Adapting G450 pressure sensor

Thomas Lilleland · Sep 19, 2016

Hello Guys, this is my first post on this forum and was hoping for some help.

I have replaced the pressure sensor called G450, the one connected to the DPF. The dealership told me that the sensor needed to be adapted, so then the search for excact instructions started.

I found these instructions
Select engine (01)
Login or coding 11
Type 30605 in the box and login.

But i get a error message when i hit activate, says that is not a valid command and that i need to turn of my ignition before i try another code. I was hoping you guys know a alternative.

Here is my autoscan:

Code:

Chassis Type: 4F (4L0)
Scan: 01 02 03 05 07 08 09 0E 15 16 17 19 34 37 42 46 47 4F 52 53
          55 56 61 62 69 72 76 77

VIN: WAUZZZ4F27N050540   Mileage: 161750km-100506miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 1010
02-Auto Trans -- Status: Malfunction 0010
03-ABS Brakes -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
07-Control Head -- Status: Malfunction 0010
08-Auto HVAC -- Status: Malfunction 0010
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: Malfunction 0010
19-CAN Gateway -- Status: Malfunction 0010
34-Level Control -- Status: Malfunction 0010
37-Navigation -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
4F-Centr. Electr. II -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: Malfunction 0010
55-Headlight Range -- Status: Malfunction 0010
56-Radio -- Status: OK 0000
61-Battery Regul. -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
69-Trailer -- Status: Malfunction 0010
72-Door, Rear Right -- Status: OK 0000
76-Park Assist -- Status: OK 0000
77-Telephone -- Status: Cannot be reached 1100
 
-------------------------------------------------------------------------------
Address 01: Engine        Labels: Redir Fail!
   Part No SW: 4F5 910 401 E    HW: 4F0 907 401 C
   Component: 2.7L V6TDI   000AG  0010  
   Revision: --H03---    Serial number:               
   Coding: 0011372
   Shop #: WSC 02335 785 00200
   VCID: 2345BC3EE2FD275A93-8076

1 Fault Found:
009263 - Diesel Particulate Filter (Bank 1) 
               P242F - 001 - Restricted/Clogged - MIL ON
             Freeze Frame:
                    Fault Status: 11100001
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 161750 km
                    Time Indication: 0
                    Date: 2016.09.19
                    Time: 17:45:53

             Freeze Frame:
                    RPM: 0 /min
                    (no units): 0.0
                    (no units): 42.0
                    (no units): 35.5
                    Temperature: 23.6°C
                    Absolute Pres.: 0.0 mbar
                    Pressure: 0 mbar

Readiness: 1 1 1 1 1

MartinsX · Sep 19, 2016

Have You made complete autoscan before You started to replace parts of this car? Why do You think G450 was defective?
P.S. Several TDI engines have different procedures for DPF regeneration, G450 adaption etc. In Ross-Tech Wiki only couple of those are covered. First of all You should check have You got the latest version of VCDS. We can't see what version You use, as You have posted only some part, not complete autoscan.

Uwe · Sep 19, 2016

His version is current.

Looks like he did an Auto-Scan but truncated it after the Engine.

On this engine, I believe a new G450 would be introduced to the ECU by storing the value 0001 into Adaptation channel 083.

-Uwe-

DrPeter · Sep 20, 2016

Hello,

On this engine, I believe a new G450 would be introduced to the ECU by storing the value 0001 into Adaptation channel 083.

-Uwe-

- Uwe is spot on,

Adaptation Channel [083] is for the "Differential Pressure Sensor (G450) Zero Compensation"

Use this channel when replacing the G450, prior to the reset but make a note of the Measuring Value Block group [102] field (3), this will be the current 'offset' value and this should change after the reset is performed.

- Important to note:

... after the new Value [00001] has been saved and the Zero Compensation has been initiated, you will need to cycle the Ignition OFF and wait ~10 Seconds before switching it back ON.

Confirm the Adaptation in the MVB-102.

drpeter

Adapting G450 pressure sensor

Thomas Lilleland

Verified VCDS User

MartinsX

Verified VCDS User

Uwe

Benevolent Dictator

DrPeter

Ross-Tech Employee