DPF cleaning solutions

[witchcraftz]

I've been looking into DPF cleaning solutions, the kind that you inject directly onto the dpf to cleanup the soot residue.
They come usually in a 2 bottle formulation
bottle 1 = cleaner
bottle 2 = rinser

I have come to the conclusion that these products are massively overpriced.
At the base all the cleaners are all made from:

Water and
1% (+/- 2%) Ethanolamine or Diethanolamine or Triethanolamine​

Or some combination of the above, basically diluted Base (not acidic) degreasers/soaps! with a PH around 10.

The rinse is made from either

distilled water+coloring
or kerosene​

None of this is rocket science and not worth $15 bottle for colored water!

 

[South Coast Guy]

And they don't work.

 

[pdq import repair]

And they don't work.

What makes you think your DPF needs cleaning? Soot load? Codes?

 

[witchcraftz]

DPF light+CEL came on. I tested it in vagcom and it reads:
soot measured = 0.12
soot calculated = 40

Did a forced regen and I got:
soot measured = 0.12
soot calculated = 60

So I figured my pressure sensor might be bad. But this car has 2 sensors...Which one is the DPF one, or are they both?
Both sensors connect somewhere to the bottom of the DFP area on one side and vent to the open on the other.

Anyone one have a diagram of this engine's dpf system?

 

[pdq import repair]

Both sensors are used to calculate DPF pressure. They will usually code if there is a problem with the sensor itself.
The car won't usually force a regen till .18ish soot level, so i don't think that is the problem.

What specific code did you get? Boost leak will sometimes flag a DPF plugging code, for some reason.

 

[witchcraftz]

P2463

1 Fault Found:
5188 - Diesel Particle Filter
P2463 00 [175] - Excessive Soot Accumulation
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 57758 km
Date: 2016.11.15
Time: 20:34:52

Engine speed: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 9 °C
Intake air temperature: 9 °C
Ambient air pressure: 1000 mbar
Voltage terminal 30: 12.040 V
Unlearning counter according OBD: 40
Counter for regeneration time of diesel particle filter: 0.00 s
Particle filter: kilometers since last regeneration: 154195 m
Particle filter: soot mass measured: -0.24 g
Particle filter: soot mass calculated: 60.00 g
Particl.filt.: differential pressur.sensor 1 bank 1: dyn.offset: 0 hPa

Readiness: 1 1 0 1 1

 

[meerschm]

http://pics3.tdiclub.com/data/517/820433_EA288.pdf

has some info

explained in more detail for previous engines,

the greater of calculated or measured soot calls the shots.

since this case looks like the measured soot is low, and the calculated soot is high,

the calculated soot is preventing the car from running a DPF regen.

earlier cars had a way to use VCDS to lie to the car that the DPF was replaced, which also resets the calculated soot.

this would be what I would look for.

 

[meerschm]

one more question is what prevented the regenerations to complete that should have been called for earlier?

was there another sensor not working?

 

[witchcraftz]

If you look at it, the last regen was 154 km ago, so fairly recently.
Also why did my soot level jump up by 20 mg when I tried a forced regen.

That pdf was gold btw!


So on my car, the large metal canister contains the dpf? And the inlet (pointing up in this pic below) is where all the soot accumulates?

So if I pull out a sensor in that top area between the turbo and DPF I should have access to where all the soot has accumulated and see how bad it actually seems?

So on my car, the large metal canister contains the dpf, the inlet (pointing up in this pic) is where all the soot accumulates?

 

[meerschm]

above photo is from a VW newsletter.

The parts you posted a photo of are not the north american design. (see the clamp on the bottom of the large canister which is not on the north american version)

the exhaust enters from the upper left,.

the rigid tubing should be connected to pressure sensors,


Soot is supposed to accumulate on the internal surface of the DPF, where it is then almost all converted to transparent gasses during regeneration.
some soot would be expected in the smaller oxidation catalyst, and in between.

