2021 Audi Q5 e / A7 e MIL On P0E9700 TSB

Symptoms

Owners of affected 2021 Audi Q5 e quattro and A7 e quattro models may notice the Malfunction Indicator Lamp (MIL) illuminating on the dashboard, indicating a potential issue with the vehicle's electric drive system. This symptom is directly linked to the Audi Q5 e P0E9700 fault.

Fault Codes / DTCs

When diagnosing the issue, technicians will find Diagnostic Trouble Code (DTC) P0E9700 stored in the electric drive power and control electronics (J841, address word 0051). This DTC is typically recorded as a passive/sporadic error.

Technical Background

Audi has identified that the capacitor tolerance within the electric drive power and control electronics is not being correctly accounted for. This discrepancy leads to an imbalance in the relationship between capacity A and capacity B, causing the system to operate outside specifications and trigger the DTC P0E9700.

Important Warnings

During the software update procedure, it is critical to prevent the high-voltage battery from charging. To avoid potential damage to high-voltage components, the high-voltage charging cable on vehicles with high-voltage components MUST be unplugged BEFORE the SVM code is entered.

Repair Procedure Summary

The resolution for the Audi Q5 e P0E9700 issue involves updating the software of the electric drive power and control electronics, specifically the J841 control unit. This procedure requires following the instructions outlined in Technical Service Bulletin 2011732, titled "00 Software Version Management (SVM), operating instructions." The update is performed using a specific SVM action code.

Required Tools or Parts

The software update utilizes new software part numbers to resolve the capacitor tolerance issue. The SVM action code required for the update is 51A003. For A7 and Q5 models with engine/transmission code DLGA/0DK, the old software part number 80A907080A (version 0009) will be updated to new software part number 80A907080B (version 0102).

Warranty Information

This Technical Service Bulletin (TSB 93 24 95 2063043/2) provides specific warranty claim details for the software update. The Service Number is 9350, and the Damage Code is 0040. Labor operations for the software update, including checking for DTCs, are coded as 01510000. Diagnostic time is GFF. Warranty claims must adhere to the Audi Warranty Policies and Procedures Manual. If the vehicle is outside of warranty, this TSB serves as informational guidance only.

Superseded Bulletin

This TSB, 93 24 95 2063043/2, supersedes Technical Service Bulletin Group 93 number 21-54, which was dated August 30, 2021. The revision includes updated warranty information and workshop findings.

NHTSA ID: 11005975