OK, so I've had a few issues with my A4 B7 Cabriolet smoking badly (sometimes blue, sometimes black, sometimes never).
When I bought it about a month ago, VCDS said that there was a fault with the G450 sensor, and I kept getting P2002 and the car would go into limp mode.
Anyway, I replaced the G450 sensor, but the original sensor that was on it was literally just 'hooked' onto the bolt in the engine bay, and the thicker of the two hoses, looked to have frayed a bit inside.
I imagine that the sensor had been replaced at some point, and that a small slit was put in the end of the hsoe when prying it off with a small screwdriver, so the end of the hose was cut with a blunt knife. That's my best guess.
So I replaced the sensor, done the CANBUS method for adaptation on VCDS, and went on my way. All was good for about a day, then smoking again and same issues. Other than the smoke and the error, the can ran pretty well, before replacing the sensor as well as afterwards.
I then removed and cleaned out the EGR valve and when I started the car first time, it shuddered and blew lots of black smoke, then instantly went to running as it had been previously.
Fast forward to a few days ago. I go on partslink24.com and pay for a 24 hour access period, and discover that the G450 sensor which I had installed, and which was on the car when I got it, are not the correct part.
Original sensor was BOSCH 0 281 002 710.
Sensor I changed to was BOSCH 0 281 006 005.
After looking at PL24, I changed it to 076906051A
Now, there is no smoke from the car. Brilliant!
However, I know get the P2002 code come back every so often and the Engine Light comes on.
At first, a pro tuner diagnosed the engine over the phone and said no DPF was installed, only a CAT, but surely the G450 shows that a DPF is installed - the two hoses on the G450 go to the DPF, right?
So now, my question is this.
When I installed the new sensor, I followed this procedure:
I turn on ignition and use VCDS to goto "Coding II" in "01 - Engine"
Enter the 306xx something or other code that appears for G450 adaptation and click 'Do It!'.
I get a message saying 'Coding accepted' or words to that affect.
Switch ignition off and remove keys.
Wait for 1 minute
Turn ignition on, then start engine.
That should be everything done, right?
The Wiki pages say that "After the key is cycled back on the adaptation should be completed. If it is not completed, proceed with the next steps"
How do I check that the adaptation has worked correctly?
I've been told to check the MVB for Soot Load or Ash Level, but cannot find any reference to that anywhere.
Should I need to force a regen on VCDS now and go for a drive whilst monitoring VCDS for the regen status?
Here is the latest autoscan from VCDS which I done tonight just after the Check Engine light came on.
When I bought it about a month ago, VCDS said that there was a fault with the G450 sensor, and I kept getting P2002 and the car would go into limp mode.
Anyway, I replaced the G450 sensor, but the original sensor that was on it was literally just 'hooked' onto the bolt in the engine bay, and the thicker of the two hoses, looked to have frayed a bit inside.
I imagine that the sensor had been replaced at some point, and that a small slit was put in the end of the hsoe when prying it off with a small screwdriver, so the end of the hose was cut with a blunt knife. That's my best guess.
So I replaced the sensor, done the CANBUS method for adaptation on VCDS, and went on my way. All was good for about a day, then smoking again and same issues. Other than the smoke and the error, the can ran pretty well, before replacing the sensor as well as afterwards.
I then removed and cleaned out the EGR valve and when I started the car first time, it shuddered and blew lots of black smoke, then instantly went to running as it had been previously.
Fast forward to a few days ago. I go on partslink24.com and pay for a 24 hour access period, and discover that the G450 sensor which I had installed, and which was on the car when I got it, are not the correct part.
Original sensor was BOSCH 0 281 002 710.
Sensor I changed to was BOSCH 0 281 006 005.
After looking at PL24, I changed it to 076906051A
Now, there is no smoke from the car. Brilliant!
However, I know get the P2002 code come back every so often and the Engine Light comes on.
