Emergency regeneration POLO 1.6TDI R6

[hetlodd]

Hello i am new on this forum. And i have a polo 1.6tdi r6 and i need to do a emergency regeneration of dpf. Can someone help me with instruction. I have the vcds 11.11 software.

[Guest 2]

Emergrency regeneration as in DPF?

Have you any warning lights on the dash? Engine light/glow plug light etc?

[hetlodd]

Yes i have a glow plug light. I have fauls on particle filter, egr1 valve ond also egr valve potentiometer. And the software says last regeneration of particlefilter 1200km since.

[Guest 2]

Is the car still under VW Warranty?

If so, take it back to them and let them sort it out under the warranty.

[hetlodd]

No i dont think so. Because the car was imported used when my wife buy it. And that was a big mistake. I have also tried to clean the particle filter with tunap cleaning but the car will not do more than 2800rpm.

[Crasher]

Diesel Particle Filter Emergency Regeneration - Ross-Tech Wiki (http://wiki.ross-tech.com/wiki/index.php/Diesel_Particle_Filter_Emergency_Regeneration)

I find these extremely difficult to do with VCDS so I end up using VAS PC.

[hetlodd]

Diesel Particle Filter Emergency Regeneration - Ross-Tech Wiki (http://wiki.ross-tech.com/wiki/index.php/Diesel_Particle_Filter_Emergency_Regeneration)

I find these extremely difficult to do with VCDS so I end up using VAS PC.

Ok thank you, can i use the same cable/hardware i use on VCDS on VAS PC?

[hetlodd]

Cleared error codes and got the car to go very well. But after a while start problem again. Readers do not become a problem with particle filter. But coming up with a problem egr1 sensor signal too low. Also coming up wrong with EGR potentiometer. The last error comes only occasionally and always okkje. Where can i find the egr1 sensor?

[Crasher]

Can we have the actual codes rather than an approximation?

[hetlodd]

Here is from the log. Sometimes the car go very well, thn somtimes the warning ligt came and i have to delete the warnings.



Thursday,17,January,2013,20:18:59:05888
VCDS Version: Release 11.11.5 (x64)


Address 01: Engine Labels: 03L-906-023-CAY.clb
Control Module Part Number: 03L 906 023 E HW: 03L 906 023 D
Component and/or Version: 1,6l R4 CR td H13 5688
Software Coding: 00114014000400080000
Work Shop Code: WSC 124697 483 00190
ASAM Dataset: EV_ECM16TDI02103L906023E 001008 (VW25)
VCID: 2854E8C953E41B5849C
1 Fault Found:


7343 - EGR Potentiometer (G212)
P0407 00 [167] - Signal too Low
MIL ON - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 10
Mileage: 34088 km
Date: 2034.14.17
Time: 20:15:07




Readiness: 0010 0000




Thursday,17,January,2013,20:18:59:05888
VCDS Version: Release 11.11.5 (x64)


Address 01: Engine Labels: 03L-906-023-CAY.clb
Control Module Part Number: 03L 906 023 E HW: 03L 906 023 D
Component and/or Version: 1,6l R4 CR td H13 5688
Software Coding: 00114014000400080000
Work Shop Code: WSC 124697 483 00190
ASAM Dataset: EV_ECM16TDI02103L906023E 001008 (VW25)
VCID: 2854E8C953E41B5849C
1 Fault Found:


7343 - EGR Potentiometer (G212)
P0407 00 [167] - Signal too Low
MIL ON - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 10
Mileage: 34088 km
Date: 2034.14.17
Time: 20:15:07




Readiness: 0010 0000Thursday,17,January,2013,19:29:51:05888
VCDS Version: Release 11.11.5 (x64)
Data version: 20121222






--------------------------------------------------------------------------------
--------------------------------------------------------------------------------




Address 01: Engine (03L 906 023 E)


19:29:32
2.74 hPa Particle filter; offset for differential press. 117
13711.60 s Particle filter; time since last regeneration 118
N/A Particle filter; differential pressure; dynamic offset 119
0 Particle filter; field regeneration request status 120
00000000 Particle filter; field regeneration lock status 121
145.5 km Particle filter; kilometers since last regeneration 122
6.25 l Particle filter; fuel consumption since last regeneration 123
0.0000000 g Particle filter; oil ash volume 124
7.10 g Particle filter; soot mass measured 125
N/A Rule deviation of energy control cylinder 2 126


--------------------------------------------------------------------------------
--------------------------------------------------------------------------------




Address 01: DTCs clearedThursday,17,January,2013,20:26:47:05888
VCDS Version: Release 11.11.5 (x64)
Data version: 20121222






--------------------------------------------------------------------------------
--------------------------------------------------------------------------------




Address 01: Engine (03L 906 023 E)


