The Audi A3 8V, like its MQB platform sibling the Golf Mk7, often presents challenges when coding cornering lights using VCDS. A common misconception arises from confusing “Abbiegelicht” (cornering light) with “Abblendlicht” (low beam). This article clarifies the proper VCDS coding procedure for A3 8V cornering lights, focusing on vehicles equipped with HID headlights.
For A3 8Vs with halogen headlights, static cornering functionality utilizes the fog lights. VCDS adaptation channels within the “static AFS Light” group in the BCM (Body Control Module) control this function. Adjusting “Leuchte12NL LB45” and “Leuchte13NL RB5” will correctly configure the fog lights for cornering.
However, in A3 8Vs with factory HID headlights, the cornering function is managed by a separate module, typically the Headlight Control Module (J745) at address hex55. The BCM still retains the “static AFS Light” adaptation channels, but they do not directly control the cornering lamps in HID-equipped vehicles. Examining the factory coding adaptation map for HID-equipped Mk7 Golfs (and likely the A3 8V due to platform sharing) reveals the absence of “Abblendlicht links/rechts” commands related to cornering lights.
Therefore, directly manipulating “Leuchte12NL LB45” and “Leuchte13NL RB5” in an HID-equipped A3 8V will not achieve the desired cornering light functionality. Instead, focus on coding within module J745 (address hex55) to properly configure the cornering lamps. Consult the specific coding documentation for the J745 module to identify the correct adaptation channels for cornering light adjustments in your A3 8V. This approach ensures accurate and effective coding for static cornering lights on HID-equipped A3 8V models.
Misinterpreting the system and attempting to code fog lights for cornering when the vehicle has dedicated HID cornering lamps will lead to incorrect functionality. Understanding the distinction between halogen and HID systems is crucial for successful VCDS coding of A3 8V cornering lights.
