01 Mil On, DTC P040100 Is Stored In The ECM - TDI (GROUP 01, NO. 23-68)
Reference number: GROUP 01, NO. 23-68
Supersedes refnos: 2064398/1, 2064398/2, 2064398/3, GROUP 01, NO. 23-60, GROUP 01, NO. 23-63
01 MIL ON, DTC P040100 IS STORED IN THE ECM - TDI
TECHNICAL SERVICE BULLETIN
| AUDI: | 2010-2013 A3 TDI |
| GROUP: | 01 - On-Board Diagnostic |
SERVICE INFORMATION
01 23 68 2064398/3 August 11, 2023. Supersedes Technical Service Bulletin Group 01 number 23-63 dated July 25, 2023, for reasons listed below.
| Model(s) | Year | VIN Range | Vehicle-Specific Equipment |
|---|---|---|---|
| A3 TDI | 2010 - 2013 | All | Not Applicable |
CONDITION
| Revision | Date | Purpose |
|---|---|---|
| 3 | - | Revised Required Parts and Tools (Updated part number) |
| 2 | 07/25/2023 | Revised documents (Added attachment) Revised Required Parts and Tools (Updated part numbers) |
| 1 | 07/07/2023 | Initial publication |
Workshop findings:
The following DTC may be stored in the engine control module (ECM), J623 (address word 0001):
- DTC P040100 (Exhaust Gas Recirculation Flow Insufficient Detected).
TECHNICAL BACKGROUND
High soot loads prior to regeneration can cause possible restrictions in the Exhaust Gas Recirculation (EGR) filter.
Tools to assist the technician when checking for charge air system leaks.
PRODUCTION SOLUTION
Not applicable.
SERVICE
Required one-time use items are subject to change and may not be listed.
When diagnosing a vehicle with the DTC P040100, P2002, or P240F perform the following:
- Remove the EGR filter from the Diesel Particulate Filter (DPF) and swipe the inside of the exhaust pipe at the EGR filter connection point using a clean cloth or your finger.
- If your finger or the cloth comes out with black soot:
- Replace the DPF & EGR filter together. The engine must be running correctly with no faults stored to perform the next steps.
- Read out 01 ECM control module OBD Basic Settings block 67 with engine at idle and at operating temperature. Select activate and monitor field 3 when EGR is in OFF position.
- If the MAF actual value is equal to or greater than 540 mg/h, proceed to smoke testing below (there is likely a leak within the intake system).
- If the value is less than 540 mg/h, proceed to the inspection of the snow flap and air filter (TSB attachment). There is no need to smoke test.
- Smoke test the charge air system for leaks if MAF value is 540 or great (see procedure below).
Tip: Proper intake airflow is essential for the longevity of the DPF. If a vehicle is found to have a damaged DPF, it is advised to inspect the condition of the intake air filter and verify resting position of the warm air valve (after the vehicle has cooled, see attachment). If the air filter is dirty, advise replacement.
If there is no soot on your finger or the cloth, continue with GFF diagnostics, this bulletin does not apply.
NOTE: When replacing the DPF for the fault P0401, P2002, or P240F it is important to replace both the DPF and the EGR filter together, as soot accumulation in the EGR filter is undesired. It is NOT necessary to replace any other components for this fault (i.e. NOx Storage Catalyst, Sulfur Catalyst, Exhaust Flap, EGR Cooler). These components should be reinstalled in the vehicle with the new DPF and EGR filter. If the particulate filter was replaced, an adaptation must be performed in Guided Functions.01 Mil On, DTC P040100 Is Stored In The ECM - TDI (GROUP 01, NO. 23-68)
WARNING: This page is about the A3 2.0T, 2.0L Eng VIN E, Automatic DCT Trans, which is a different variant/trim than selected.Publication date: 2023-08-11
Reference number: GROUP 01, NO. 23-68
Supersedes refnos: 2064398/1, 2064398/2, 2064398/3, GROUP 01, NO. 23-60, GROUP 01, NO. 23-6301 MIL ON, DTC P040100 IS STORED IN THE ECM - TDI 01 MIL ON, DTC P040100 IS STORED IN THE ECM - TDI
TECHNICAL SERVICE BULLETIN
Reference Number(s): GROUP 01, NO. 23-68 (2064398/3), Date of Issue: August 11, 2023
Superceded Bulletin(s): GROUP 01, NO. 23-63, Date of Issue: July 25, 2023AUDI: 2010-2013 A3 TDI GROUP: 01 - On-Board Diagnostic SERVICE INFORMATION
01 23 68 2064398/3 August 11, 2023. Supersedes Technical Service Bulletin Group 01 number 23-63 dated July 25, 2023, for reasons listed below.