20:26:32
2.07 hPa Particle filter; offset for differential press. 117
14968.00 s Particle filter; time since last regeneration 118
N/A Particle filter; differential pressure; dynamic offset 119
148.6 km Particle filter; kilometers since last regeneration 122
6.58 l Particle filter; fuel consumption since last regeneration 123
0.0000000 g Particle filter; oil ash volume 124
7.36 g Particle filter; soot mass measured 125
0.0000 s Service regeneration; current duration 138
00000000 00000000 Service regeneration; status 139
11111001 11110101 10111111 11011100 Service regeneration; Release conditions 2 140
7.63 hPa Particle filter; difference pressure 462
6.22 g Particle filter; soot mass calculated 463

[Crasher]

Unscrambling the data blocks I cant see the need for a DPF regeneration and needlessly regenerating it will reduce its life. As far as I can see the Ash Mass is only 7.36 grams and the soot level is quite low too. As far as I can see you need to replace the EGR cooler unit, part number 03L 131 512 CE which I can only see as being available from VW. In the UK it is just under £300.

[hetlodd]

Hello again, thank you. I wonder to go for a solution to remove the dpf. Du you can recommand any to can help me with that to sell me a solution. I can do the job self if somone can sell me pipe replacement and software for the ecu.



And, is it posible to remove and cleaning the EGR cooler unit? That will only be a solution until the remove of dpf

[hetlodd]

Is there anyone who can tell me where the EGR Potentiometer (G212)
P0407 00 [167] is on this car?

[Crasher]

As I have already told you, it is in the EGR cooler.

[hetlodd]

Hello again, i have inspected the engine an i cannot find anything that look like that. I find the egr tube but nothing that looks like a cooler.

[Crasher]

If you have a CAYA engine it has an EGR cooler.

[hetlodd]

Hello again. Here is some picture of the engine and egr tube. One valve on the front of engine and one valve at the back end.

1911719118

[Crasher]

Send me your VIN by Private Message, your cars may be a different specification to ours. This is the system that should be fitted to your car.

[Crasher]

Using your chassis number that you PM'd me I checked your cars specification and it definitely has the EGR cooler item 11 which was VW part number 03L 131 512 BH but changed to 03L 131 512 CE in early 2012 due to problems with the original. This part seems to be only available from VW for the UK price of £312.84 and it is such a common failure that VAG UK have 105 in stock.

[hetlodd]

Hello again, this was very strange. It look not like this on my engine. I will take some better pictures.

[Keithuk]

VAG Error Code: 16791
EOBD II Error Code: P0407

Fault Location:
Exhaust Gas Recirculation (EGR) Valve Position Sensor (G212) B - Low Input

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.

Wiring/Connectors from/to earth on Exhaust Gas Recirculation (EGR) Potentiometer (G212) faulty.
Exhaust Gas Recirculation (EGR) Potentiometer (G212) faulty.

Possible Solutions:
Check Wiring/Connectors from/to Exhaust Gas Recirculation (EGR) Potentiometer (G212).
Check Exhaust Gas Recirculation (EGR) Potentiometer (G212).

As taken from my EOBD II Error Codes (http://www.vwaudiforum.co.uk/forum/showthread.php?97964-EOBD-II-Error-Codes)

You can check the ash content of the DPF with VCDS and it will show when the last regen was done, I checked mine a few months ago.

http://www.myturbodiesel.com/forum/members/keithuk/albums/vcds/847-dpf.jpg

[hetlodd]

Hello again, have now changed the egr cooler and relaced vit a new one. So the error with egr cooler is now fixed. But have still problem with the dpf. The software says measured valiue is about 70g.



Sunday,04,August,2013,22:23:37:37412
VCDS Version: Release 11.11.0 (x64)
Data version: 20111111



--------------------------------------------------------------------------------
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Readiness Status: 1010 0000
Exhaust Gas Recirculation: Failed or Incomplete
Oxygen Sensor Heating: Passed
Oxygen Sensor(s): Failed or Incomplete
Air Conditioning: Passed
Seconday Air Injection: Passed
Evaporative Emissions: Passed
Catalyst Heating: Passed
Catalytic Converter(s): Passed

21830

[Guest 2]

Update your vcds to the latest version first of all.


Sent from my iPhone using Tapatalk

[Crasher]

It will not regen at 70grams of Ash. I can't remember the max figure but that is over it. You will have to replace or clean the EGR and then alter the value of ash to a figure below the threshold which is obviously 0 for a new DPF but on a cleaned one I now tend to set it at 50% of the listed maximum.

[hetlodd]

It will not regen at 70grams of Ash. I can't remember the max figure but that is over it. You will have to replace or clean the EGR and then alter the value of ash to a figure below the threshold which is obviously 0 for a new DPF but on a cleaned one I now tend to set it at 50% of the listed maximum.


Hello again, and thank you for quick answer. I first will clean the EGR. I am not sure i understand you about the value i need to change. This is for it to regenerate itself or is this a forced regeneration? Is there a risk of fire during forced regeneration. Can i do that with VCDS software? I have the version 11.11.6.

[Crasher]

The value has to allow a regen as it is too high but this must only be done when the ash weight has been reduced and ash cannot be removed during a regen, only soot can. Soot loading and ash mass are two different things.