 

[meerschm]

the earlier cars (2009-2014) had two exhaust pressure sensors, one across the DPF, the other across the low pressure EGR.

 

[witchcraftz]

Thanks meerschm, that picture helps.

So from what I'm seeing then, and with the picture posted of my engine:
the left pressure sensor is the entry pressure
the right is the exit pressure.
The calculated soot mass is based on the difference of pressure of those 2 sensors.

I feel like this DPF design is very poor then, the DPF inlet is in the middle of a system, and has a very small area in front, soot will block such a small area quickly.

Also this version doesn't come apart like the one in the picture I found so cleaning it is almost impossible.

The only way to access the DPF inlet and see what it's like is through entry pressure sensor tap.



As a side note, from my understanding, one reaction of Ethanolamine or Diethanolamine or Triethanolamine + ash = Soap
Another is that it makes oil water soluble.
So it's actually quite smart and should work. You spray the ethanolamine detergent into soot, the combination turns into a water soluble soap, then rinse it away with water.

The danger I see is that if the EGR takes exhaust after the DPF, then if there is a lot of water vapour you could hydrolock.

 

[pdq import repair]

Try cleaning, and/or swapping the sensors. Give the ecu a new outlook

 

[witchcraftz]

Yup, did that already, bought a new sensor too but no change.

I was thinking of injecting a solution made of ethanolamine detergent and water into the inlet pressure port.

Is there a risk of the water being pulled back into the Cylinder via the EGR system here?

 

[meerschm]

My free advice is not to use any liquid cleaner. but if you really want to clean it, take it off the car, and make sure it is as clean and dry as you can get it. professional cleaners use hot air. but there are those who use solvents of various kinds. (including oven cleaner or brake cleaner) the first issue is that these are dangerous to use, and the residue presents a problem.)

the first order of business is to figure out what went wrong. fix that, and then recover.

http://www.natef.org/NATEF/media/NATEFMedia/VW Files/2-0-TDI-SSP.pdf

the previous ssp on the earlier engine had more info on calculated vs measured soot.

Active Regeneration Function
The soot load of the particulate filter is calculated
by two pre-programmed load models in the Engine
Control Module (ECM) J623.


One of the load models is determined from the
driving profile of the user and the signals from
the exhaust gas temperature sensors and Heated
Oxygen Sensor (HO2S) G39.


Another soot load model is the flow resistance of
the particulate filter. It is calculated from the signals
of Exhaust Pressure Sensor 1 G450, Exhaust Gas
Temperature (EGT) Sensor 3 G495, and Mass Air
Flow (MAF) Sensor G70.
​

These are calculated and measured.

seems like similar calculations are performed for your engine.

my guess is that the high reading you see, the calculated soot, is from the first model, which does not use the pressure drop at all.

if you were to clean out the DPF, and not reset the calculated soot, you could be right where you are now.

 

[witchcraftz]

Reeving at 2000 rpm yesterday I got:

Address 01: Engine (04L 906 021 D)

IDE00433 Particle filter: oil ash volume 0.03 l
IDE00434 Particle filter: soot mass calculated 60.00 g
IDE00435 Particle filter: soot mass measured 0.35 g
IDE04092 Diesel particle filter bank 1 3.40/---/--- kPa
IDE04652 Exhaust gas jet volume in particle filter 131.1 m³/h
IDE05357 Current temperature in NOx reducing catalytic converter 51.4 °C
IDE07744 Particle filter: air pressure sensor 1 bank 1: raw value 34 hPa
IDE07747 Particle filter: differential pressure sensor 1 bank 1: offset 2 hPa

As the pressure should be max 4hPa then perhaps my filter is fine?

I'll run another measure with engine cold and then rpm at 2000
But with the sensors below. But still not sure

calculated/measured soot:
One of the load models is determined from the driving profile of the user and the signals from the exhaust gas temperature sensors and Heated Oxygen Sensor (HO2S) G39.

calculated/measured soot:
the flow resistance of the particulate filter. It is calculated from the signals of Exhaust Pressure Sensor 1 G450, Exhaust Gas Temperature (EGT) Sensor 3 G495, and Mass Air Flow (MAF) Sensor G70.

