem 1 - Part No: 1K0 951 605 C
       Component: LIN BACKUP HORN H03 1301
    
       Subsystem 2 - Part No: 1K0 907 719 C
       Component: Neigungssensor  005 0003
    
       Subsystem 3 - Part No: 8P0 951 177 
       Component: Innenraumueberw.H04 0020
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 47: Sound System        Labels: 8Px-035-382.lbl
       Part No SW: 8P4 035 382 D    HW: 8P4 035 382 D
       Component: AB2 SUBWOOFERBOXH06 0180  
       Revision: 00005       Serial number: 30674752816328
       Shop #: WSC 00000 000 00000
       VCID: 354FC3895CDCCFE744-8060
    
    1 Fault Found:
    00422 - Rear Right DSP Midrange Speaker (R106) 
                011 - Open Circuit - Intermittent
                 Freeze Frame:
                        Fault Status: 00101011
                        Fault Priority: 5
                        Fault Frequency: 8
                        Reset counter: 6
                        Mileage: 398935 km
                        Time Indication: 0
                        Date: 2019.10.31
                        Time: 17:17:35
    
                 Freeze Frame:
                        Temperature: 11.0C
    
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass.        Labels:. 1K0-959-702-MIN3.clb
       Part No SW: 8P0 959 802 K    HW: 8P0 959 802 K
       Component: Tuer-SG         H03 0050  
       Coding: 0000688
       Shop #: WSC 06314 000 00000
       VCID: 44A9AE4D0706666FC3-8010
    
    2 Faults Found:
    00097 - Front Passengers Central Locking (Safe) Motor (V162) 
                012 - Electrical Fault in Circuit
    00929 - Locking Module for Central Locking; Front Passenger Side (F221) 
                008 - Implausible Signal
    
    -------------------------------------------------------------------------------
    Address 56: Radio        Labels: 8J0-035-1xx-56.clb
       Part No SW: 8P0 035 186 P    HW: 8P0 035 186 P
       Component: R Concert2+     H02 0270  
       Revision: 00H02000    Serial number: AUZ1Z3H8880884
       Coding: 0110211
       Shop #: WSC 06314 000 00000
       VCID: 3FA3A1A16EE005B79E-806A
    
    1 Fault Found:
    00871 - Bass Speaker Front Right (R23) 
                011 - Open Circuit - Intermittent
                 Freeze Frame:
                        Fault Status: 00101011
                        Fault Priority: 5
                        Fault Frequency: 2
                        Reset counter: 28
                        Mileage: 368890 km
                        Time Indication: 0
                        Date: 2019.01.19
                        Time: 11:04:58
    
    
    -------------------------------------------------------------------------------
    Address 62: Door, Rear Left        Labels: 8P4-959-801.lbl
       Part No SW: 8P4 959 801 E    HW: 8P4 959 801 E
       Component: Tuer-SG         H04 0040  
       Coding: 0000144
       Shop #: WSC 06314 000 1012544
       VCID: 41A7A75918147347E8-8014
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 72: Door, Rear Right        Labels: 8P4-959-802.lbl
       Part No SW: 8P4 959 802 E    HW: 8P4 959 802 E
       Component: Tuer-SG         H04 0040  
       Coding: 0000144
       Shop #: WSC 06314 000 1012544
       VCID: 42A5A8551D12685FF1-8016
    
    No fault code found.
    
    End-------------------------(Elapsed Time: 01:16)--------------------------
    I'm trying to see if the regen is taking place but I'm not sure if the measurements are the correct ones or what the ranges should be

    In http://wiki.ross-tech.com/wiki/index...5/P2453/009299 it talks about the Diesel Particle Filter Ash volume but I'm not seeing that entry in the measurements but I do see a particle filter carbon mass value. My value is staying at 255 but is that very bad - good - very good?

    Below are some other measurements I thought might help after taking the car for a short spin (5-10mins) at motorway speeds over 2k revs

    Code:
      285.0 mg/str   Exhaust Gas Recirculat. (spec.)
      430.0 mg/str   Exhaust Gas Recirculat. (actual)
      100.6 %   Exhaust Gas Recirc. Duty Cycle
      0.0 %   Exhaust Gas Recirc. Duty Cycle
             0   Exhaust Gas Recirc. Cooler
      81.60   Press. Difference Particle Filter
      255.0   Particle Filter Carbon Mass
      150.0C   Temperature bef. Particle Filter
      6.7 %   Particle Filter Load Coefficient
      216.0C   Temperature after Particle Filter
      285.0 mg/str   Exhaust Gas Recirculat. (spec.)
      285.0 mg/str   Exhaust Gas Recirculat. (spec.)

    Background
    The car is just back having had a coolant leak, the car is idling under 1000 revs now. It does more motorway commuting than town/stop starts. I cleared the codes but they came back after about a day.

  2. #2
    Benevolent Dictator Uwe's Avatar
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    With Pressure Sensor faults, it's mostly likely not doing any active regeneration. Fix those first.

    Does the DPF in this car really have 252,000 miles on it?

    -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.

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  4. #3
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    Well I've never changed the dpf so I'm guessing it's the original.

    Is this warning just coincidence after I've just gotten it back from fixing (yet) another problem?

    Also are my measurement values tje correct ones to be monitoring and do their values make sense or cause concern?

  5. #4
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    Hi,

    As Uwe says, those pressure sensor faults aren't good.. check the pressure values with ignition on and if anything other than 0 there's something up.. sensors do go faulty.. you could also test with a test pump.. There is no units for the pressure and soot mass values but presuming they are millibars and grammes, those figures are bad.. looks like its blocked up but again you would need to verify pressure sensor before jumping to conclusions.. also I have seen glow plug faults preventing regeneration so you might need to sort those as well.

    Owen.

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  7. #5
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    Had the pressure sensor replaced and the issue seems to have gone away

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  9. #6
    NostraJackAss Jack@European_Parts's Avatar
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    Did you know some guys install inline traps to protect sensors for PSI or even a diaphragm so contaminants can't ever reach the sensors?

    Thank you for report of the situation being resolved.
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