2023-2024 Audi Advanced Key Door Handle Inoperative TSB

Audi has released Technical Service Bulletin (TSB) 57 24 43 2027368/5 to address concerns regarding the Audi advanced key inoperative condition, specifically when the door handle touch sensors are not functioning as expected. This TSB, issued on May 23, 2024, supersedes an earlier bulletin, Group 57 number 14-04, dated October 31, 2014, and provides updated information for all Audi models from 2008 to 2024.

This bulletin clarifies various scenarios where the advanced key system might appear to be malfunctioning, but is actually operating as designed or is affected by external factors. It is primarily an informational document intended to help technicians and owners understand the system's behavior.

Symptoms of an Inoperative Advanced Key System

Owners may notice the following symptoms related to the Audi advanced key inoperative condition:

• The exterior door handle touch sensors for the Audi advanced key are inoperative on one or more doors.
• The vehicle cannot be unlocked or locked using the door handle touch sensors.
• The key blade or remote key buttons must be used to mechanically or electrically unlock and lock the vehicle.

Technical Background and Causes

The TSB 57 24 43 2027368/5 outlines several concept-related restrictions and conditions that can lead to the advanced key system appearing inoperative:

• Interference from Transmitters: Audi advanced key functions can be temporarily disabled by interference from other transmitters operating in close proximity, such as cell phones, wireless headphones, or other vehicle keys. These devices use similar frequency ranges, which can prevent the system from positively identifying your key.

• Simultaneous Lock/Unlock Command: If you reach into the door handle while simultaneously touching the lock sensor to lock the vehicle, it will not lock. This occurs because the unlocking command from the sensor has a higher priority and is sent at the same time as the lock command.

• Rapid Door Handle Operation: The Audi advanced key system requires a short response time for key identification. If the door handle is grabbed and pulled very quickly, the key may not yet be identified, and the vehicle will not unlock.

• Brief Unlocking Delay After Locking: After the vehicle is locked, there is a brief period during which unlocking the door is not possible. This feature allows the customer to confirm that the door is indeed locked by pulling the handle.

• Power Consumption Reduction: To conserve power, the door handle touch sensors deactivate after the vehicle has been parked for a few days. In this scenario, you must first pull the door handle once to