 

[meerschm]

The sensor numbers on the cbea are different than on your car.

but the concept should be consistent.

I would log some of those values you picked over a drive, and see how they change.

if you look at the ssp for the EA288, on page 61, it states that an active regeneration will not be run if the soot level is over 45 grams.

the problem is that you need the active DPF regeneration cycles or sooner or later the whole thing will clog up.

if you believe the measured soot, and want to reset the calculated soot, something like the process described here might work.

http://forums.tdiclub.com/showpost.php?p=4829285&postcount=6

but as i suggested before, you might want to figure out how the soot level got so high.

 

[witchcraftz]

I cannot for sure say what caused this DPF problem. The vehicle was purchased damaged and rebuilt.
At the time of purchase there was no DPF problem, after rebuild was completed and the vehicle delivered it immediately started showing this error.
I haven't even insured it or driven it very far except for twice just for 15-20 min at speed (with temp insurance) to try to get the engine to perform a regen.

Considering it went from "clean" DPF to crazy plugged in 154 km, according to the logged data, I'm not sure what to think.
Also it seems to drive ok.

Here are some logged values

Engine Idle

IDE00167 Exhaust temperature 1 bank 1 108.2 °C
IDE00169 Exhaust temperature 2 bank 1 59.8 °C
IDE00347 Air mass: actual value: 13.24 g/s
IDE00350 Air mass: specified value 250.0 mg/stroke
IDE04045 Exhaust gas pressure EP1:0.26 kPa
IDE04090 Exhaust temperature bank 1 S1/S2/S3/S4: / 134/105/79/49 °C
IDE04468 Air mass at air mass meter 1 48.5 kg/h
IDE07801 Mass airflow sensor 1 bank 1 airflow: raw value 533.1 mg/stroke

IDE04045 Exhaust gas pressure EP1:0.24 kPa
IDE04092 Diesel particle filter bank 1 1.30/---/--- kPa
IDE04652 Exhaust gas jet volume in particle filter 49.7 m³/h
IDE04653 Simulated particle filter surface temperature 21.0 °C
IDE07716 Particle filt.inlet temp.sens.1 bank 1: raw value 41.3 °C
IDE07718 Particle filter outlet temp.sens.1 bank 1: raw value 19.4 °C
IDE07744 Particle filter: air pressure sensor 1 bank 1: raw value 13 hPa
IDE07745 Particl.filt.: different.press.sensor 1 bank 1: adaptat. value 13 hPa
IDE07747 Particle filter: differential pressure sensor 1 bank 1: offset 2 hPa
IDE07748 Particl.filt.: differential pressur.sensor 1 bank 1: dyn.offset 0 hPa



2000 RPM

IDE00167 Exhaust temperature 1 bank 1 107.3 °C
IDE00169 Exhaust temperature 2 bank 1 62.9 °C
IDE00347 Air mass: actual value: 38.97 g/s
IDE00350 Air mass: specified value 250.0 mg/stroke
IDE04045 Exhaust gas pressure EP1:0.89 kPa
IDE04090 Exhaust temperature bank 1 S1/S2/S3/S4: / 152/115/82/50 °C
IDE04468 Air mass at air mass meter 1 135.5 kg/h
IDE07801 Mass airflow sensor 1 bank 1 airflow: raw value 588.8 mg/stroke

IDE04045 Exhaust gas pressure EP1:0.84 kPa
IDE04092 Diesel particle filter bank 1 3.40/---/--- kPa
IDE04652 Exhaust gas jet volume in particle filter 141.0 m³/h
IDE04653 Simulated particle filter surface temperature 32.1 °C
IDE07716 Particle filt.inlet temp.sens.1 bank 1: raw value 55.6 °C
IDE07718 Particle filter outlet temp.sens.1 bank 1: raw value 30.9 °C
IDE07744 Particle filter: air pressure sensor 1 bank 1: raw value 32 hPa
IDE07745 Particl.filt.: different.press.sensor 1 bank 1: adaptat. value 32 hPa
IDE07747 Particle filter: differential pressure sensor 1 bank 1: offset 2 hPa
IDE07748 Particl.filt.: differential pressur.sensor 1 bank 1: dyn.offset 0 hPa



