Audi Q7 DPF regeneration

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winx1

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Hi,

I'm having some trouble regenerating my DPF on my 2008 Audi Q7 3.0L Diesel.

I've seen a video on YouTube showing a Q5 having it's DPF regenned successfuly:


So I thought it would work on my Q7 as the engine ID is practically the same. However, I am getting errors such as "redir labels fail" and "no documentation available".

Is there something i'm missing, do I need to download a new labels file? My VCDS appears to be the newest available, it's official too, bought from a UK distributor.

Here is the output from VCDS:

Code: 
Friday,29,May,2015,11:12:38:45112
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 14.10.2.0 (x64)
Data version: 20150311
www.Ross-Tech.com


VIN: WAUZZZ4L88D059448   License Plate: MJ08 TYW
Mileage: 94140km-58495mi   Repair Order: 



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


Chassis Type: 4L (4L0)
Scan: 01 02 03 05 07 08 09 0E 15 16 17 18 19 34 42 46 47 4F 52 56
          61 62 6F 72 76

VIN: WAUZZZ4L88D059448   Mileage: 94140km-58495miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
07-Control Head -- Status: Malfunction 0010
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
0E-Media Player 1 -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
18-Aux. Heat -- Status: Malfunction 0010
19-CAN Gateway -- Status: OK 0000
34-Level Control -- Status: Malfunction 0010
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: Malfunction 0010
4F-Centr. Electr. II -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: OK 0000
61-Battery Regul. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
6F-Centr. Conv. II -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
76-Park Assist -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (CAS)       Labels: Redir Fail!
   Part No SW: 4L1 910 401 D    HW: 4L0 907 401 A
   Component: 3.0TDI EDC17G100AG  0080  
   Revision: --H01---    Serial number:               
   Coding: 0121002C190F0168
   Shop #: WSC 00482 210 91427
   VCID: 24404D4BE76BC7012A7-8071

4 Faults Found:
009263 - Diesel Particulate Filter (Bank 1) 
               P242F - 001 - Restricted/Clogged - MIL ON
             Freeze Frame:
                    Fault Status: 11100001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 94133 km
                    Time Indication: 0
                    Date: 2015.05.27
                    Time: 10:50:37

             Freeze Frame:
                    RPM: 0 /min
                    Speed: 0.0 km/h
                    (no units): 33.0
                    (no units): 39.5
                    Mileage: 840 km
                    (no units): 0.0
                    (no units): 24.0

008194 - Particulate Trap Bank 1 
               P2002 - 008 - Efficiency Below Threshold
             Freeze Frame:
                    Fault Status: 01101000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 94133 km
                    Time Indication: 0
                    Date: 2015.05.27
                    Time: 10:50:37

             Freeze Frame:
                    RPM: 0 /min
                    Speed: 0.0 km/h
                    (no units): 33.0
                    (no units): 39.5
                    Mileage: 840 km
                    (no units): 0.0
                    (no units): 24.0

001592 - Throttle Body Actuator Bank 1 (J338) 
               P0638 - 000 - Implausible Signal - MIL ON
             Freeze Frame:
                    Fault Status: 11100000
                    Fault Priority: 2
                    Fault Frequency: 2
                    Reset counter: 255
                    Mileage: 94133 km
                    Time Indication: 0
                    Date: 2015.05.27
                    Time: 10:50:39

             Freeze Frame:
                    RPM: 0 /min
                    Speed: 0.0 km/h
                    Lambda: 99.2 %
                    Temperature: 16.2°C
                    Temperature: 23.4°C
                    Lambda: 4.7 %
                    Voltage: 11.93 V

008213 - Intake Manifold Flap Position Sensor (Bank 1) 
               P2015 - 003 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01100011
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 94148 km
                    Time Indication: 0
                    Date: 2015.05.29
                    Time: 10:58:59

             Freeze Frame:
                    RPM: 1092 /min
                    Speed: 0.0 km/h
                    Voltage: 11.25 V
                    Lambda: 0.0 %
                    Lambda: 0.0 %
                    Voltage: 0.540 V
                    Bin. Bits: 00000000

Any help would be much appreciated, thanks!
 
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   #2  
Uwe

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the engine ID is practically the same
Click to expand...
Except that the ECU in the video uses the UDS protocol for diagnostics and yours doesn't. That means procedures are completely different.

I don't have a procedure for your engine handy, but I'm fairly confident you need to address the 001592/P0638 and 008213/P2015 codes before you will be able to run a successful regeneration in any case.

-Uwe-
 
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winx1

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Hi,
is there even a way to do the regen for this particular model then?

I've tried as per in the video and it doesn't work and i've also tried the coding II input (10016) and that didn't work either.

Problem is even if I fix those errors you mention i'll still be stuck in limp mode.
 
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Uwe

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I'm confident there's a way to force a regen -- provided the soot loading isn't too high yet, and provided the other issues are dealt with first.

-Uwe-
 
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Sebastian

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What are your readings in MVB 104 and 107?
 
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winx1

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readings.png


Hi,

here are the readings as requested, thanks
 
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NEtech

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winx1 said:
Is there even a way to do the regen for this particular model then?
I've tried as per in the video and it doesn't work and i've also tried the coding II input (10016) and that didn't work either.
Problem is even if I fix those errors you mention i'll still be stuck in limp mode.
Click to expand...
Yes there is way for regeneration on every Model.
The problem is, as Uwe wrote, if you don't fix the error, you will not be able to do regeneration!

The ash amount is 0.20 liter, maximum is 036 l (From the your screen shot).
Soot amount calculated is 42.0 g and Soot amount measured is 37.0 g.
The threshold of soot is 38.5 g (MWB 107.2) where you get:
009263 - Diesel Particulate Filter (Bank 1)
P242F - 001 - Restricted/Clogged - MIL ON
If you have 59.5 g in 104.2 you can buy a new filter, if you don't get below that value first!

The procedure showed in the Video is okay, but if your button [Coding II-11] is not greyed out, you may have to use that with the login.
Enough fuel in the tank, temperatures okay, all electrical consumers on.
But as your ECU is not UDS, you start [Basic settings-04] and choose MWB 226 direct.

When MWB 104.2 is above 31.5 g (in your case now, it varies in other cases) the engine will start a regeneration when conditions are correct while driving.

PS. You have not registered the forum yet?
 
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winx1

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Hi,

thanks for the reply.

So from what you are saying it is probably not the DPF that is causing the "limp mode" (power loss) but rather the Mass airflow/throttle body error?

thanks
 
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winx1

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Hi,

I managed to start the test:

dpft1.png


dpft2.png


But when I do full throttle:

dpft3.png


I've tried doing just the brake, brake and accelerator together all different sequences but it doesn't work


any ideas?

thanks
 
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