2021 Audi Q8 Power Rear Lid Not Closing TSB 2064476/3

Audi has released Technical Service Bulletin (TSB) 2064476/3 to address concerns regarding the power rear lid not closing completely or failing to engage its secondary latch position on various 2021 Audi models, including the 2021 Audi Q8. This bulletin, issued on February 19, 2024, supersedes an earlier TSB, Group 55 number 21-60, dated September 30, 2021. It provides updated information on diagnosing and repairing the underlying issues that can cause the power rear lid to malfunction.

Owners experiencing issues with their 2021 Audi Q8 power rear lid not closing fully may notice specific symptoms and diagnostic trouble codes (DTCs) related to the rear lid control module J605.

Symptoms

Owners typically report the following issues:

• The power rear lid does not close completely.
• The rear lid lock does not engage in the secondary latching position.
• The instrument cluster indicates that the rear lid is open.

Fault Codes / DTCs

When these symptoms occur, one or more of the following diagnostic trouble codes (DTCs) may be stored in the rear lid control module J605 (address word 006D):

Code	Description
B113E29	Closing assistance Range/Performance
B12E015	Rear lid closing assist motor Open circuit/short circuit to B+
B113E07	Pull-shut asst. mechanical malfunction

Diagnosis / Trigger Conditions

Audi has identified several failure modes that can lead to the power rear lid malfunction and the storage of the aforementioned DTCs:

1. Blocked Internal Clutch: The internal clutch of the closing assist motor may become blocked due to a dimensional deviation. This condition can lead to DTC B113E07 being stored.
2. Improper Solder Joint: An improper solder joint inside the closing assist motor can cause a short circuit. This specific failure mode is associated with DTC B12E015.
3. Detached Bowden Cable Clip: The Bowden cable clip can detach from the closing assist motor housing. This mechanical issue can also result in DTC B113E07.

Repair Procedure Summary

To resolve the issue of the 2021 Audi Q8 power rear lid not closing, the recommended repair involves replacing the rear lid closing assist motor. This procedure should be performed according to the detailed instructions provided in the Elsa Repair Manual. The TSB 2064476/3 outlines the specific labor operations and diagnostic times for this repair.

Required Parts and Tools

Technicians will need specific parts and tools to perform this repair:

• Parts:
  • Liftgate motor, part number 3V5827887C
  • Liftgate motor (Q3), part number 5TA827887C
  • Fasteners, bolts, nuts, and screws as needed, referenced in ETKA/ELSA and the Repair Manual.
• Tools:
  • VAS 6160/VAS 6150 (VAS tester with the current version of ODIS, Windows 10).

Warranty Information

This repair is covered under warranty for vehicles up to 48 months or 50,000 miles. For Certified Pre-Owned (CPO) vehicles, coverage is provided under claim type G10, subject to owner verification. If the vehicle is outside of its warranty period, this Technical Service Bulletin serves as informational guidance only. Warranty claims must adhere to the Audi Warranty Policies and Procedures Manual, and are subject to review or audit by Audi Warranty. The claim comment should reference TSB 2064476/3.

Owner Action

If you are experiencing any of the symptoms described, such as your 2021 Audi Q8 power rear lid not closing completely or an instrument cluster warning for an open rear lid, it is recommended to schedule an appointment with an authorized Audi dealership. They can diagnose the issue, confirm the presence of DTCs B113E29, B12E015, or B113E07, and perform the necessary repair by replacing the rear lid closing assist motor.

Source: NHTSA ID 10250560