======================
And full autoScan
======================
Chassis Type: AU (5Q0)
Scan: 01 02 03 08 09 15 16 17 19 42 44 52 5F 75

VIN: Mileage: 57759km-35889miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
5F-Information Electr. -- Status: Malfunction 0010 (I recently disconnected the battery so suspect that is what caused this error)
75-Telematics -- Status: OK 0000

-------------------------------------------------------------------------------
Address 01: Engine (J623-CRUA) Labels: 04L-907-309-V1.clb
Part No SW: 04L 906 021 D HW: 04L 907 309
Component: R4 2,0L EDC H23 8278
Revision: 85H23---
Coding: 011D0012032410080000
Shop #: WSC 48433 001 1048576
ASAM Dataset: EV_ECM20TDI01104L906021D 001013
ROD: EV_ECM20TDI01104L906021D.rod
VCID: 2649DBDD59710172E6-8072

1 Fault Found:
5188 - Diesel Particle Filter
P2463 00 [167] - Excessive Soot Accumulation
MIL ON - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 57759 km
Date: 2016.11.20
Time: 20:53:25

Engine speed: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 26 °C
Intake air temperature: 21 °C
Ambient air pressure: 1000 mbar
Voltage terminal 30: 11.860 V
Unlearning counter according OBD: 40
Counter for regeneration time of diesel particle filter: 0.00 s
Particle filter: kilometers since last regeneration: 155077 m
Particle filter: soot mass measured: 0.62 g
Particle filter: soot mass calculated: 60.00 g
Particl.filt.: differential pressur.sensor 1 bank 1: dyn.offset: 2 hPa

Readiness: 0 0 0 1 1

-------------------------------------------------------------------------------
Address 02: Auto Trans (J743) Labels: 0D9-927-770.clb
Part No SW: 0D9 300 041 N HW: 02E 927 770 AQ
Component: DQ250-6F MQB H52 4506
Revision: 03252204 Serial number: TFK01404171357
Coding: 0014
Shop #: WSC 00066 790 00221
ASAM Dataset: EV_TCMDQ250021 001001
ROD: EV_TCMDQ250021.rod
VCID: 234FC2C92A43F45A81-8076

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels: 5Q0-907-379-ESP-V1.clb
Part No SW: 5Q0 907 379 K HW: 5Q0 907 379 F
Component: ESC H31 0371
Revision: 00000000 Serial number: 51664000000032
Coding: 01FA6AA124210973007E020381C42580562490004081A4B200630050C002
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_Brake1UDSContiMK100ESP 033001
ROD: EV_Brake1UDSContiMK100ESP_033.rod
VCID: 448D6155CF0DD362D8-8010

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301) Labels: 5G0-907-426.clb
Part No SW: 5G0 907 426 Q HW: 5G0 907 426 Q
Component: AC Manuell H02 0907
Revision: 00001K06
Coding: 00020104200100000000000000000000
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_ACManueBHBVW37X 003019
ROD: EV_ACManueBHBVW37X_SK48.rod
VCID: 397300A1B8CF9E8ABB-806C

Fresh Air Blower Front:

Refrigerant Pressure And Temperature Sender:

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels: 5Q0-937-08X-BV1.clb
Part No SW: 5Q0 937 087 M HW: 5Q0 937 087 M
Component: BCM PQ37BOSCH 028 0106
Revision: -------- Serial number: 86582405140399
Coding: 000018424041804169E44000000403001000000000000000000000000000
Shop #: WSC 00066 790 00195
ASAM Dataset: EV_BodyContrModul1UDSBosc 013005
ROD: EV_BCMBOSCH_013.rod
VCID: 458B7C51C437EA6ACF-8010

