Enabling RS lighting animations on an Audi A3 8Y can be tricky, especially with models equipped with Matrix headlights. While coding these animations is generally straightforward on A3 8Y models with standard LED headlights, variations in BCM (Body Control Module) hardware and software can present challenges. This article explores these challenges and delves into potential solutions using VCDS (Vag-Com Diagnostic System).
Successful Coding: LED Headlights
RS animation coding has been successfully implemented on the following Audi A3 8Y models:
- 2022 A3 8Y Sportback with LED headlights (PR Code: 8IT)
- 2021 A3 8Y Sedan with LED headlights (PR Code: 8IT)
These vehicles, equipped with standard LED headlights, accepted the coding changes without issue, allowing for the desired RS lighting animations.
The Matrix Headlight Challenge
Difficulties arose when attempting to enable RS animations on A3 8Y sedans with Matrix LED headlights (PR Code: 8IY). Two 2021 models with Matrix headlights retained the standard animation after coding attempts. The goal is to achieve the RS animation, but so far, these attempts have been unsuccessful.
Investigating the BCM: Hardware and Software Discrepancies
A comparison of adaptation channels between successful and unsuccessful coding attempts revealed no discernible differences. However, a closer examination of the BCM hardware identified variations. Unfortunately, a comprehensive VCDS adaptation log comparing both successful and unsuccessful vehicles is unavailable. Only full scans are available for analysis.
Below is the BCM identification from a vehicle where coding was unsuccessful (Matrix Headlights):
Address 09: Cent. Elect. (J519) Labels:. 5Q0-937-08X-V2.clb
Part No SW: 5WA 937 086 G HW: 5WA 937 086 G
Component: BCM 37W BOSCH 018 0158
Serial number: BXJ53F071220951
Dataset Number: 8Y0909514C 0041
ASAM Dataset: EV_BCM37w 006001
ROD: EV_BCM37w_006_VW41.rod
VCID: 55FCEEF2D588A4325C5-8000 SFDAnd here’s the BCM identification from a vehicle where coding was successful (LED Headlights):
Address 09: Cent. Elect. (J519) Labels:. 5Q0-937-08X-V2.clb
Part No SW: 5WA 937 086 N HW: 5WA 937 086 N
Component: BCM37w_H026 0174
Serial number: BXJ53F110921940
Dataset Number: 8Y0909514F 0048
ASAM Dataset: EV_BCM37w 007001
ROD: EV_BCM37w_007_AU38.rod
VCID: 5CEAFBD6B6A2757A6BB-8008 SFDThe key differences lie in the Part Number SW/HW, Component, Dataset Number, and ROD. These variations suggest potential incompatibility between certain BCM versions and the desired RS animation coding for Matrix headlights. Further investigation is required to pinpoint the exact cause of this incompatibility.
Seeking Solutions: Community Input
The challenge of enabling RS lighting animations on Audi A3 8Y models with Matrix headlights requires further exploration. Community input and shared experiences using VCDS are crucial to identifying a solution. Specific insights regarding adaptation channel modifications or alternative coding methods for vehicles with Matrix headlights are highly sought after. Any information regarding successful implementations or further troubleshooting steps would be greatly appreciated.