APPLICABLE MODELS AND YEARSModel(s) Year VIN Range Vehicle-Specific Equipment A3 TDI 2010 - 2013 All Not Applicable CONDITION
REVISION HISTORYRevision Date Purpose 3 - Revised Required Parts and Tools (Updated part number) 2 07/25/2023 Revised documents (Added attachment)
Revised Required Parts and Tools (Updated part numbers)1 07/07/2023 Initial publication Workshop findings:
The following DTC may be stored in the engine control module (ECM), J623 (address word 0001):
- DTC P040100 (Exhaust Gas Recirculation Flow Insufficient Detected).
TECHNICAL BACKGROUND
High soot loads prior to regeneration can cause possible restrictions in the Exhaust Gas Recirculation (EGR) filter.
Tools to assist the technician when checking for charge air system leaks.
PRODUCTION SOLUTION
Not applicable.
SERVICE
NOTE: Review the ELSA repair procedures, making certain to address the replacement of fasteners as indicated in the repair manual.Required one-time use items are subject to change and may not be listed.
When diagnosing a vehicle with the DTC P040100, P2002, or P240F perform the following:
- Remove the EGR filter from the Diesel Particulate Filter (DPF) and swipe the inside of the exhaust pipe at the EGR filter connection point using a clean cloth or your finger.
- If your finger or the cloth comes out with black soot:
- Replace the DPF & EGR filter together. The engine must be running correctly with no faults stored to perform the next steps.
- Read out 01 ECM control module OBD Basic Settings block 67 with engine at idle and at operating temperature. Select activate and monitor field 3 when EGR is in OFF position.
- If the MAF actual value is equal to or greater than 540 mg/h, proceed to smoke testing below (there is likely a leak within the intake system).
- If the value is less than 540 mg/h, proceed to the inspection of the snow flap and air filter (TSB attachment). There is no need to smoke test.
- Smoke test the charge air system for leaks if MAF value is 540 or great (see procedure below).
Tip: Proper intake airflow is essential for the longevity of the DPF. If a vehicle is found to have a damaged DPF, it is advised to inspect the condition of the intake air filter and verify resting position of the warm air valve (after the vehicle has cooled, see attachment). If the air filter is dirty, advise replacement.
If there is no soot on your finger or the cloth, continue with GFF diagnostics, this bulletin does not apply.
NOTE: When replacing the DPF for the fault P0401, P2002, or P240F it is important to replace both the DPF and the EGR filter together, as soot accumulation in the EGR filter is undesired. It is NOT necessary to replace any other components for this fault (i.e. NOx Storage Catalyst, Sulfur Catalyst, Exhaust Flap, EGR Cooler). These components should be reinstalled in the vehicle with the new DPF and EGR filter. If the particulate filter was replaced, an adaptation must be performed in Guided Functions.01 Mil On, DTC P040100 Is Stored In The ECM - TDI (GROUP 01, NO. 23-68)
WARNING: This page is about the A3 2.0T, 2.0L Eng VIN E, Automatic DCT Trans, which is a different variant/trim than selected.Publication date: 2023-08-11
Reference number: GROUP 01, NO. 23-68
Supersedes refnos: 2064398/1, 2064398/2, 2064398/3, GROUP 01, NO. 23-60, GROUP 01, NO. 23-6301 MIL ON, DTC P040100 IS STORED IN THE ECM - TDI 01 MIL ON, DTC P040100 IS STORED IN THE ECM - TDI
TECHNICAL SERVICE BULLETIN
Reference Number(s): GROUP 01, NO. 23-68 (2064398/3), Date of Issue: August 11, 2023
Superceded Bulletin(s): GROUP 01, NO. 23-63, Date of Issue: July 25, 2023AUDI: 2010-2013 A3 TDI GROUP: 01 - On-Board Diagnostic SERVICE INFORMATION
01 23 68 2064398/3 August 11, 2023. Supersedes Technical Service Bulletin Group 01 number 23-63 dated July 25, 2023, for reasons listed below.