Control Unit For Wiper Motor:
Subsystem 1 - Part No SW: 5GM 955 119 HW: 5GM 955 119 Labels: 5QX-955-119-V1.CLB
Component: WWS 140628 043 0581
Serial number: 140720182857
Coding: 0E4DDD

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234) Labels: 5Q0-959-655.clb
Part No SW: 5Q0 959 655 T HW: 5Q0 959 655 T
Component: AirbagVW20 009 0825
Serial number: 003MHM00HW3U
Coding: 8CCCFC00000000005000001AC24800000065
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_AirbaVW20SMEVW37X 002138
ROD: EV_AirbaVW20SMEVW37X_VW37.rod
VCID: 51A35801007F36CA63-8004

Occupant Detection:
Subsystem 1 - Part No SW: 4M0 959 339 A HW: 4M0 959 339 A
Component: BF-Gewichtss. H05 0016
Serial number: IBH0000J14000100PW0%
Coding: 30325A

Side Sensor Driver Front:
Subsystem 2 - Part No SW: ----------- HW: 480 002 105 14
Component: SideSensor_Df 001 0887
Serial number: 357000000009FC05CF0/
Coding: 2D2D2D

Side Sensor Passenger Front:
Subsystem 3 - Part No SW: ----------- HW: 480 002 805 14
Component: SideSensor_Pf 001 0887
Serial number: 35800000000FFCC4EF0H
Coding: 2D2D2D

Side Sensor Driver Rear:
Subsystem 4 - Part No SW: ----------- HW: 480 402 205 14
Component: SideSensor_Dr 001 6149
Serial number: 35100029B15C4213B05W
Coding: 2D2D2D

Side Sensor Passenger Rear:
Subsystem 5 - Part No SW: ----------- HW: 480 402 205 14
Component: SideSensor_Pr 001 6149
Serial number: 3520002AB15C4211410L
Coding: 2D2D2D

Front Sensor Driver:
Subsystem 6 - Part No SW: ----------- HW: 480 401 006 14
Component: FrontSensor_D 001 6149
Serial number: 3550002A51617D24C06$
Coding: 2D2D2D

Front Sensor Passenger:
Subsystem 7 - Part No SW: ----------- HW: 480 401 006 14
Component: FrontSensor_P 001 6149
Serial number: 3560002A31617D24B38%
Coding: 2D2D2D

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J524) Labels: 5Q0-953-549.clb
Part No SW: 5Q0 953 521 P HW: 5Q0 953 569 A
Component: Lenks.Modul 075 0155
Revision: FF028028 Serial number: 20140529400177
Coding: 0410
Shop #: WSC 66564 385 16448
ASAM Dataset: EV_SMLSVALEOMQB 001015
ROD: EV_SMLSVALEOMQB.rod
VCID: 3F876EB9A6EBB0BA85-806A

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels: 5G0-920-XXX-17.clb
Part No SW: 5G1 920 841 HW: 5G1 920 841
Component: KOMBI 243 4270
Coding: 0BB51A0A2180CF0502096A001000000000000000
Shop #: WSC 00066 790 00221
ASAM Dataset: EV_DashBoardVDDMQBAB 009037
ROD: EV_DashBoardVDDMQBAB_009_VW26.rod
VCID: 65CB9CD164F7CA6A2F-8030

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels: 5Q0-907-530-V1.clb
Part No SW: 5Q0 907 530 S HW: 5Q0 907 530 L
Component: GW MQB Mid 211 2186
Revision: -------- Serial number: 28061410000015
Coding: 0101000800087300EF0000081C0F00000001050000000000000000000000
Shop #: WSC 00066 790 07027
ASAM Dataset: EV_GatewConti 011017
ROD: EV_GatewConti_011.rod
VCID: 41836841D01FC64AF3-8014