At first, a pro tuner diagnosed the engine over the phone and said no DPF was installed, only a CAT, but surely the G450 shows that a DPF is installed - the two hoses on the G450 go to the DPF, right?
So now, my question is this.
When I installed the new sensor, I followed this procedure:
I turn on ignition and use VCDS to goto "Coding II" in "01 - Engine"
Enter the 306xx something or other code that appears for G450 adaptation and click 'Do It!'.
I get a message saying 'Coding accepted' or words to that affect.
Switch ignition off and remove keys.
Wait for 1 minute
Turn ignition on, then start engine.
That should be everything done, right?
The Wiki pages say that "After the key is cycled back on the adaptation should be completed. If it is not completed, proceed with the next steps"
How do I check that the adaptation has worked correctly?
I've been told to check the MVB for Soot Load or Ash Level, but cannot find any reference to that anywhere.
Should I need to force a regen on VCDS now and go for a drive whilst monitoring VCDS for the regen status?
Here is the latest autoscan from VCDS which I done tonight just after the Check Engine light came on.
Code:
Friday,26,June,2020,23:43:45:43836
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.1.0 (x64) HEX-V2 CB: 0.4508.4
Data version: 20200331 DS317.0
www.Ross-Tech.com
VIN: WAUZZZ8H88K013250 License Plate: FE08
Mileage: 142560km-88582mi Repair Order:
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Chassis Type: 8H (8H - Audi Cabrio B6/B7 (2003 > 2009))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 26 36 37 45 46 55 56 57
63 65 67 73 75 76 77
VIN: WAUZZZ8H88K013250 Mileage: 142560km-88582miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 03G-906-016-BPW.clb
Part No SW: 03G 906 016 LQ HW: 03G 906 016 KP
Component: R4 2,0L EDC 000CG 1717
Revision: --H06--- Serial number:
Coding: 0000076
Shop #: WSC 66565 257 00032
VCID: 7DA7FCDBC1FBDD2338D-8028
2 Faults Found:
008194 - Particulate Trap Bank 1
P2002 - 000 - Efficiency Below Threshold
Freeze Frame:
Fault Status: 01110000
Fault Priority: 2
Fault Frequency: 4
Reset counter: 255
Mileage: 142371 km
Time Indication: 0
Freeze Frame:
RPM: 1512 /min
Speed: 71.0 km/h
(no units): 0.00
(no units): -15.30
Mass Flow: 19.91 g/s
Temperature: 324.0°C
Temperature: 29.7°C
005697 - Please check DTC Memory of A/C Controller
P1641 - 000 - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 6
Fault Frequency: 40
Reset counter: 255
Mileage: 142395 km
Time Indication: 0
Freeze Frame:
RPM: 840 /min
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 13.76 V
Bin. Bits: 00000000
Temperature: 71.1°C
(no units): 0.0
Readiness: 1 1 0 0 0
-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 01J-927-156.lbl
Part No SW: 8E5 910 155 J HW: 01J 927 156 HT
Component: V30 01J 2.0l PD RdW 0040
Revision: 00000012 Serial number: 00000002103869
Coding: 0000001
Shop #: WSC 04940 001 00001
VCID: 313F10EB4D23E943EC5-8064
No fault code found.
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-910-517.clb
Part No SW: 8E0 910 517 H HW: 8E0 614 517 BF
Component: ESP8 FRONT H06 0140
Revision: 00000000 Serial number: 00000000000000
Coding: 0004402
Shop #: WSC 63252 001 1048576
VCID: 2C01019F6A0184ABDF3-8078
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8E0-820-043.lbl
Part No: 8E0 820 043 BL
Component: A4 Klimaautomat 3233
Coding: 00100
Shop #: WSC 00672
VCID: 6C81C19FAF9144AB9F3-50F4
No fault code found.
-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: 8E0-907-279-8EC.lbl
Part No: 8E0 907 279 N
Component: int. Lastmodul ECE 0907
Coding: 20001
Shop #: WSC 00672
VCID: 3D273CDB846B1D2378D-4AA4
No fault code found.
