2020-2025 Audi Remote Key Not Working TSB 2074765/1

Symptoms

Owners of various 2020-2025 Audi models, including A6, A7, A8, Q5, Q7, Q8, e-tron, and RS variants, may experience performance concerns related to their central locking system or their remote control key. The primary symptom is an Audi remote key not working, which can manifest as the key failing to lock or unlock the vehicle, or other general malfunctions of the central locking system. Customers may report "various performance concerns about the central locking system and/or remote control key." Workshop findings often determine that the remote control key itself is the possible cause of these complaints.

Technical Background and Diagnosis

Audi Technical Service Bulletin 2074765/1 addresses instances where remote control keys were replaced under warranty due to issues that were actually caused by improper handling during battery replacement. The bulletin explains that if the battery compartment cover is opened incorrectly, it may no longer be properly sealed. This improper sealing can allow liquid to enter the key fob, subsequently damaging the key's internal electronics. This damage often leads to an Audi remote key not working.

When diagnosing a complaint about an Audi remote key not working, technicians are instructed to carefully inspect the key fob. They must check for any signs that the battery compartment cover has been opened incorrectly. This includes looking for specific marks that indicate the cover was pried open by force from the outside, rather than using the intended release mechanism. The TSB provides several photographic examples to aid technicians in identifying such damage. Figure 1, Figure 2, and Figure 3 illustrate external damage to the key fob battery cover, showing stress marks and signs of prying. Figure 4 further depicts the internal damage to the key fob electronics caused by water ingress, which can occur when the seal is compromised.

If this type of damage is evident on the remote control key, any related complaints, such as an Audi remote key not working or central locking system issues, should be attributed to external influence rather than a manufacturing defect.

Important Warnings

Audi explicitly states that damage to the remote control key resulting from improper handling or outside influence is not covered by any Audi Warranty. This means owners may be responsible for the cost of replacement if the damage is determined to be self-inflicted during battery changes.

Owner Action

If you are experiencing an Audi remote key not working or central locking system issues, it is recommended to have your vehicle inspected by an authorized Audi service center. To prevent damage to your remote control key, it is crucial to always consult your vehicle's owner's manual for the correct procedure before attempting to replace the key fob battery yourself. The TSB includes an illustration from the owner's manual (Figure 5) demonstrating how to properly release the key fob battery cover using its designated release mechanism, thereby preventing damage and avoiding potential out-of-warranty repair costs.

Source: NHTSA ID: 11005905