Alternator:

Multi Function Steering Wheel Control Module:
Subsystem 2 - Part No SW: 5G0 959 442 P HW: 5G0 959 442 P
Component: E221__MFL-DC1 H14 0101
Serial number: 29140000966250074201
Coding: 29FFFF

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386) Labels: 5QX-959-X93-42.clb
Part No SW: 5Q0 959 393 B HW: 5Q0 959 393 B
Component: TSG FS 020 0025
Serial number: 280614060505BJ
Coding: 003003200000040000000000
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_DCUDriveSideEWMINKLO 006003
ROD: EV_DCUDriveSideEWMAXCONT.rod
VCID: 3E7913BDA1E1B9B28E-806A

Drivers Door Rear Control Module:
Subsystem 1 - Part No SW: 5Q0 959 811 A HW: 5Q0 959 811 A
Component: FOND_FHSG_DRV 005 0005
Serial number: 00000000000002898130
Coding: 011000

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500) Labels: 5Q0-909-144.clb
Part No SW: 5Q0 909 144 P HW: 5Q0 909 144 P
Component: EPS_MQB_ZFLS 122 1043
Coding: 0102
Shop #: WSC 00066 790 00221
ASAM Dataset: EV_SteerAssisMQB 010031
ROD: EV_SteerAssisMQB_010.rod
VCID: 41836841D01FC64AF3-8014

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387) Labels: 5QX-959-X92-52.clb
Part No SW: 5Q0 959 392 B HW: 5Q0 959 392 B
Component: TSG BFS 020 0025
Serial number: 23061406050330
Coding: 003003200000040000000000
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_DCUPasseSideEWMINKLO 006003
ROD: EV_DCUPasseSideEWMAXCONT.rod
VCID: 3D7B14B1ACE7A2AA97-8068

Passengers Rear Door Control Module:
Subsystem 1 - Part No SW: 5Q0 959 812 A HW: 5Q0 959 812 A
Component: FOND_FHSG_PSG 005 0005
Serial number: 00000000000002868483
Coding: 191000

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794) Labels: 5G0-035-MIB-STD1.clb
Part No SW: 5G0 035 844 HW: 5G0 035 844
Component: MU-S-S-US 014 0645
Serial number: V7B00406142418
Coding: 02730000FF00000021220001001800001F0100040100010002
Shop #: WSC 00066 790 07027
ASAM Dataset: EV_MUStd4CPASE 002040
ROD: EV_MUStd4CPASE_VW37.rod
VCID: 64CD81D56FCDB36238-8030

Operating And Display Unit 1:
Subsystem 1 - Part No SW: 5G0 919 605 H HW: 5G0 919 605 H
Component: ABT_Std_Plus H60 0030
Serial number: VWZ8Z9PS500AMD

1 Fault Found:
0020 - Tuner for Satelite Radio
B11CF 53 [009] - Deactivated
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Reset counter: 87
Mileage: 57759 km
Date: 2016.11.20
Time: 20:53:29

Voltage terminal 30: 11.8 V
Satellite radio tuner status-Satellite radio antenna status: Electrical OK
Satellite radio tuner status-Channel selection for satellite radio: 0
Satellite radio tuner status-Audio Signal: Not available
Satellite radio tuner status-Antenna current: 0 mA
Satellite radio tuner status-Reception quality: Not available
Satellite radio tuner status-SDARS Flash Regional code: US_Audio_Traffic_Travellink


-------------------------------------------------------------------------------
Address 75: Telematics (J949) Labels: 5QE-035-285.clb
Part No SW: 5QE 035 285 HW: 5QE 035 285
Component: OCULowMQBUS 006 0528
Coding: 02730002C2821A017F1E06000000
Shop #: WSC 00066 790 00208
ASAM Dataset: EV_OCULowMQB 001003
ROD: EV_OCULowMQB.rod
VCID: 0201A74D95991D52AA-8056

No fault code found.