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8H0-959-655-94.lbl
Part No SW: 8H0 959 655 G HW: 8H0 959 655 G
Component: Airbag 9.42 H01 1840
Revision: 92H01184 Serial number: 003CZ0008MD7
Coding: 0071114
Shop #: WSC 63252 001 1048576
VCID: 3E253BD78C7D063B617-806A
Subsystem 1 - Serial number: 6332BRB403876EFB2
Subsystem 2 - Serial number: 6342BRB4038D8403L
Subsystem 3 - Serial number: 63729RB4037B0B95T
Subsystem 4 - Serial number: 63829RB4037B015EP
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 8E0-953-549.lbl
Part No: 8E0 953 549 Q
Component: Lenksáulenmodul 0801
Coding: 03111
Shop #: WSC 00672
VCID: 41DF402BF89379C31C5-4AA4
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8E0-920-9xx-8EC.lbl
Part No SW: 8H0 920 951 D HW: 8H0 920 951 D
Component: KOMBI+WFS 4 H14 0200
Revision: 0200 Serial number: 00000000000000
Coding: 0006411
Shop #: WSC 56029 002 1048576
VCID: 2E050B975C0DF6BBF17-50F4
1 Fault Found:
01302 - Control Module for Telematic (J499)
004 - No Signal/Communication
-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 8E0-920-9xx-8EC.lbl
Part No SW: 8H0 920 951 D HW: 8H0 920 951 D
Component: KOMBI+WFS 4 H14 0200
Revision: 0200 Serial number: 00000000000000
Coding: 0006411
Shop #: WSC 56029 002 1048576
VCID: 2E050B975C0DF6BBF17-50F4
1 Fault Found:
01302 - Control Module for Telematic (J499)
004 - No Signal/Communication
-------------------------------------------------------------------------------
Address 26: Auto Roof Labels: 8H0-959-255.lbl
Part No: 8H0 959 255 A
Component: VSG B6 CABRIO 7094
Shop #: WSC 00672 785 00200
VCID: 343119FFB221DC6B873-50F4
2 Faults Found:
02000 - Switch Position
008 - Implausible Signal - Intermittent
01992 - Convertible Top Compartment Latch Switch (F293); Unlock
008 - Implausible Signal - Intermittent
-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: 8E0-951-177.lbl
Part No: 8H0 951 178
Component: Innenraumueberw. 0411
Coding: 00001
Shop #: WSC 00000
VCID: 6FBBD6939E87BFB3BA1-50AE
No fault code found.
-------------------------------------------------------------------------------
Address 46: Central Conv. Labels:. 8E0-959-433-MAX.clb
Part No: 8H0 959 433 M
Component: Komfortgerát T3B 5442
Coding: 06911
Shop #: WSC 00672
VCID: 3E253BD7896D063B617-4AA4
Subsystem 1 - Part No: 8H2959802D
Component: Tõrsteuer.FS BRM 0205
Component: Tõrsteuer.BF BRM 0205
4 Faults Found:
01134 - Alarm Horn (H12)
49-00 - No Communications
01616 - Signal Wire to Interior Monitor
79-10 - Please Check Fault Codes - Intermittent
01616 - Signal Wire to Interior Monitor
49-10 - No Communications - Intermittent
01616 - Signal Wire to Interior Monitor
29-10 - Short to Ground - Intermittent
-------------------------------------------------------------------------------
Address 77: Telephone Labels: 8P0-862-335.lbl
Part No SW: 8P0 862 335 Q HW: 8P0 862 335 Q
Component: FSE_255x BT H26 0350
Revision: 00000000 Serial number: 00000005556949
Coding: 0011822
Shop #: WSC 00672 785 00200
VCID: 44D1493FE2816CEB373-50D0
No fault code found.
End------(Elapsed Time: 05:59, VBatt start/end: 12.3V/12.2V, udsna)--------