2022-2023 Audi MIL On with DTC P240700 Evap Leak

Audi has released Technical Service Bulletin (TSB) 2066675/8 to address instances where the Malfunction Indicator Lamp (MIL) illuminates in certain 2022-2023 models, including the 2023 Audi Q8. This TSB specifically targets vehicles that store the diagnostic trouble code (DTC) P240700, related to the Evap leak detection pump circuit.

This bulletin, dated May 10, 2024, supersedes an earlier version, Technical Service Bulletin Group 01 number 24-17, which was dated April 4, 2024. It applies to Model Year 2022 and 2023 Audi vehicles equipped with gasoline engines.

Revision History

Audi's TSB 2066675/8 has undergone several revisions to update affected models and header information:

• Revision 8 (May 10, 2024): Revised header to include updated models.
• Revision 7 (April 4, 2024): Revised header to include updated models. This revision superseded the previous Group 01 number 24-17.
• Revision 6 (November 22, 2023): Revised header to include updated models.

Symptoms

Owners of affected vehicles may notice the following symptom:

• The Malfunction Indicator Lamp (MIL) is illuminated on the dashboard.

Fault Codes / DTCs

When diagnosing the issue, technicians may find the following diagnostic trouble code stored passively or statically in the Engine control module, -J623- (address word 001):

Code	Description
P240700	Evap emission control system leakage diagnosis pump current fluctuating

It is important that the event memory does not contain any other relevant entries for this TSB to apply.

Current Status and Important Warnings

Audi has indicated that a permanent solution for the P240700 issue is currently under development. Until then, specific instructions are provided for dealers and owners.

• Do not replace components: Audi explicitly states, "Do not replace any components for this condition since it will not resolve the customer's concern." Replacing parts will not fix the underlying issue.
• Solution timeline: A solution is expected to be available by the end of the 2nd quarter of 2024, though this is subject to change.

Service Procedure Summary

For vehicles presenting with the "MIL is illuminated" symptom and DTC P240700, Audi's Technical Service Bulletin 2066675/8 outlines the following interim steps for technicians:

1. Clear the DTC: The diagnostic trouble code P240700 should be deleted from the vehicle's memory.
2. Vehicle Release: After clearing the code, the vehicle can be released back to the customer.
3. Customer Communication: Explain to the customer that a permanent solution is anticipated by the end of the second quarter of 2024. Emphasize that no repairs or component replacements are necessary at this time, as they will not resolve the issue.
4. PSS Record Creation: Create a PSS (Pending Service Solutions) record in the PSS application. This can be done via the "Pending Service Solutions (PSS)" link in Access Audi (under Related Links >> Service) or through the Technical Assistance page in Elsa.
5. Related TSB Reference: For specific 2022 and 2023 Q5 PHEV, 2022 Q3, and 2022 2.0L Q7 vehicles, technicians should refer to TSB 2071770, which also addresses the "01 MIL on, DTC P240700 Leak Detection Pump Current Fluctuating" condition.

Warranty Information

Audi states that this Technical Service Bulletin 2066675/8 is for informational purposes only. It is not applicable to any Audi Warranty claims.

Additional Information

All parts and service references mentioned within this TSB (2066675) are subject to change and/or removal at Audi's discretion.

NHTSA ID: 10255556