End-------------------------(Elapsed Time: 03:23)--------------------------

 

[meerschm]

If you reset the errors, does the same one come back? The frequency of 1 seems to say this was a one time error seen. I watch the frequency increment on my P0401 error as I drive. Could be you only med the conditions for the test during your test drive.

(before you do so, what do the OBD screens say?...)

the values you picked and saved are helpful, when I suggested a log of values, I had in mind recording the data as it changes over a drive.

the good news is your engine reports a lot of values, the bad news is that VW does not share what they all report, what they mean, or how they relate to each other. and the names we see are (I think) translated from the original german.

are there any more DPF pressure values you can chose from?


My guess here is that the real issue is a sensor someplace. or a leak in a hose.

How much of the car was rebuilt?

It might be that you will need to find someone with a similar car to compare readings.

(My 2009 will not be of much help...)

 

[Boostingperformance]

The cause is from not having long constant highway trips. I had exact same issue. Follow the owners manual.

 

[pdq import repair]

My car was also a total. Not by impact but by vandalism. Grandson who was given a perfect car had anger issues and slowly beat it to death with baseball bats and garden implements and whatever he could find. Apparently he was mad as the turbo seal had failed and rather than deal with it he just drove it to death. When I bought the car the exhaust was so full of oil it dripped out the tailpipe and all the muffler and exhaust seams were damp looking.

After replacing the turbo and getting it back on the road it was coding fairly regular as I expected it would. My normal daily commute is 20 minutes of freeway with a long hill at one end. On my way home I travel up a 7% grade for ten miles at 65 mph speed. Within a couple weeks of this the coding pretty much quit.

My car has never done a regen on it's own as the normal commute gets the exhaust temp high enough to burn the soot away.

I would put some highway miles on it to completely heat the exhaust for several cycles before going any further. On my car for instance I was sure I would have to replace the DPF due to former abuse, but it cleared itself up with regular driving.

 

[witchcraftz]

If you reset the errors, does the same one come back? The frequency of 1 seems to say this was a one time error seen. I watch the frequency increment on my P0401 error as I drive. Could be you only med the conditions for the test during your test drive.

The DPF error comes back every time, a reset does not seem to change that error code.

are there any more DPF pressure values you can chose from?

There are a lot of values to read, but vagcom only allows 12 at a time so I've been picking the ones that seem to make the most sense.

How much of the car was rebuilt?

Car had a hit in the rear left quarter panel, panel was replaced and painted. Front right strut was also replaced. Nothing else was damaged.

The cause is from not having long constant highway trips.

I'd be ok with trying another 10 min trip but looking at the value of 60mg which is way over the 45mg max, I'm worried I'll end up at the side of the road with no help. I'd prefer to make sure my DPF is not fatally clogged before trying to do a burn trip.

 

[meerschm]

When you reset the error, and it comes back, are any of the stored values different?

(freeze frame stuff.....)


You can save the selection of advance measuring block values, (to make it easier to watch various values) click on the upper left of the selection screen.


keep in mind that 60 is already greater than 45.

have you tried the DPF replacement soot reset?

This would be a good idea if you believe the measured soot value, and think the calculated soot value is the result of some screw-up along the way.

 

[witchcraftz]

I can't seem to find the DPF replacement soot test with this car. It's not in any of the adaptation or basic menus I've looked through.


Various readings between clearing codes


===========
After clear code
===========

Engine speed: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 9 °C
Intake air temperature: 9 °C
Ambient air pressure: 1000 mbar
Voltage terminal 30: 12.040 V
Unlearning counter according OBD: 40
Counter for regeneration time of diesel particle filter: 0.00 s
Particle filter: kilometers since last regeneration: 154195 m
Particle filter: soot mass measured: -0.24 g
Particle filter: soot mass calculated: 60.00 g
Particl.filt.: differential pressur.sensor 1 bank 1: dyn.offset: 0 hPa


