The 2021 VW GLI boasts impressive lighting features, controllable via VCDS. This guide provides a comprehensive overview of the tail light and headlight coding channels for the 2021 VW GLI, based on data from a 2021 R-Line (likely sharing similar coding structures). While minor differences may exist due to fog light configurations, the core coding principles should remain consistent.
Decoding the Rear Light Channels
The following table outlines the rear light coding channels for the 2021 VW GLI:
| Leuchte | Description | Position |
|---|---|---|
| 17 | Left inside LED rear running light | 0A |
| 16 | Right inside LED rear running light | 1A |
| 23 | Left outside LED rear running light | 0A |
| 24 | Right outside LED rear running light | 1A |
| 28 | Left rear LED three boxes running, brake, turn light | 13 |
| 27 | Right rear LED three boxes running, brake, turn light | 23 |
| 20 | Left rear LED clear lens brake, turn light | 13 |
| 21 | Right rear LED clear lens brake, turn light | 23 |
| 22 | Center brake light (CHML) | |
| 25 | LED license plate lights |
Understanding the Front Light Channels
Here’s a breakdown of the front light coding channels for the 2021 VW GLI:
| Leuchte | Description | Position |
|---|---|---|
| 12 | Left fog light | 38 |
| 13 | Right fog light | 42 |
| 2 | Left DRL Signal | 48 |
| 3 | Right DRL Signal | 4C |
| 4 | Left DRL Supply | 3A |
| 5 | Right DRL Supply | 44 |
| 6 | Left Low Beam | 36 |
| 7 | Right Low Beam | 40 |
| 8 | Left High Beam | 37 |
| 9 | Right High Beam | 41 |
| 0 | Left Turn Signal | 34 |
| 1 | Right Turn Signal | 3E |
Decoding the Abbreviations
Understanding the abbreviations used in the coding channels is crucial for proper adjustments:
- BLK: Blinker (Turn Signals)
- SL: Standlicht (Parking Lights – not used in Facelift models)
- TFL: Tagfahrlicht (Day Running Lights – used and dimmed for parking lights in Facelift models)
- ABL: Abblendlicht (Dipped Beam/Low Beam)
- FL: Fernlicht (High Beam)
- Shutter/Maskierung: High beam shutter for Xenon lamps (not used in Facelift models)
Conclusion: Customizing Your 2021 VW GLI Lighting
This guide provides a foundation for understanding the coding structure behind the 2021 VW GLI’s lighting system. Using VCDS and this information, you can customize various aspects of your vehicle’s lights. Remember to exercise caution when modifying coding parameters and consult reputable sources for detailed instructions before making any changes. Always back up your original coding before implementing any modifications.