APPLICABLE MODELS AND YEARSModel(s) Year VIN Range Vehicle-Specific Equipment A3 TDI 2010 - 2013 All Not Applicable CONDITION
REVISION HISTORYRevision Date Purpose 3 - Revised Required Parts and Tools (Updated part number) 2 07/25/2023 Revised documents (Added attachment)
Revised Required Parts and Tools (Updated part numbers)1 07/07/2023 Initial publication Workshop findings:
The following DTC may be stored in the engine control module (ECM), J623 (address word 0001):
- DTC P040100 (Exhaust Gas Recirculation Flow Insufficient Detected).
TECHNICAL BACKGROUND
High soot loads prior to regeneration can cause possible restrictions in the Exhaust Gas Recirculation (EGR) filter.
Tools to assist the technician when checking for charge air system leaks.
PRODUCTION SOLUTION
Not applicable.
SERVICE
NOTE: Review the ELSA repair procedures, making certain to address the replacement of fasteners as indicated in the repair manual.Required one-time use items are subject to change and may not be listed.
When diagnosing a vehicle with the DTC P040100, P2002, or P240F perform the following:
- Remove the EGR filter from the Diesel Particulate Filter (DPF) and swipe the inside of the exhaust pipe at the EGR filter connection point using a clean cloth or your finger.
- If your finger or the cloth comes out with black soot:
- Replace the DPF & EGR filter together. The engine must be running correctly with no faults stored to perform the next steps.
- Read out 01 ECM control module OBD Basic Settings block 67 with engine at idle and at operating temperature. Select activate and monitor field 3 when EGR is in OFF position.
- If the MAF actual value is equal to or greater than 540 mg/h, proceed to smoke testing below (there is likely a leak within the intake system).
- If the value is less than 540 mg/h, proceed to the inspection of the snow flap and air filter (TSB attachment). There is no need to smoke test.
- Smoke test the charge air system for leaks if MAF value is 540 or great (see procedure below).
Tip: Proper intake airflow is essential for the longevity of the DPF. If a vehicle is found to have a damaged DPF, it is advised to inspect the condition of the intake air filter and verify resting position of the warm air valve (after the vehicle has cooled, see attachment). If the air filter is dirty, advise replacement.
If there is no soot on your finger or the cloth, continue with GFF diagnostics, this bulletin does not apply.
NOTE: When replacing the DPF for the fault P0401, P2002, or P240F it is important to replace both the DPF and the EGR filter together, as soot accumulation in the EGR filter is undesired. It is NOT necessary to replace any other components for this fault (i.e. NOx Storage Catalyst, Sulfur Catalyst, Exhaust Flap, EGR Cooler). These components should be reinstalled in the vehicle with the new DPF and EGR filter. If the particulate filter was replaced, an adaptation must be performed in Guided Functions.
Supporting Diagrams & Locations
Reference material from the factory manual for this diagnostic procedure.
Diagram2.0L Turbo
Diagram2.0L Turbo Diesel
Diagram2.0L Turbo
Diagram2.0L Turbo Diesel
Diagram2.0L Turbo
Diagram2.0L Turbo Diesel
Location2.0L - Diesel Fuel Injection - Engine Code(S): CBEA
Location2.0L - MULTIPORT Fuel Injection - Engine Code(S): CBFA & CCTA
Location00 Software Version Management (SVM), Operating Instructions (GROUP 00, NO. 21-55)
Location00 Software Version Management (SVM), Operating Instructions (GROUP 00, NO. 21-55)
Fuse/Relay27 48V Reference: Charging 48V Battery With 12V Charger DTC P0A7D00/P0B2900 (GROUP 27, NO. 24-71)
Fuse/Relay27 48V Reference: Charging 48V Battery With 12V Charger DTC P0A7D00/P0B2900 (GROUP 27, NO. 24-71)
Fuse/Relay27 48V Reference: Charging 48V Battery With 12V Charger DTC P0A7D00/P0B2900 (GROUP 27, NO. 24-71)
Fuse/Relay27 48V Reference: Charging 48V Battery With 12V Charger DTC P0A7D00/P0B2900 (GROUP 27, NO. 24-71)