2021-2026 Audi Door Lock Complaints TSB 2063236/10

Audi has issued Technical Service Bulletin (TSB) 2063236/10 to address various complaints related to the front or rear door locks in a wide range of its 2021-2026 models. This TSB provides diagnostic and repair guidance for issues such as doors not opening, warning messages, and specific diagnostic trouble codes (DTCs).

Symptoms

Owners of affected Audi vehicles may experience one or more of the following symptoms related to door lock complaints:

• The front or rear door (on either the left or right side) cannot be opened from either the outside or the inside.
• Warning messages appear, such as those related to the exit warning system or central locking, concerning the front or rear door.
• The vehicle is locked, but it is still possible to open a door without using a key.
• The door locks may not function as expected.

Fault Codes / DTCs

When diagnosing these door lock complaints, technicians may find one or more of the following diagnostic trouble codes (DTCs) logged in the vehicle's system, either intermittently or statically:

Code	Description	Module
B122D29	Lock unit for central locking implausible signal	Door electronics
B122B13	Central locking motors Open circuit	Door electronics
B14FF29	Motor for child safety lock implausible signal	Door electronics

Diagnosis and Trigger Conditions

The door lock system in Audi vehicles uses a microswitch to transmit electrical signals from the interior or exterior door handle to the door control unit. This activates an electric motor that releases the rotary latch, allowing the door to open. Mechanical Bowden cables also provide a backup connection for door operation, especially if the microswitch or control motor fails.

Before proceeding with any repairs, technicians are advised to first determine if the customer's complaint is due to incorrect operation rather than a fault. This involves clarifying details with the customer, such as whether the interior door handle is pulled too quickly or past its end stop, or if the door opens after pulling the interior handle twice or using the exterior handle.

If the Audi e-tron door lock complaints persist, the event memory in the control unit should be read out and erased. After cycling the ignition and opening/closing the door, the system should be rechecked for re-logged fault entries. If no faults reappear, the door lock is considered functional.

Repair Procedure Summary

If the door lock complaints persist and DTCs are re-logged after initial checks, a mechanical inspection of the door components is required:

1. Electrical Wiring and Bowden Cables: Inspect the electrical wiring and mechanical Bowden cables for the door lock and interior/exterior door handles. Technicians will look for any damage or irregularities, such as twisting, incorrect routing, water or ice traces, or stiffness. Any affected components should be replaced.
2. Exterior Door Handle Return: Check if the exterior door handle returns to its flush original position after being operated. If it does not, further action may involve modifying or replacing the door handle, potentially referencing TSB 2060196, which addresses exterior door handles not returning to the zero position.
3. Door Setting: Verify the door setting for ease of movement and correct closing, adjusting as necessary.

For vehicles equipped with a convenience key sensor on the door handle, technicians should also educate owners about proper operation to avoid accidental locking or unlocking due to touching the sensor incorrectly while opening or closing the door.

Owner Action

If you are experiencing Audi e-tron door lock complaints or any of the symptoms described, it is recommended to schedule an appointment with an authorized Audi service center. While this TSB is informational for vehicles outside of warranty, repairs performed under warranty will follow the guidelines outlined in the bulletin. The service center will perform the necessary diagnostic steps, including checking for DTCs B122D29, B14FF29, or B122B13, and carry out the appropriate inspections and repairs.

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Source: NHTSA ID: 11018964