===========
After clear code
===========

Engine speed: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 29 °C
Intake air temperature: 18 °C
Ambient air pressure: 1000 mbar
Voltage terminal 30: 11.920 V
Unlearning counter according OBD: 40
Counter for regeneration time of diesel particle filter: 0.00 s
Particle filter: kilometers since last regeneration: 155077 m
Particle filter: soot mass measured: 0.52 g
Particle filter: soot mass calculated: 60.00 g
Particl.filt.: differential pressur.sensor 1 bank 1: dyn.offset: -38 hPa

===========
After clear code
===========

Engine speed: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 26 °C
Intake air temperature: 21 °C
Ambient air pressure: 1000 mbar
Voltage terminal 30: 11.860 V
Unlearning counter according OBD: 40
Counter for regeneration time of diesel particle filter: 0.00 s
Particle filter: kilometers since last regeneration: 155077 m
Particle filter: soot mass measured: 0.62 g
Particle filter: soot mass calculated: 60.00 g
Particl.filt.: differential pressur.sensor 1 bank 1: dyn.offset: 2 hPa

 

[meerschm]

It seems like the measured soot is creeping up a bit, as you would expect if you just run for a while and do not drive it.

does the error log show the same data?

http://wiki.ross-tech.com/wiki/index.php/2.0L_CR_TDI

includes this:

Adaptation of Carbon Mass (after DPF Replacement)

Prerequisites:

• Ignition ON
• Engine OFF

[Security Access -16]
Enter the code shown in the VCDS pop-up balloon for "Adaptation Enabling"
[Do It!]
[Adaptation - 10]
From the pulldown menu, select the entry for "Carbon Mass (DPF Replacement)" or "Particle filter initialization".
Save a new value of 1 to reset the learned Carbon Mass. It's normal for that value to automatically change to 0 after it has been successfully saved. Check and clear fault codes to make sure none are present.
​

 

[witchcraftz]

Went for an oil change and then a 20 min drive at 90-120 km/h

The car is slow to get to speed, and kind of sluggish, but maybe that is the normal acceleration because I'm used to my old tuned stage 3.5 MK4 TDI?
Values were very similar at the end as to what was there before the drive.

Soot Measured dropped to 0.37
Soot Calculated stayed at 60

I did take a log of a small drive around the block just after.

CSV file link

 

[Boostingperformance]

You need to drive a bunch at constant speed and burn that junk out.

 

[meerschm]

so the fact that the measured soot lowered after a drive is a good sign.

(mine goes up and down)

 

[meerschm]

have you had a chance to try the reset?

as long as either of the soot levels is over 45 the computer will not run an active regeneration

 

[witchcraftz]

I don't have anything in any of the Engine or Instruments menus or submenus that shows either of those sentences or references anything to do with DPF Reset or Init.
Am I not looking in the right place?

I do feel that something is off since if the soot was really 60g the car would be in serious limp mode?

The only thing I have that relates to the DPF is that manual regen procedure that won't work since one of my values is above 45.

Prerequisites (General):

• Ignition ON
• Engine ON (Idle)
• Fuel Tank at least 1/4 full
• Transmission in Neutral/Park
• Coolant Temperature above 70 °C
• Power Consumers ON (Light, Seat Heating, Front/Rear Window Heater, Climate Control)
• Engine Hood Closed

[Select]
[01 - Engine]
[Basic Settings - 04]

• Use the pulldown menu and select Service regeneration of particle filter

[Go!]
[Show Measuring Data]

• It would be useful to select items such as "Particle filter, soot mass calculated", "Particle filter, soot mass measured", and "Particle filter, time since last regeneration" to observe and verify the progress of the regeneration.
• Due to the way UDS works, there may be differences in the locations and specific description for the values so you may need to search for the values you need.
• Follow the Instructions on the Screen. These may include pressing and/or holding the brake, clutch, or accelerator.

[Done, Go Back]
[Close Controller, Go Back - 06]
http://wiki.ross-tech.com/wiki/inde...gency_Regeneration#Regeneration_while_Driving