01 Mil On (DTC P2457) Stored In ECM (GROUP 01, NO. 18-53)
Reference number: GROUP 01, NO. 18-53
Supersedes refnos: 2050258/1
01 MIL ON (DTC P2457) STORED IN ECM
TECHNICAL SERVICE BULLETIN
| AUDI: | A3 2010 - 2013 |
| GROUP: | 01 - On-Board Diagnostic |
APPLICABLE MODELS AND YEARS
01 18 53 2050258/1 February 12, 2018.
| Model(s) | Year | VIN Range | Vehicle-Specific Equipment |
|---|---|---|---|
| A3 | 2010 - 2013 | All | TDI |
CONDITION
Customer statement:
- MIL on
Workshop findings:
The following DTC may be stored in the engine control module (ECM), J623 (address word 0001):
- DTC P2547 (Exhaust Gas Recirculation Cooler Efficiency Below Threshold)
TECHNICAL BACKGROUND
A reduction of flow inside the heater core will lead to reduced flow through the EGR cooler. This reduced flow can cause the fault P2457 to set in the ECM.
PRODUCTION SOLUTION
The 2.0L TDI (CBEA) engine is no longer produced.
SERVICE
P2457 Exhaust Gas Recirculation Cooler Efficiency Below Threshold:
If the vehicle has fault P2457 check the inlet and outlet side temperature of the EGR cooler and the heater core. If there is a substantial difference in the temperature, flush the cooling system using the procedure below before replacing the heater core.
Cooling system cleaning procedure:
In order to restore the cooling system to normal specification the coolant must be removed with the following procedure to remove the contaminants and restore the coolant to the proper PH level and coolant percentage for optimal protection.
- Drain the coolant per Repair Manual, Engine >> Engine Mechanical >> Repair Group 19 Cooling System >> General Information >> Cooling System, Draining and Filling.
- Refill cooling system using a 50/50 mixture of coolant & distilled water.
- Start engine and bring to operating temperature. Let engine idle for 5 minutes.
- Repeat step 1 and drain coolant per Repair Manual, Engine >> Engine Mechanical >> Repair Group 19 Cooling System >> General Information >> Cooling System, Draining and Filling .
- Replace heater core according to the Repair Manual, Heating Ventilation and Air Cond >> 87-Air Conditioning >> Heater Core of A/C Unit (Heater), Removing and Installing .
- Refill cooling system using a 50/50 mixture of coolant & distilled water.
WARRANTY
| Claim Type: |
|
||
| Service Number: | 8023 | ||
| Damage Code: | 0016 | ||
| Labor Operations: | Coolant drain + fill | 1938 1737 | 90 TU |
| Radio remove + reinstall | 9130 1900 | 30 TU | |
| Control remove + reinstall | 8704 1950 | 30 TU | |
| Console remove + reinstall | 6817 1903 | 90 TU | |
| Heater core remove + reinstall | 8023 1950 | 190 TU | |
| Diagnostic Time: | GFF - Checking and clearing fault codes included in existing labor operations | 0150 0000 | Time stated on diagnostic protocol (Max 40 TU) |
| Road test prior to service procedure | No allowance | 0 TU | |
| Road test after service procedure | 0121 0004 | 10 TU | |
| Claim Comment: | As per TSB #2050258/1 | ||
All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures Manual . Claims are subject to review or audit by Audi Warranty.
REQUIRED PARTS AND TOOLS
| Part Number | Part Description | Quantity |
|---|---|---|
| 1K0 819 031 E | Heater core | 1 |
| G A13 A8J M1 | Coolant concentrate (1.5ltr.) | 8 |
ADDITIONAL INFORMATION
All parts and service references provided in this TSB (2050258) are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information. Please check the Repair Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.
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